This application claims benefit of U.S. provisional application Ser. No. 60/500,014 filed Sep. 5, 2003. 
     BACKGROUND OF THE INVENTION 
     The present invention relates to processes for recovery of ethane, propane and NGL from natural gas whereby the expander shaft compressor is located in a new locations permitting the reflux generation requirement for the cryogenic absorber and/or gas processing distillation columns. 
     Current prior art processes for recovery of natural gas liquids comprise:
         A large sales gas export compressor that unnecessarily increases utilities, the large size needed to compensate for a high pressure drop across a turbo expander that provides some process refrigeration and dictating a low cryogenic absorber pressure.   A relatively high capacity cryogenic pump to pump a bottoms liquid stream from a cryogenic absorber.   Expander feed gas being at least partly condensed and used as a reflux to a demethanizer, causing loss of propane from a bottoms liquid product.   Process configuration and operating conditions that might result in a lower ethane plus or propane plus recovery (less than 99%). U.S. Pat. No. 6,581,410 B1.   Process configuration and operating conditions whereby maximum heat integration between cold and hot streams are not always optimally effected. This results in a lower outlet temperatures of cold streams and accordingly a lower overall UA.   In propane recovery, relatively large energy consumption in a de-ethanizer bottom reboiler due to operation at pressures higher than a cryogenic absorber.   In propane recovery, a de-ethanizer must be designed with a relatively large diameter.   In propane recovery mode, extra equipment must be installed to provide chilling of feed gas through heat exchange with de-ethanizer side draw.   In ethane recovery, additional multi-flash vessels and LNG multi-stream, platefin heat exchangers are needed to generate multiple reflux streams for an absorber de-methanizer.   Excess carbon dioxide tends to accumulate an NGL product   In propane recovery, additional compressors are needed to recycle de-ethanizer overhead gases to a cryogenic absorber, which operates at a pressure above the de-ethanizer. PCT/US01/20633, WO 02/14763, US 2002/0166336 A1.   In propane recovery, ethane can build up in a gas loop between a de-ethanizer and a cryogenic absorber that makes operation unstable.   In a propane recovery, lean gas and de-ethanizer OVHD gases are recycled back to the cryogenic absorber. US 2004/0148964 A1, WO 2004/057253 A2.       

     U.S. Pat. Nos. 6,578,379, 6,278,035, 6,311,516, 6,354,105, 6,453,698, and 6,244,070 generally describe a state of the art using multiple pieces of expensive equipment and/or external refrigeration systems to accomplish high recovery of ethane from NGL. Older references, such as U.S. Pat. Nos. 4,851,020, 4,867,499, and 5,992,175, show ethane recovery systems with somewhat fewer pieces of equipment and less reliance on external refrigeration. The systems in these older references have been found to be incapable of obtaining presently commercially required recovery of ethane from NGL feeds. 
     Fractionation of the natural gas feed requires that a product stream contain a minimum specified amount of carbon dioxide. Obtaining a low level of carbon dioxide in the product stream has in the past typically required two or more separated fractionation columns processing the natural gas feed. 
     There is a need for a process that minimizes or eliminates the above problems. 
     SUMMARY OF THE INVENTION 
     A first form of the invention for ethane recovery is titled the “Ethane Plus Process”. 
     A second form of the invention for propane recovery is titled “HHH” Process for Propane Recovery”. 
     The present invention comprises processes for very high level recovery of ethane and natural gas liquids (“NGL”) from natural gas. The present invention uses an expander shaft compressor combination in a new location in the process flow sheet as compared with a prior art location as a booster compressor for a lean gas stream just prior to its compression by an export gas compressor, or to compress de-methanizer and de-ethanizer top product gases to lean gas pressure or to increase the feed gas pressure upstream the expander. This new application for the expander shaft compressor will include but not limited to the following applications:
         In a propane recovery mode for the process unit, compress de-ethanizer overhead gas and recycle it back, compressed, cooled and expanded as an absorption stream, to a top stage of a cryogenic absorber.   In an ethane recovery mode for the process unit which employs a single absorber demethanizer tower combination, compress, cool, and recycle part of a product (“sales”) gas stream (i.e., also part of an overhead gas stream of a absorber demethanizer tower) as reflux for the absorber demethanizer.   In an ethane recovery mode for the process unit, compress, cool, and recycle all demethanizer OVHD gas as reflux for the cryogenic absorber (in case of having a dedicated high pressure absorber and a dedicated low pressure demethanizer)   In a propane recovery mode and/or ethane recovery mode for the process unit, compress and cool part of an overhead gas stream from a cryogenic absorber upstream the absorber OVHD condenser for use as a refrigerant in heat exchange (OVHD condenser) with an overhead gas stream from either the cryogenic absorber demethanizer, a de-ethanizer or demethanizer. This refrigerant after absorbing such heat is returned at the same take-off point at same temperature and pressure to the overhead gas stream from the cryogenic absorber from which it was drawn.   In a propane recovery mode and/or ethane recovery mode for the process unit, condense and subcool part of an overhead gas stream from a cryogenic absorber (lean gas) for use as a refrigerant in heat exchange (OVHD condenser) with an overhead gas stream from either a de-ethanizer or demethanizer. This refrigerant after absorbing such heat is heated and compressed through the expander shaft compressor with or without residue gas from Deethanizer or demethanizer to be used as a reflux for the cryogenic absorber after being condensed, subcooled and expanded to absorber pressure.   Compress part of the feed gas or the expander feed gas or other gases in the flow sheet to be used as a refrigerant for absorber OVHD condenser or demethanizer OVHD condenser or Deethanizer OVHD condenser. The refrigerant after absorbing the heat load can be returned to an appropriate location in the flow sheet       

     As a result of this new location and service of the expander shaft compressor combination, the following advantages are realized:
         In a propane recovery mode for the process unit, the cryogenic absorber operates at a much higher pressure and reduces the export gas compressor size and utilities.   In a propane recovery mode for the process unit, the de-ethanizer operates at a much lower pressure and reduces external reboiling heat requirement, which in turn reduces the required column diameter.   In a propane recovery mode for the process unit, a pump for a bottoms liquid stream from the cryogenic absorber can be eliminated in most cases.   In an ethane recovery mode for the process unit, the demethanizer operates at a much lower pressure, which in turn reduces the required column diameter and eliminates the absorber bottom cryogenic pump. This is in case of having a dedicated high pressure absorber and a dedicated low pressure demethanizer configuration.   Higher ethane and propane recoveries in all mode of operation.   Lower carbon dioxide in NGL product in most of the cases.   Less number of processing equipment e.g., dedicated external feed or recycle compressors, dedicated self refrigeration packages and accessories, multiple cold box and flash vessels and others       

     In these processes, a feed gas is partly condensed and separated into a liquid feed fed to a single column and a vapor part fed to an expander. The expansion of part of the feed gas to power a compressor that compresses a part of the vapor overhead of the column, whereafter the compressed part of the vapor overhead is substantially condensed in at least two side reboilers for the column and a third bottom reboiler. The substantially condensed and compressed stream is flashed and fed to the top tray of the column. These steps to provide reflux to the column result in a highly effective solvent for ethane and NGL recovery from vapor rising through the column. The flashed reflux stream provides so much additional cooling duty to the column that ethane recovery with the invention processes can result in recovery of as much as 99.6 mole percent of the ethane in the feed gas. 
     An object of the present invention processes is to generate a solvent for ethane and NGL recovery, where the volume of the solvent needed can be varied by increasing or decreasing the portion of the column vapor overhead directed to a compressor connected by shaft to the feed gas expander. 
     Another object of the invention is to operate the cryogenic absorber at a much higher pressure in order to save power of the export compression. (in case of having a two separate absorber and de-methanizer. The latter is operating at a lower pressure than the absorber) 
     Another object of the invention is to provide heating duty for two side reboilers for the column from the heat of compression of the recycle part of the absorber demethanizer or all of de-ethanizer or demethanizer overhead vapor stream. 
     Another object of the invention is to provide a process configuration where carbon dioxide content in the NGL product stream is reduced over the prior art in some cases. This in turn reduces the cost and utilities of carbon dioxide treatment unit downstream of the invention process unit. 
     “HHH” Process for Propane Recovery 
     A second form of the invention comprises a process for propane recovery using a cryogenic absorber and a deethanizer. The equipment list is similar to the first form of the invention, in that a sales gas compressor, expander/compressor and two air coolers are used. A feed gas is partly condensed, with the liquid part being further cooled and fed to a deethanizer and the vapor part being expanded and fed to a lowest stage of a cryogenic absorber. An overhead gas stream from the absorber becomes the product gas stream. A solvent stream for the absorber is formed from the overhead gas stream from the deethanizer after compression via expander shaft compressor, air cooling and flashing to absorber pressure. The evaporative effect of the solvent stream increases the fractionation effect of the absorber. 
     The single expander is preferably (typical to given case) operated with an intake stream at about −40 degrees C. or lower, where the process benefits in that the condensation of ethane and heavier components will be effectively brought to the bottom product stream of the column. 
     The single column (i.e., a cryogenic absorber) is preferably (typical to given case) operated at 37 Barg or higher, as it has been found that it improves recovery of ethane and heavier components from the expander outlet gas portion and reduces buildup of ethane in recycle streams, as well as reducing the substantial size and utility requirements of the sales gas compressor. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The application and advantages of the present invention will become more apparent by referring to the following detailed schemes 
         FIG. 1  is a flow sheet of a first case for the first form of the invention for ethane recovery using a single absorber demethanizer tower. 
         FIG. 2  is a flow sheet of second and third cases for the first form of the invention for ethane recovery for the same feed composition as processed by the invention of  FIG. 1 . 
         FIG. 3  is a flow sheet of a fourth case of the second form of the invention for propane recovery from a rich gas feed stream using a high pressure cryogenic absorber and a low pressure de-ethanizer. 
         FIG. 4  is a generalized flow sheet of a fifth case of the invention. 
         FIG. 5  is a generalized flow sheet of a sixth case of the invention. 
         FIG. 6  is a generalized flow sheet of a seventh case of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The item numbers of  FIGS. 1 and 2  represent similar process streams and equipment as appropriate. The item numbers of  FIG. 3  refer only to that figure&#39;s description below and to the Case  4  shown in Table 4. The present invention comprises a number of cases. Case  1  corresponds to Table 1 below and  FIG. 1 . Case  2  corresponds to Table 2 below and  FIG. 2 . Case  3  corresponds to Table 3 below and  FIG. 2 . Case  4  corresponds to Table 4 below and  FIG. 3 . Cases  1 – 3  are directed to an ethane recovery process (“Ethane Plus Process”) with reduced equipment cost and utilities requirements. Case  4  is directed to a propane recovery process (“HHH” Process) with reduced equipment cost and utilities requirements. 
       FIGS. 1 and 2 , and their corresponding processes, are substantially the same except that in  FIG. 2  a portion of the feed gas  1  is cooled in exchanger LNG- 104  and exchanger LNG- 100  before being delivered to the high pressure separator V- 100 . Several pieces of heat transfer equipment are identified with the prefix “LNG-”, which indicates the presence of a multistream heat exchanger. The particular advantages of these exchangers may appreciated with a review of Tables 1–3 for those pieces of equipment, in that relatively close approach temperatures are easily attained, as is well known in the art. 
       FIG. 1  shows a feed gas stream  1  being cooled in exchanger LNG- 100 , forming stream  3 , which is in turn separated in vessel V- 100 , a high pressure separator. Vapor stream  4  is expanded in expander K- 100  to form stream  8 . Stream  8  is fed to column T- 101 , a column with in a specific form about 25 theoretical stages. Stream  5  is withdrawn from vessel V- 100  and flashed across valve VLV- 100  to form stream  9 . Streams  8  and  9  are fed to column T- 101 , in a specific example, at stages  7  and  14  of column T- 101 . Column T- 101  comprises at least two side reboiler exchangers LNG- 102  and LNG- 103  which respectively take streams  40  and  50  from stages  11  and  15 , heat them and return the heated streams  41  and  51  to stages  12  and  16 . A bottom reboiler exchanger LNG- 103  heats stream  60  to form stream  61 . Column T- 101  produces an overhead vapor stream  20  that is heated in exchanger LNG- 101  to form stream  22  and a bottoms liquid stream NGL that is the NGL product stream for this process. Vapor stream  22  is heated in exchange LNG- 100  to cool feed gas stream  1 , producing a vapor stream  23  that is split to form a first vapor stream  26 , compressed in compressor K- 102  and cooled in air cooler AC- 101  to form this process&#39; sales gas stream, and a second vapor stream  25  that is compressed in compressor K- 101  via the expansion energy of expander K- 100  (the invention part of the flowsheet). Stream  25  thereafter forms stream  10 , which is cooled in air cooler AC- 100  to form stream  11 . Stream  11  is cooled sequentially in exchangers LNG- 104 , LNG- 103 , LNG- 102  and LNG- 101  respectively forming streams  70 ,  71 ,  72  and  17 . Stream  17  is flashed at valve VLV- 102  into column T- 101  to form the sole reflux stream for column T- 101 . 
     The process shown in  FIG. 1  and whose data appears in Table 1 obtains approximately 99.3 mole percent recovery of stream  1  ethane. It has been found that, as compared with prior art processes, carbon dioxide is reduced in the NGL product stream NGL. The processes of Cases  1 – 3 , i.e.,  FIGS. 1 and 2 , use a single fractionation column for ethane absorption as well as NGL production. The composition and volume of solvent used for capturing ethane and NGL can be changed with varying the flow rate of stream  25  to increase or decrease recycle. In addition, all the reboiling requirements of column T- 101  are effectively recovered to the process primarily to generate reflux and solvent for column T- 101 . 
       FIG. 2  is substantially the same in description and process except that the stream FEED is split into streams  1  and stream  2 . Stream  2  is cooled in exchanger LNG- 104  in indirect heat transfer with stream  60 , cooling in that exchanger along with stream  11 . The cooled stream  2 , i.e., stream  2 A, is further cooled in exchanger LNG- 100  with stream  1 , with streams  2 C and  3  being formed respectively for separation in vessel V- 100 . This apparently small change in process stream heat integration produces surprising results. 
     The recovery of ethane for Cases  2  and  3  are about 99.4 mole percent and 99.6 mole percent respectively. Case  1  and Case  2  require cooling so that stream  5  is cooled to about −46 degrees C. Case  3  requires cooling so that stream  5  is about −48 degrees C. This small change requires the appropriate process modifications shown in the tables, where Case  3  is shown to be superior in recovering heavier components over Cases  1  and  2 . Column T- 110  pressure is also different as to the Cases  1 – 3 , where in Cases  1  and  3  the pressure is 23.5 Barg and 24.5 Barg in Case  2 . 
     Column T- 101 , for Cases  1 ,  2  and  3  respectively operates with an overhead stream  20  temperature of −102.2 degrees C., −101.1 degrees C., and −102.4 degrees C. at pressures of 23 Barg, 24 Barg, and 23 Barg. At these conditions, stream  20  is almost ethane free. 
     In Case  1 , recycle gas stream  10  is cooled in the air cooler to about 66 degrees C., sufficient for reboiling column T- 101 . For Cases  2  and  3 , recycle gas stream  10  is be cooled in the air cooler to about 40 degrees C., sufficient to provide the reboiling duty for T- 101  in those cases in addition to heat load provided by part of the feed gas stream. Cold residue recycle gas stream  72  is further condensed and sub cooled by exchange with cold stream  20  in exchanger LNG- 101 . Product sales gas is compressed to 62.75 Barg. This configuration provides, in addition to high ethane recovery and less CO2 in NGL product, a less number of processing equipment like cold boxes and flash vessels. 
     Case  4  is shown in  FIG. 3  and its operating data shown in Table 4. Case  4  is for propane recovery. Feed gas  1  is cooled in exchanger E- 1  against streams  27 ,  10  and  11  to form stream  2 , a partly condensed stream separated in vessel V- 1  to form a vapor stream  3  and a liquid stream  4 . Stream  4  is flashed to form stream  9 , which is cooled in exchanger E- 3  and exchanger E- 1  respectively to form streams  10  and  13 . Stream  13  is fed to a mid stage of deethanizer column C- 2 . Column C- 2  produces an overhead vapor stream  14  that is cooled in exchanger E- 3  to form stream  15 , which is separated into vapor and liquid streams  16  and  18 / 19 . Stream  18 / 19  is the entire reflux for column C- 2 . A bottom liquid stream  20  of column C- 2  is split to form reboiling stream  21  and NGL product stream  17 . 
     In  FIG. 3 , vapor stream  16  is heated in exchanger E- 2 , compressed in compressor K- 1 , cooled in exchanger A- 1 , cooled in exchanger E- 2 , and flashed across a valve to respectively form streams  22 ,  23 ,  24 ,  25  and  26 . Stream  26  forms the sole absorption solvent stream for cryogenic absorber C- 1 , which contacts the vapor part of stream  5  in absorber C- 1 . The overhead vapor stream  6  of absorber C- 1  is heated in exchanger E- 2 , heated in exchanger E- 1 , compressed in compressor K- 2 , and cooled in air cooled exchanger A- 2  to respectively form streams  27 ,  28 ,  29 , and  30  to deliver a sales gas product stream. Stream  3  from vessel V- 1  is expanded in expander EXP- 1  to form steam  5 , which is fed to the bottom of absorber C- 1 . The sole energy used to drive compressor K- 1  is from the shaft energy from expander EXP- 1 . 
       FIG. 4  shows a second case of the second form of the invention for ethane recovery. Two separate columns, cryogenic absorber C- 1  and de-methanizer C- 2 , are used. A de-methanizer top gas is heated in a series of heat exchangers E- 3  and E- 1  and is compressed via expander shaft compressor. Compressed gas is then returned as a reflux to column C- 2  top tray after being cooled, condensed, sub-cooled (in E- 2 ) and throttled in pressure to absorber pressure. 
       FIG. 5  shows a fourth case of the first form of the invention for ethane recovery. In this case the expander shaft compressor K- 100 /K- 101  is used to used to provide the power requirement of an internal refrigeration system. A slip stream from column T- 101  overhead is heated and compressed in expander shaft compressor K- 100 /K- 101 . It is then cooled, condensed and sub-cooled at high pressure. The stream is then throttled to a pressure just above a take off point pressure. Throttling generates refrigeration which allows the mixture to be used as a refrigerant to provide the cooling and reflux generation in the column T- 101  OVHD condenser system. The mixture after heating is returned to same take off point at same pressure and temperature. 
       FIG. 6  shows a fifth case of the first form of the invention for ethane recovery. In this case, a slip stream of the feed is compressed via the expander shaft compressor K- 100 /K- 101  and is then used as a reflux for column T- 101  after being cooled, condensed, sub-cooled and throttled to column pressure. The mixture from the feed expander is then directed to a mid point in the column T- 101  top section. 
       FIG. 7  shows a sixth case of the first form of the invention for ethane recovery. In this case, expander shaft compressor K- 100 /K- 101  is used to provide the overhead condenser duty of column T 101  absorber de-methanizer column. An open loop, self refrigeration system is made via compressing part of the feed gas stream. The refrigerant after heat exchange in the OVHD condenser is directed to a middle point of the top section of the absorber de-methanizer. 
     The above design options will sometimes present the skilled designer with considerable and wide ranges from which to choose appropriate apparatus, conditions, compositions and method modifications for the above examples. However, the objects of the present invention will still be obtained by that skilled designer applying such design options in an appropriate manner. 
     
       
         
               
             
               
               
               
               
             
               
               
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
             
               
               
               
             
               
               
             
               
               
               
             
           
               
                 TABLE 1 
               
               
                   
               
               
                 Case 1 - Ethane Plus Process. 99.3% Ethane Recovery 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 Streams 
                   
                   
                   
               
               
                 Name 
                 Feed 
                 NGL 
                 Sales Gas 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 0 
                 1 
               
               
                 Temperature (C) 
                 24 
                 23.14 
                 40 
               
               
                 Pressure (bar_g) 
                 60.99 
                 23.3 
                 62.25 
               
               
                 Molar Flow (kgmole/h) 
                 1.50E+04 
                 1479 
                 1.35E+04 
               
               
                 Mass Flow (kg/h) 
                 2.79E+05 
                 6.07E+04 
                 2.19E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 74.97 
                 38.7753 
                 36.1871 
               
               
                 Comp Molar Flow (Nitrogen) 
                 52.485 
                 0 
                 52.485 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 13434.63 
                 8.3602 
                 13426.2876 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 788.685 
                 782.7796 
                 5.8858 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 356.85 
                 356.849 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 80.97 
                 80.9699 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 98.955 
                 98.955 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 35.985 
                 35.985 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 28.485 
                 28.485 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 28.485 
                 28.485 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 15 
                 15 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 4.5 
                 4.5 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Streams 
               
             
          
           
               
                 Name 
                 3 
                 4 
                 5 
                 8 
                 9 
               
               
                   
               
               
                 Vapor Fraction 
                 0.8994 
                 1 
                 0 
                 0.9039 
                 0.3701 
               
               
                 Temperature (C) 
                 −46 
                 −46 
                 −46 
                 −85.14 
                 −69.8 
               
               
                 Pressure (bar_g) 
                 60.49 
                 60.49 
                 60.49 
                 23.5 
                 23.5 
               
               
                 Molar Flow (kgmole/h) 
                 1.50E+04 
                 1.35E+04 
                 1509 
                 1.35E+04 
                 1509 
               
               
                 Mass Flow (kg/h) 
                 2.79E+05 
                 2.35E+05 
                 4.44E+04 
                 2.35E+05 
                 4.44E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 74.97 
                 64.1046 
                 10.8654 
                 64.1046 
                 10.8654 
               
               
                 Comp Molar Flow (Nitrogen) 
                 52.485 
                 51.1377 
                 1.3473 
                 51.1377 
                 1.3473 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 13434.63 
                 12540.2794 
                 894.3506 
                 12540.3 
                 894.351 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 788.685 
                 594.0489 
                 194.6361  
                 594.049 
                 194.636 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 356.85 
                 179.9304 
                 176.9196 
                 179.93 
                 176.92 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 80.97 
                 26.2151 
                 54.7549 
                 26.2151 
                 54.7549 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 98.955 
                 25.4446 
                 73.5104 
                 25.4446 
                 73.5104 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 35.985 
                 5.1288 
                 30.8562 
                 5.1288 
                 30.8562 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 28.485 
                 3.1534 
                 25.3316 
                 3.1534 
                 25.3316 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 28.485 
                 1.2804 
                 27.2046 
                 1.2804 
                 27.2046 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 15 
                 0.2725 
                 14.7275 
                 0.2725 
                 14.7275 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 4.5 
                 0.0327 
                 4.4673 
                 0.0327 
                 4.4673 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Streams 
               
               
                 Name 
                 10 
                 11 
                 17 
                 18 
                 20 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0 
                 0 
                 1 
               
               
                 Temperature (C) 
                 97.92 
                 66 
                 −100.7 
                 −102.6 
                 −102.2 
               
               
                 Pressure (bar_g) 
                 50.37 
                 49.87 
                 47.87 
                 23.5 
                 23 
               
               
                 Molar Flow (kg mole/h) 
                 4270 
                 4270 
                 4270 
                 4270 
                 1.78E+04 
               
               
                 Mass Flow (kg/h) 
                 6.90E+04 
                 6.90E+04 
                 6.90E+04 
                 6.90E+04 
                 2.88E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 11.428 
                 11.428 
                 11.428 
                 11.428 
                 47.6146 
               
               
                 Comp Molar Flow (Nitrogen) 
                 16.5742 
                 16.5742 
                 16.5742 
                 16.5742 
                 69.0592 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 4239.8937 
                 4239.8937 
                 4239.8937 
                 4239.89 
                 17666.2 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 1.859 
                 1.859 
                 1.859 
                 1.859 
                 7.7445 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Streams 
               
               
                 Name 
                 22 
                 23 
                 24 
                 25 
                 26 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 1 
                 1 
                 1 
               
               
                 Temperature (C) 
                 −76.12 
                 22.17 
                 22.17 
                 22.17 
                 117.8 
               
               
                 Pressure (bar_g) 
                 22.5 
                 22 
                 22 
                 22 
                 62.75 
               
               
                 Molar Flow (kgmole/h) 
                 1.78E+04 
                 1.78E+04 
                 1.35E+04 
                 4270 
                 1.35E+04 
               
               
                 Mass Flow (kg/h) 
                 2.88E+05 
                 2.88E+05 
                 2.19E+05 
                 6.90E+04 
                 2.192+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 47.6146 
                 47.6146 
                 36.1871 
                 11.4275 
                 36.1871 
               
               
                 Comp Molar Flow (Nitrogen) 
                 69.0592 
                 69.0592 
                 52.485 
                 16.5742 
                 52.485 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 17666.1678 
                 17666.1678 
                 13426.2876 
                 4239.88 
                 13426.3 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 7.7445 
                 7.7445 
                 5.8858 
                 1.8587 
                 5.8858 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Streams 
               
               
                 Name 
                 40 
                 41 
                 50 
                 51 
                 61 
               
               
                   
               
               
                 Vapor Fraction 
                 0 
                 0.278 
                 0 
                 0.2571 
                 0.3258 
               
               
                 Temperature (C) 
                 −68.99 
                 −49.91 
                 −41.56 
                 −15.26 
                 23.14 
               
               
                 Pressure (bar_g) 
                 23.13 
                 23.13 
                 23.18 
                 22.68 
                 23.3 
               
               
                 Molar Flow (kgmole/h) 
                 2148 
                 2148 
                 2503 
                 2503 
                 2194 
               
               
                 Mass Flow (kg/h) 
                 5.91E+04 
                 5.91E+04 
                 8.60E+04 
                 8.60E+04 
                 8.46E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 120.4741 
                 120.4741 
                 104.4713 
                 104.471 
                 91.9275 
               
               
                 Comp Molar Flow (Nitrogen) 
                 0.1403 
                 0.1403 
                 0.0342 
                 0.0342 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 840.6142 
                 840.6142 
                 522.732 
                 522.732 
                 29.7185 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 928.8846 
                 928.8846 
                 1177.4388 
                 1177.44 
                 1310.5 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 195.231 
                 195.231 
                 398.8125 
                 398.813 
                 446.51 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 26.8529 
                 26.8529 
                 84.5485 
                 84.5485 
                 91.0065 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 25.8084 
                 25.8084 
                 101.9202 
                 101.92 
                 108.36 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 5.1443 
                 5.1443 
                 36.3722 
                 36.3722 
                 37.6766 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 3.1571 
                 3.1571 
                 28.6936 
                 28.6936 
                 29.5609 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 1.2785 
                 1.2785 
                 28.5104 
                 28.5104 
                 28.9284 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0.2719 
                 0.2719 
                 14.9842 
                 14.9842 
                 15.0996 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0.0326 
                 0.0326 
                 4.4924 
                 4.4924 
                 4.5129 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                 Streams 
                   
                   
                   
                   
               
               
                   
                   
                   
                   
                 Btm-Reb 
               
               
                 Name 
                 70 
                 71 
                 72 
                 Feed 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 1 
                 0 
               
               
                 Temperature (C) 
                 15.24 
                 −40.06 
                 −67.49 
                 12.66 
               
               
                 Pressure (bar_g) 
                 49.37 
                 48.87 
                 48.37 
                 23.3 
               
               
                 Molar Flow (kgmole/h) 
                 4270 
                 4270 
                 4270 
                 2194 
               
               
                 Mass Flow (kg/h) 
                 6.90E+04 
                 6.90E+04 
                 6.90E+04 
                 8.46E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 11.428 
                 11.428 
                 11.428 
                 91.9275 
               
               
                 Comp Molar Flow (Nitrogen) 
                 16.5742 
                 16.5742 
                 16.5742 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 4239.8937 
                 4239.8937 
                 4239.8937 
                 29.7185 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 1.859 
                 1.859 
                 1.859 
                 1310.5 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 446.51 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 91.0065 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 108.36 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 37.6766 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 29.5609 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 28.9284 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 15.0996 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 4.5129 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                 LNGs 
                   
                   
                   
                   
                   
               
               
                 Name 
                 LNG-100 
                 LNG-101 
                 LNG-102 
                 LNG-103 
                 LNG-104 
               
               
                   
               
               
                 LMTD (C) 
                 7.369 
                 5.986 
                 3.77 
                 8.409 
                 14.19 
               
               
                 UA (Calculated) (kJ/C-h) 
                 9.31 E+06 
                 3.82E+06 
                 1.77E+06 
                 1.24E+06 
                 6.34E+05 
               
               
                 Hot Pinch Temperature (C) 
                 24 
                 −100.7 
                 −67.49 
                 −40.06 
                 15.24 
               
               
                 Cold Pinch Temperature (C) 
                 22.17 
                 −102.2 
                 −68.99 
                 −41.56 
                 12.66 
               
               
                 Exchanger Cold Duty (kcal/h) 
                 1.64E+07 
                 5.46E+06 
                 1.60E+06 
                 2.50E+06 
                 2.15E+06 
               
               
                 Minimum Approach (C) 
                 1.829 
                 1.5 
                 1.5 
                 1.5 
                 2.578 
               
               
                   
               
             
          
           
               
                 Air coolers 
                   
                   
               
               
                 Name 
                 AC-100 
                 AC-101 
               
               
                   
               
               
                 Duty (kcal/h) 
                 −1.36E+06 
                 −1.08E+07 
               
               
                   
               
               
                 Compressors 
               
               
                 Name 
                 K-101 
                 K-102 
               
               
                   
               
               
                 Adiabatic Efficiency 
                 78 
                 80 
               
               
                 Polytropic Efficiency 
                 80 
                 82 
               
               
                 Capacity (act feed vol flow) 
                 4326 
                 1.37E+04 
               
               
                 (ACT_m3/h) 
               
               
                 Polytropic Head (m) 
                 1.33E+04 
                 1.74E+04 
               
               
                 Adiabatic Head (m) 
                 1.30E+04 
                 1.70E+04 
               
               
                 Feed Pressure (bar_g) 
                 22 
                 22 
               
               
                 Product Pressure (bar_g) 
                 50.37 
                 62.75 
               
               
                 Feed Temperature (C) 
                 22.17 
                 22.17 
               
               
                 Product Temperature (C) 
                 97.92 
                 117.8 
               
               
                 Energy (kW) 
                 3131 
                 1.26E+04 
               
               
                   
               
             
          
           
               
                 Expanders 
                   
               
               
                 Name 
                 K-100 
               
               
                   
               
               
                 Feed Pressure (bar_g) 
                 60.49 
               
               
                 Product Pressure (bar_g) 
                 23.5 
               
               
                 Feed Temperature (C) 
                 −46 
               
               
                 Product Temperature (C) 
                 −85.14 
               
               
                 Energy (kW) 
                 3131 
               
               
                 Adiabatic Efficiency 
                 85 
               
               
                   
               
               
                 Reboiled Absorbers 
               
               
                 Name 
                 T-101 
               
               
                   
               
               
                 Number of Trays 
                 25 
               
               
                   
               
               
                 Separators 
               
               
                 Name 
                 V-100 
               
               
                   
               
               
                 Vessel Temperature (C) 
                 −46 
               
               
                 Vessel Pressure (bar_g) 
                 60.49 
               
               
                 Vessel Diameter (m) 
                 1.981 
               
               
                 Vessel Length or Height (m) 
                 6.934 
               
               
                   
               
             
          
           
               
                 Valves 
                   
                   
               
               
                 Name 
                 VLV-100 
                 VLV-102 
               
               
                   
               
               
                 Feed Pressure (bar_g) 
                 60.49 
                 47.87 
               
               
                 Product Pressure (bar_g) 
                 23.5 
                 23.5 
               
               
                 Molar Flow (kgmole/h) 
                 1509 
                 4270 
               
               
                 Volume Flow (m3/h) 
                 106.3 
                 228.5 
               
               
                   
               
             
          
         
       
     
     
       
         
               
             
               
               
               
               
             
               
               
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
             
               
               
               
             
               
               
             
           
               
                 TABLE 2 
               
               
                   
               
               
                 Case 2 - Ethane Plus Process. 99.4% Ethane Recovery 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 Name 
                 Feed 
                 Sales Gas 
                 NGL 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0 
               
               
                 Temperature (C) 
                 24 
                 40 
                 25.17 
               
               
                 Pressure (bar_g) 
                 60.99 
                 62.25 
                 24.3 
               
               
                 Molar Flow (kgmole/h) 
                 1.50E+04 
                 1.35E+04 
                 1482 
               
               
                 Mass Flow (kg/h) 
                 2.79E+05 
                 2.19E+05 
                 6.08E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 74.97 
                 34.5299 
                 40.4385 
               
               
                 Comp Molar Flow (Nitrogen) 
                 52.485 
                 52.4849 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 13434.63 
                 13426.2602 
                 8.3597 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 788.685 
                 5.0341 
                 783.6695 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 356.85 
                 0 
                 356.8553 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 80.97 
                 0 
                 80.9706 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 98.955 
                 0 
                 98.9556 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 35.985 
                 0 
                 35.9851 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 28.485 
                 0 
                 28.4851 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 28.485 
                 0 
                 28.485 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 15 
                 0 
                 15 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 4.5 
                 0 
                 4.5 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Streams 
               
             
          
           
               
                 Name 
                 1 
                 2 
                 2a 
                 2b 
                 2c 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0.9997 
                 0.9997 
                 0.8994 
               
               
                 Temperature (C) 
                 24 
                 24 
                 16.3 
                 16.3 
                 −46 
               
               
                 Pressure (bar_g) 
                 60.99 
                 60.99 
                 60.74 
                 60.74 
                 60.49 
               
               
                 Molar Flow (kgmole/h) 
                 3000 
                 1.20E+04 
                 1.20E+04 
                 1.20E+04 
                 1.20E+04 
               
               
                 Mass Flow (kg/h) 
                 5.59E+04 
                 2.24E+05 
                 2.24E+05 
                 2.24E+05 
                 2.24E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 14.994 
                 59.976 
                 59.976 
                 59.976 
                 59.976 
               
               
                 Comp Molar Flow (Nitrogen) 
                 10.497 
                 41.988 
                 41.988 
                 41.988 
                 41.988 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 2686.926 
                 10747.704 
                 10747.704 
                 10747.704 
                 10747.704 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 157.737 
                 630.948 
                 630.948 
                 630.948 
                 630.948 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 71.37 
                 285.48 
                 285.48 
                 285.48 
                 285.48 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 16.194 
                 64.776 
                 64.776 
                 64.776 
                 64.776 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 19.791 
                 79.164 
                 79.164 
                 79.164 
                 79.164 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 7.197 
                 28.788 
                 28.788 
                 28.788 
                 28.788 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 5.697 
                 22.788 
                 22.788 
                 22.788 
                 22.788 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 5.697 
                 22.788 
                 22.788 
                 22.788 
                 22.788 
               
               
                 (kgmoe/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 3 
                 12 
                 12 
                 12 
                 12 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0.9 
                 3.6 
                 3.6 
                 3.6 
                 3.6 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 3 
                 4 
                 5 
                 8 
                 9 
               
               
                   
               
               
                 Vapor Fraction 
                 0.8994 
                 1 
                 0 
                 0.9062 
                 0.3615 
               
               
                 Temperature (C) 
                 −46 
                 −46 
                 −46 
                 −83.75 
                 −68.91 
               
               
                 Pressure (bar_g) 
                 60.49 
                 60.49 
                 60.49 
                 24.5 
                 24.5 
               
               
                 Molar Flow (kgmole/h) 
                 3000 
                 1.35E+04 
                 1509 
                 1.35E+04 
                 1509 
               
               
                 Mass Flow (kg/h) 
                 5.59E+04 
                 2.35E+05 
                 4.44E+04 
                 2.35E+05 
                 4.44E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 14.994 
                 64.1046 
                 10.8654 
                 64.1046 
                 10.8654 
               
               
                 Comp Molar Flow (Nitrogen) 
                 10.497 
                 51.1377 
                 1.3473 
                 51.1377 
                 1.3473 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 2686.926 
                 12540.2795 
                 894.3505 
                 12540.2795 
                 894.3505 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 157.737 
                 594.0489 
                 194.6361 
                 594.0489 
                 194.6361 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 71.37 
                 179.9304 
                 176.9196 
                 179.9304 
                 176.9196 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 16.194 
                 26.2151 
                 54.7549 
                 26.2151 
                 54.7549 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 19.791 
                 25.4446 
                 73.5104 
                 25.4446 
                 73.5104 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 7.197 
                 5.1288 
                 30.8562 
                 5.1288 
                 30.8562 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 5.697 
                 3.1534 
                 25.3316 
                 3.1534 
                 25.3316 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 5.697 
                 1.2804 
                 27.2046 
                 1.2804 
                 27.2046 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 3 
                 0.2725 
                 14.7275 
                 0.2725 
                 14.7275 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0.9 
                 0.0327 
                 4.4673 
                 0.0327 
                 4.4673 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 10 
                 11 
                 17 
                 18 
                 20 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0 
                 0 
                 1 
               
               
                 Temperature (C) 
                 84.61 
                 40 
                 −99.62 
                 −101.5 
                 −101.1 
               
               
                 Pressure (bar_g) 
                 49.06 
                 48.56 
                 46.56 
                 24.5 
                 24 
               
               
                 Molar Flow (kgmole/h) 
                 4627 
                 4627 
                 4627 
                 4627 
                 1.82E+04 
               
               
                 Mass Flow (kg/h) 
                 7.48E+04 
                 7.48E+04 
                 7.48E+04 
                 7.48E+04 
                 2.93E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 11.8192 
                 11.8192 
                 11.8192 
                 11.8192 
                 46.3489 
               
               
                 Comp Molar Flow (Nitrogen) 
                 17.6546 
                 17.9646 
                 17.9646 
                 17.9646 
                 70.4495 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 4595.5854 
                 4595.5854 
                 4595.5854 
                 4595.5854 
                 18021.8258 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 1.7233 
                 1.7233 
                 1.7233 
                 1.7233 
                 6.7572 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 22 
                 23 
                 24 
                 25 
                 26 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 1 
                 1 
                 1 
               
               
                 Temperature (C) 
                 −72.95 
                 16.46 
                 16.46 
                 16.46 
                 106.9 
               
               
                 Pressure (bar_g) 
                 23.5 
                 23 
                 23 
                 23 
                 62.75 
               
               
                 Molar Flow (kgmole/h) 
                 1.82E+04 
                 1.82E+04 
                 1.35E+04 
                 4627 
                 1.35E+04 
               
               
                 Mass Flow (kg/h) 
                 2.93E+05 
                 2.93E+05 
                 2.19E+05 
                 7.48E+04 
                 2.19E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 46.3489 
                 46.3489 
                 34.5299 
                 11.819 
                 34.5299 
               
               
                 Comp Molar Flow (Nitrogen) 
                 70.4495 
                 70.4495 
                 52.4849 
                 17.9646 
                 52.4849 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 18021.8258 
                 18021.8258 
                 13426.26 
                 4595.5656 
                 13426.2602 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 6.7572 
                 6.7572 
                 5.0341 
                 1.7231 
                 5.0341 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 40 
                 41 
                 50 
                 51 
                 61 
               
               
                   
               
               
                 Vapor Fraction 
                 0 
                 0.2848 
                 0 
                 0.2663 
                 0.3284 
               
               
                 Temperature (C) 
                 −66.79 
                 −47.35 
                 −38.43 
                 −12.19 
                 25.17 
               
               
                 Pressure (bar_g) 
                 24.13 
                 24.13 
                 24.18 
                 23.68 
                 24.3 
               
               
                 Molar Flow (kgmole/h) 
                 2212 
                 2212 
                 2554 
                 2554 
                 2206 
               
               
                 Mass Flow (kg/h) 
                 6.11E+04 
                 6.11E+04 
                 8.78E+04 
                 8.78E+04 
                 8.51E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 135.9214 
                 135.9214 
                 114.4527 
                 114.4527 
                 95.416 
               
               
                 Comp Molar Flow (Nitrogen) 
                 0.1467 
                 0.1467 
                 0.0367 
                 0.0367 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 856.9684 
                 856.9684 
                 521.5347 
                 521.5347 
                 29.1718 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 958.7866 
                 958.7866  
                 1213.5745 
                 1213.5745 
                 1315.8993 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 197.0634 
                 197.0634 
                 404.0662 
                 404.0662 
                 449.4052 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 26.9554 
                 26.9554 
                 85.1134 
                 85.1134 
                 91.5086 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 25.877 
                 25.877 
                 102.4393 
                 102.4393 
                 108.8985 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 5.1499 
                 5.1499 
                 36.4616 
                 36.4616 
                 37.8035 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 3.1596 
                 3.1596 
                 28.7491 
                 28.7491 
                 29.6488 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 1.2789 
                 1.2789 
                 28.5318 
                 28.5318 
                 28.9752 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0.2719 
                 0.2719 
                 14.9888 
                 14.9888 
                 15.1124 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0.0326 
                 0.0326 
                 4.4931 
                 4.4931 
                 4.5148 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                   
                   
                   
                   
                 Btm-Reb- 
               
               
                 Name 
                 70 
                 71 
                 72 
                 Feed 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 1 
                 0 
               
               
                 Temperature (C) 
                 17 
                 −36.93 
                 −65.29 
                 14.73 
               
               
                 Pressure (bar_g) 
                 48.06 
                 47.56 
                 47.06 
                 24.3 
               
               
                 Molar Flow (kgmole/h) 
                 4627 
                 4627 
                 4627 
                 2206 
               
               
                 Mass Flow (kg/h) 
                 7.48E+04 
                 7.48E+04 
                 7.48E+04 
                 8.51E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 11.8192 
                 11.8192 
                 11.8192 
                 95.416 
               
               
                 Comp Molar Flow (Nitrogen) 
                 17.9646 
                 17.9646 
                 17.9646 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 4595.5854 
                 4595.5854 
                 4595.5854 
                 29.1718 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 1.7233 
                 1.7233 
                 1.7233 
                 1315.8993 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 449.4052 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 91.5086 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 108.8985 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 37.8035 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 29.6488 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 28.9752 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 15.1124 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 4.5148 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                 LNGs 
                   
                   
                   
                   
                   
               
               
                 Name 
                 LNG-100 
                 LNG-101 
                 LNG-102 
                 LNG-103 
                 LNG-104 
               
               
                   
               
               
                 Number of Sides 
                 3 
                 2 
                 2 
                 2 
                 3 
               
               
                 LMTD (C) 
                 6.731 
                 3.862 
                 4.044 
                 8.19 
                 2.516 
               
               
                 UA (Calculated) (kJ/C-h) 
                 9.51E+06 
                 6.58E+06 
                 1.74E+06 
                 1.33E+06 
                 3.57E+06 
               
               
                 Hot Pinch Temperature (C) 
                 16.29 
                 −99.62 
                 −65.29 
                 −36.93 
                 16.29 
               
               
                 Cold Pinch Temperature (C) 
                 14.78 
                 −101.1 
                 −66.79 
                 −38.43 
                 14.73 
               
               
                 LMTD (C) 
                 6.731 
                 3.862 
                 4.044 
                 8.19 
                 2.516 
               
               
                 Exchanger Cold Duty (kW) 
                 1.78E+04 
                 7056 
                 1954 
                 3019 
                 2495 
               
               
                 Minimum Approach (C) 
                 1.515 
                 1.5 
                 1.5 
                 1.5 
                 1.565 
               
               
                   
               
             
          
           
               
                 Air coolers 
                   
                   
               
               
                 Name 
                 AC-100 
                 AC-101 
               
               
                   
               
               
                 Duty (kW) 
                 −2373 
                 −1.07E+04 
               
               
                   
               
               
                 Compressors 
               
               
                 Name 
                 K-101 
                 K-102 
               
               
                   
               
               
                 Volume Flow (m3/h) 
                 247.7 
                 723.5 
               
               
                 Adiabatic Efficiency 
                 78 
                 80 
               
               
                 Polytropic Efficiency 
                 80 
                 82 
               
               
                 Capacity (act feed vol flow) 
                 4379 
                 1.28E+04 
               
               
                 (ACT_m3/h) 
               
               
                 Polytropic Head (m) 
                 1.18E+04 
                 1.62E+04 
               
               
                 Adiabatic Head (m) 
                 1.15E+04 
                 1.58E+04 
               
               
                 Energy (kW) 
                 2999 
                 1.17E+04 
               
               
                   
               
             
          
           
               
                 Expanders 
                   
               
               
                 Name 
                 K-100 
               
               
                   
               
               
                 Energy (kW) 
                 2999 
               
               
                 Feed Pressure (bar_g) 
                 60.49 
               
               
                 Product Pressure (bar_g) 
                 24.5 
               
               
                 Feed Temperature (C) 
                 −46 
               
               
                 Product Temperature (C) 
                 −83.75 
               
               
                 Adiabatic Efficiency 
                 85 
               
               
                   
               
               
                 Reboiled Absorbers 2 
               
               
                 Name 
                 T-101 
               
               
                   
               
               
                 Number of Trays 
                 25 
               
               
                   
               
               
                 Separators 
               
               
                 Name 
                 V-100 
               
               
                   
               
               
                 Vessel Temperature (C) 
                 −46 
               
               
                 Vessel Pressure (bar_g) 
                 60.49 
               
               
                 Vessel Diameter (m) 
                 1.981 
               
               
                 Vessel Length or Height (m) 
                 6.934 
               
               
                   
               
             
          
         
       
     
     
       
         
               
             
               
               
               
               
             
               
               
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
             
               
               
               
             
               
               
             
           
               
                   
               
               
                 Case 3 - Ethane Plus Process, 99.6% Ethane Recovery 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 Name 
                 Feed 
                 Sales Gas 
                 NGL 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0 
               
               
                 Temperature (C) 
                 24 
                 40 
                 22.33 
               
               
                 Pressure (bar_g) 
                 60.99 
                 62.25 
                 23.3 
               
               
                 Molar Flow (kgmole/h) 
                 1.50E+04 
                 1.35E+04 
                 1490 
               
               
                 Mass Flow (kg/h) 
                 2.79E+05 
                 2.18E+05 
                 6.11E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 74.97 
                 28.2414 
                 46.7281 
               
               
                 Comp Molar Flow (Nitrogen) 
                 52.485 
                 52.485 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 13434.63 
                 13426.2129 
                 8.3599 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 788.685 
                 2.8332 
                 785.8545 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 356.85 
                 0 
                 356.8524 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 80.97 
                 0 
                 80.9703 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 98.955 
                 0 
                 98.9552 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 35.985 
                 0 
                 35.985 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 28.485 
                 0 
                 28.485 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 28.485 
                 0 
                 28.485 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 15 
                 0 
                 15 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 4.5 
                 0 
                 4.5 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                 Streams 
                   
                   
                   
                   
                   
               
               
                 Name 
                 1 
                 2 
                 2a 
                 2b 
                 2c 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0.9988 
                 0.9988 
                 0.8869 
               
               
                 Temperature (C) 
                 24 
                 24 
                 13.39 
                 13.4 
                 −48 
               
               
                 Pressure (bar_g) 
                 60.99 
                 60.99 
                 60.74 
                 60.74 
                 60.49 
               
               
                 Molar Flow (kgmole/h) 
                 6000 
                 9000 
                 9000 
                 9000 
                 9000 
               
               
                 Mass Flow (kg/h) 
                 1.12E+05 
                 1.68E+05 
                 1.68E+05 
                 1.68E+05 
                 1.68E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 29.988 
                 44.982 
                 44.982 
                 44.982 
                 44.982 
               
               
                 Comp Molar Flow (Nitrogen) 
                 20.994 
                 31.491 
                 31.491 
                 31.491 
                 31.491 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 5373.852 
                 8060.778 
                 8060.778 
                 8060.778 
                 8060.78 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 315.474 
                 473.211 
                 473.211 
                 473.211 
                 473.211 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 142.74 
                 214.11 
                 214.11 
                 214.11 
                 214.11 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 32.388 
                 48.582 
                 48.582 
                 48.582 
                 48.582 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 39.582 
                 59.373 
                 59.373 
                 59.373 
                 59.373 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 14.394 
                 21.591 
                 21.591 
                 21.591 
                 21.591 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 11.394 
                 17.091 
                 17.091 
                 17.091 
                 17.091 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 11.394 
                 17.091 
                 17.091 
                 17.091 
                 17.091 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 6 
                 9 
                 9 
                 9 
                 9 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 1.8 
                 2.7 
                 2.7 
                 2.7 
                 2.7 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 3 
                 4 
                 5 
                 8 
                 9 
               
               
                   
               
               
                 Vapor Fraction 
                 0.8869 
                 1 
                 0 
                 0.8952 
                 0.3773 
               
               
                 Temperature (C) 
                 −48 
                 −48 
                 −48 
                 −86.73 
                 −72.65 
               
               
                 Pressure (bar_g) 
                 60.49 
                 60.49 
                 60.49 
                 23.5 
                 23.5 
               
               
                 Molar Flow (kgmole/h) 
                 6000 
                 1.33E+04 
                 1696 
                 1.33E+04 
                 1696 
               
               
                 Mass Flow (kg/h) 
                 1.12E+05 
                 2.31E+05 
                 4.83E+04 
                 2.31E+05 
                 4.83E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 29.988 
                 62.5824 
                 12.3876 
                 62.5824 
                 12.3876 
               
               
                 Comp Molar Flow (Nitrogen) 
                 20.994 
                 50.8746 
                 1.6104 
                 50.8746 
                 1.6104 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 5373.852 
                 12392.7863 
                 1041.8437 
                 12392.7863 
                 1041.84 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 315.474 
                 572.3489 
                 216.3361 
                 572.3489 
                 216.336 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 142.74 
                 168.565 
                 188.285 
                 168.565 
                 188.285 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 32.388 
                 24.188 
                 56.782 
                 24.188 
                 56.782 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 39.582 
                 23.3842 
                 75.5708 
                 23.3842 
                 75.5708 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 14.394 
                 4.6984 
                 31.2866 
                 4.6984 
                 31.2866 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 11.394 
                 2.8893 
                 25.5957 
                 2.8893 
                 25.5957 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 11.394 
                 1.1815 
                 27.3035 
                 1.1815 
                 27.3035 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 6 
                 0.2541 
                 14.7459 
                 0.2541 
                 14.7459 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 1.8 
                 0.0309 
                 4.4691 
                 0.0309 
                 4.4691 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 10 
                 11 
                 17 
                 18 
                 26 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 0 
                 0 
                 1 
               
               
                 Temperature (C) 
                 89.95 
                 40 
                 −100.9 
                 −102.7 
                 111.1 
               
               
                 Pressure (bar_g) 
                 49.62 
                 49.12 
                 47.12 
                 23.5 
                 62.75 
               
               
                 Molar Flow (kgmole/h) 
                 4266 
                 4266 
                 4266 
                 4266 
                 1.35E+04 
               
               
                 Mass Flow (kg/h) 
                 6.89E+04 
                 6.89E+04 
                 6.89E+04 
                 6.89E+04 
                 2.18E+05 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 8.9185 
                 8.9185 
                 8.9185 
                 8.9185 
                 28.2414 
               
               
                 Comp Molar Flow (Nitrogen) 
                 16.5742 
                 16.5742 
                 16.5742 
                 16.5742 
                 52.485 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 4239.8566 
                 4239.8566 
                 4239.8566 
                 4239.8566 
                 13426.2 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 0.8948 
                 0.8948 
                 0.8948 
                 0.8948 
                 2.8332 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (1-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 20 
                 22 
                 23 
                 24 
                 25 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 1 
                 1 
                 1 
               
               
                 Temperature (C) 
                 −102.4 
                 −78.8 
                 16.5 
                 16.5 
                 16.5 
               
               
                 Pressure (bar_g) 
                 23 
                 22.5 
                 22 
                 22 
                 22 
               
               
                 Molar Flow (kgmole/h) 
                 1.78E+04 
                 1.78E+04 
                 1.78E+04 
                 1.35E+04 
                 4266 
               
               
                 Mass Flow (kg/h) 
                 2.87E+05 
                 2.87E+05 
                 2.87E+05 
                 2.18E+05 
                 6.89E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 37.1597 
                 37.1597 
                 37.1597 
                 28.2414 
                 8.9183 
               
               
                 Comp Molar Flow (Nitrogen) 
                 69.0592 
                 69.0592 
                 69.0592 
                 52.485 
                 16.5742 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 17666.0696 
                 17666.0696 
                 17666.07 
                 13426.2129 
                 4239.86 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 3.7279 
                 3.7279 
                 3.7279 
                 2.8332 
                 0.8947 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 (kgmole/h) 
               
               
                   
               
               
                 Name 
                 40 
                 41 
                 50 
                 51 
                 61 
               
               
                   
               
               
                 Vapor Fraction 
                 0 
                 0.328 
                 0 
                 0.2707 
                 0.3352 
               
               
                 Temperature (C) 
                 −75 
                 −55.77 
                 −45.98 
                 −18.53 
                 22.33 
               
               
                 Pressure (bar_g) 
                 23.13 
                 23.13 
                 23.18 
                 22.68 
                 23.3 
               
               
                 Molar Flow (kgmole/h) 
                 2328 
                 2328 
                 2588 
                 2588 
                 2241 
               
               
                 Mass Flow (kg/h) 
                 6.15E+04 
                 6.15E+04 
                 8.78E+04 
                 8.78E+04 
                 8.63E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 140.4386 
                 140.4386 
                 124.2694 
                 124.2694 
                 112.994 
               
               
                 Comp Molar Flow (Nitrogen) 
                 0.1684 
                 0.1684 
                 0.0375 
                 0.0375 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 1056.9381 
                 1056.9381 
                 592.654 
                 592.654 
                 30.6022 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 891.3219 
                 891.3219 
                 1174.824 
                 1174.824 
                 1333.21 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 181.9147 
                 181.9147 
                 396.9861 
                 396.9861 
                 448.953 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 24.7162 
                 24.7162 
                 84.3247 
                 84.3247 
                 91.238 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 23.6782 
                 23.6782 
                 101.7059 
                 101.7059 
                 108.56 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 4.7098 
                 4.7098 
                 36.3345 
                 36.3345 
                 37.7058 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 2.8917 
                 2.8917 
                 28.6701 
                 28.6701 
                 29.5777 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 1.1797 
                 1.1797 
                 28.5025 
                 28.5025 
                 28.9329 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0.2536 
                 0.2536 
                 14.9831 
                 14.9831 
                 15.1001 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0.0308 
                 0.0308 
                 4.4925 
                 4.4925 
                 4.5129 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                   
                   
                   
                   
                 Btm-Reb- 
               
               
                 Name 
                 70 
                 71 
                 72 
                 Feed 
               
               
                   
               
               
                 Vapor Fraction 
                 1 
                 1 
                 1 
                 0 
               
               
                 Temperature (C) 
                 14 
                 −44.48 
                 −73.5 
                 11.45 
               
               
                 Pressure (bar_g) 
                 48.62 
                 48.12 
                 47.62 
                 23.3 
               
               
                 Molar Flow (kgmole/h) 
                 4266 
                 4266 
                 4266 
                 2241 
               
               
                 Mass Flow (kg/h) 
                 6.89E+04 
                 6.89E+04 
                 6.89E+04 
                 8.63E+04 
               
               
                 Comp Molar Flow (CO2) (kgmole/h) 
                 8.9185 
                 8.9185 
                 8.9185 
                 112.994 
               
               
                 Comp Molar Flow (Nitrogen) 
                 16.5742 
                 16.5742 
                 16.5742 
                 0 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Methane) 
                 4239.8566 
                 4239.8566 
                 4239.8566 
                 30.6022 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Ethane) 
                 0.8948 
                 0.8948 
                 0.8948 
                 1333.2093 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (Propane) 
                 0 
                 0 
                 0 
                 448.953 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Butane) 
                 0 
                 0 
                 0 
                 91.238 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Butane) 
                 0 
                 0 
                 0 
                 108.5602 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (i-Pentane) 
                 0 
                 0 
                 0 
                 37.7058 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Pentane) 
                 0 
                 0 
                 0 
                 29.5777 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Hexane) 
                 0 
                 0 
                 0 
                 28.9329 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Heptane) 
                 0 
                 0 
                 0 
                 15.1001 
               
               
                 (kgmole/h) 
               
               
                 Comp Molar Flow (n-Octane) 
                 0 
                 0 
                 0 
                 4.5129 
               
               
                 (kgmole/h) 
               
               
                   
               
             
          
           
               
                 LNGs 
                   
                   
                   
                   
                   
               
               
                 Name 
                 LNG-100 
                 LNG-101 
                 LNG-102 
                 LNG-103 
                 LNG-104 
               
               
                   
               
               
                 Number of Sides 
                 3 
                 2 
                 2 
                 2 
                 3 
               
               
                 LMTD (C) 
                 7.66 
                 5.639 
                 3.877 
                 8.786 
                 3.943 
               
               
                 UA (Calculated) (kJ/C-h) 
                 8.71E+06 
                 3.72E+06 
                 2.00E+06 
                 1.26E+06 
                 2.40E+06 
               
               
                 Hot Pinch Temperature (C) 
                 13.4 
                 −100.9 
                 −73.5 
                 −44.48 
                 13.39 
               
               
                 Cold Pinch Temperature (C) 
                 11.67 
                 −102.4 
                 −75 
                 −45.98 
                 11.45 
               
               
                 Exchanger Cold Duty (kW) 
                 1.85E+04 
                 5819 
                 2151 
                 3082 
                 2625 
               
               
                 Minimum Approach (C) 
                 1.721 
                 1.5 
                 1.5 
                 1.5 
                 1.947 
               
               
                   
               
             
          
           
               
                 Air coolers 
                   
                   
               
               
                 Name 
                 AC-100 
                 AC-101 
               
               
                   
               
               
                 Duty (kW) 
                 −2456 
                 −1.14E+04 
               
               
                   
               
               
                 Compressors 
               
               
                 Name 
                 K-101 
                 K-102 
               
               
                   
               
               
                 Adiabatic Efficiency 
                 78 
                 80 
               
               
                 Volume Flow (m3/h) 
                 228.3 
                 723 
               
               
                 Polytropic Efficiency 
                 80 
                 82 
               
               
                 Capacity (act feed vol flow) 
                 4224 
                 1.34E+04 
               
               
                 (ACT_m3/h) 
               
               
                 Polytropic Head (m) 
                 1.28E+04 
                 1.70E+04 
               
               
                 Adiabatic Head (m) 
                 1.25E+04 
                 1.66E+04 
               
               
                 Feed Pressure (bar_g) 
                 22 
                 22 
               
               
                 Product Pressure (bar_g) 
                 49.62 
                 62.75 
               
               
                 Feed Temperature (C) 
                 16.5 
                 16.5 
               
               
                 Product Temperature (C) 
                 89.95 
                 111.1 
               
               
                 Capacity (act feed vol flow) 
                 4224 
                 1.34E+04 
               
               
                 (ACT_m3/h) 
               
               
                 Energy (kW) 
                 2998 
                 1.23E+04 
               
               
                   
               
             
          
           
               
                 Expanders 
                   
               
               
                 Name 
                 K-100 
               
               
                   
               
               
                 Feed Pressure (bar_g) 
                 60.49 
               
               
                 Product Pressure (bar_g) 
                 23.5 
               
               
                 Feed Temperature (C) 
                 −48 
               
               
                 Product Temperature (C) 
                 −86.73 
               
               
                 Energy (kW) 
                 2998 
               
               
                 Adiabatic Efficiency 
                 85 
               
               
                   
               
               
                 Reboiled Absorbers 
               
               
                 Name 
                 T-101 
               
               
                   
               
               
                 Number of Trays 
                 25 
               
               
                   
               
               
                 Separators 
               
               
                 Name 
                 V-100 
               
               
                   
               
               
                 Vessel Temperature (C) 
                 −48 
               
               
                 Vessel Pressure (bar_g) 
                 60.49 
               
               
                 Vessel Diameter (m) 
                 1.981 
               
               
                 Vessel Length or Height (m) 
                 6.934 
               
               
                   
               
             
          
         
       
     
     
       
         
               
             
               
               
               
               
               
               
             
               
               
               
               
             
           
               
                 TABLE 4 
               
               
                   
               
               
                 Case 4 - “HHH” Process for Propane Recovery 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 Streams 
                   
                   
                   
                   
                   
               
               
                 Name 
                 1 
                 2 
                 3 
                 4 
                 5 
               
               
                   
               
               
                 Temperature (C) 
                 30 
                 −42 
                 −42 
                 −42 
                 −66.4 
               
               
                 Pressure (bar_g) 
                 66.69 
                 64.72 
                 64.72 
                 64.72 
                 37.3 
               
               
                 Molar Flow (MMSCFD) 
                 1100 
                 1100 
                 1033 
                 67.07 
                 1033 
               
               
                 Mass Flow (kg/h) 
                 1.01E+06 
                 1.01E+06 
                 9.13E+05 
                 9.27E+04 
                 9.13E+05 
               
               
                 Actual Volume Flow (m3/h) 
                 1.71E+04 
                 8852 
                 8627 
                 225.4 
                 1.45E+04 
               
               
                 Heat Flow (kcal/h) 
                 −1.06E+09  
                 −1.11E+09  
                 −1.03E+09  
                 −8.37E+07  
                 −1.04E+09  
               
               
                 Molecular Weight 
                 18.36 
                 18.36 
                 17.75 
                 27.76 
                 17.75 
               
               
                 Comp Mass Flow (Nitrogen) (kg/h) 
                 1227.6782 
                 1227.6782 
                 1205.9044 
                 21.7737 
                 1205.9044 
               
               
                 Comp Mass Flow (CO2) (kg/h) 
                 18323.012 
                 18323.012 
                 16771.4786 
                 1551.5334 
                 16771.4786 
               
               
                 Comp Mass Flow (Methane) (kg/h) 
                 789124.7999 
                 789124.7999 
                 756327.1616 
                 32797.6383 
                 756327.162 
               
               
                 Comp Mass Flow (Ethane) (kg/h) 
                 93400.6622 
                 93400.6622 
                 80000.5179 
                 13400.1443 
                 80000.5179 
               
               
                 Comp Mass Flow (Propane) (kg/h) 
                 58460.0677 
                 58460.0677 
                 40476.5553 
                 17983.5124 
                 40476.5553 
               
               
                 Comp Mass Flow (i-Butane) (kg/h) 
                 14646.9866 
                 14646.9866 
                 7839.433 
                 6807.5535 
                 7839.433 
               
               
                 Comp Mass Flow (n-Butane) (kg/h) 
                 14965.3957 
                 14965.3957 
                 6941.1765 
                 8024.2191 
                 6941.1765 
               
               
                 Comp Mass Flow (i-Pentane) (kg/h) 
                 6324.0785 
                 6324.0785 
                 1962.2073 
                 4361.8712 
                 1962.2073 
               
               
                 Comp Mass Flow (n-Pentane) (kg/h) 
                 3557.2969 
                 3557.2969 
                 920.6113 
                 2636.6855 
                 920.6113 
               
               
                 Comp Mass Flow (n-Hexane) (kg/h) 
                 2832.5815 
                 2832.5815 
                 363.7525 
                 2468.829 
                 363.7525 
               
               
                 Comp Mass Flow (n-Heptane) (kg/h) 
                 2195.7521 
                 2195.7521 
                 132.7129 
                 2063.0392 
                 132.7129 
               
               
                 Comp Mass Flow (n-Octane) (kg/h) 
                 625.7858 
                 625.7858 
                 17.1973 
                 608.5885 
                 17.1973 
               
               
                 Comp Mass Flow (H2S) (kg/h) 
                 9.8548 
                 9.8548 
                 8.3504 
                 1.5044 
                 8.3504 
               
               
                 Comp Mass Flow (M-Mercaptan) 
                 19.4303 
                 19.4303 
                 11.194 
                 8.2363 
                 11.194 
               
               
                 (kg/h) 
               
               
                   
               
               
                 Name 
                 6 
                 7 
                 9 
                 11 
                 12 
               
               
                   
               
               
                 Temperature (C) 
                 −72.73 
                 −67.72 
                 30 
                 −51.53 
                 −29.08 
               
               
                 Pressure (bar_g) 
                 37 
                 37.3 
                 66.69 
                 20.66 
                 20.31 
               
               
                 Molar Flow (MMSCFD) 
                 1049 
                 154.8 
                 1100 
                 154.8 
                 154.8 
               
               
                 Mass Flow (kg/h) 
                 8.92E+05 
                 1.89E+05 
                 1.01E+06 
                 1.89E+05 
                 1.89E+05 
               
               
                 Actual Volume Flow (m3/h) 
                 1.43E+04 
                 448.1 
                 1.71E+04 
                 3569 
                 5007 
               
               
                 Heat Flow (kcal/h) 
                 −1.04E+09  
                 −1.87E+08  
                 −1.06E+09  
                 −1.78E+08  
                 −1.73E+08  
               
               
                 Molecular Weight 
                 17.07 
                 24.53 
                 18.36 
                 24.53 
                 24.53 
               
               
                 Comp Mass Flow (Nitrogen) (kg/h) 
                 1224.397 
                 36.36 
                 1227.6782 
                 36.36 
                 36.36 
               
               
                 Comp Mass Flow (CO2) (kg/h) 
                 17957.5704 
                 4923.5438 
                 18323.012 
                 4923.5438 
                 4923.5438 
               
               
                 Comp Mass Flow (Methane) (kg/h) 
                 782994.1137 
                 75829.0309 
                 789124.7999 
                 75829.0309 
                 75829.0309 
               
               
                 Comp Mass Flow (Ethane) (kg/h) 
                 89454.28 
                 49638.7719 
                 93400.6622 
                 49638.7719 
                 49638.7719 
               
               
                 Comp Mass Flow (Propane) (kg/h) 
                 209.5012 
                 40487.6072 
                 58460.0677 
                 40487.6072 
                 40487.6072 
               
               
                 Comp Mass Flow (i-Butane) (kg/h) 
                 0.0967 
                 7839.3923 
                 14646.9866 
                 7839.3923 
                 7839.3923 
               
               
                 Comp Mass Flow (n-Butane) (kg/h) 
                 0.0086 
                 6941.1716 
                 14965.3957 
                 6941.1716 
                 6941.1716 
               
               
                 Comp Mass Flow (i-Pentane) (kg/h) 
                 0 
                 1962.2073 
                 6324.0785 
                 1962.2073 
                 1962.2073 
               
               
                 Comp Mass Flow (n-Pentane) (kg/h) 
                 0 
                 920.6113 
                 3557.2969 
                 920.6113 
                 920.6113 
               
               
                 Comp Mass Flow (n-Hexane) (kg/h) 
                 0 
                 363.7525 
                 2832.5815 
                 363.7525 
                 363.7525 
               
               
                 Comp Mass Flow (n-Heptane) (kg/h) 
                 0 
                 132.7129 
                 2195.7521 
                 132.7129 
                 132.7129 
               
               
                 Comp Mass Flow (n-Octane) (kg/h) 
                 0 
                 17.1973 
                 625.7858 
                 17.1973 
                 17.1973 
               
               
                 Comp Mass Flow (H2S) (kg/h) 
                 9.437 
                 4.8277 
                 9.8548 
                 4.8277 
                 4.8277 
               
               
                 Comp Mass Flow (M-Mercaptan) 
                 0.0018 
                 11.1933 
                 19.4303 
                 11.1933 
                 11.1933 
               
               
                 (kg/h) 
               
               
                   
               
               
                 Name 
                 13 
                 14 
                 15 
                 16 
                 17 
               
               
                   
               
               
                 Temperature (C) 
                 29.5 
                 −43.45 
                 −57.35 
                 −57.35 
                 73.52 
               
               
                 Pressure (bar_g) 
                 20.31 
                 18.34 
                 18.34 
                 18 
                 19 
               
               
                 Molar Flow (MMSCFD) 
                 67.07 
                 245.7 
                 245.7 
                 180.9 
                 40.99 
               
               
                 Mass Flow (kg/h) 
                 9.27E+04 
                 2.66E+05 
                 2.66E+05 
                 1.78E+05 
                 1.04E+05 
               
               
                 Actual Volume Flow (m3/h) 
                 3268 
                 9837 
                 6972 
                 6997 
                 228 
               
               
                 Heat Flow (kcal/h) 
                 −7.46E+07  
                 −2.56E+08  
                 −2.66E+08  
                 −1.86E+08  
                 −6.21E+07  
               
               
                 Molecular Weight 
                 27.76 
                 21.75 
                 21.75 
                 19.76 
                 50.85 
               
               
                 Comp Mass Flow (Nitrogen) (kg/h) 
                 21.7737 
                 59.6622 
                 59.6622 
                 58.1337 
                 0 
               
               
                 Comp Mass Flow (CO2) (kg/h) 
                 1551.5334 
                 8980.0955 
                 8980.0955 
                 6475.0479 
                 0.0293 
               
               
                 Comp Mass Flow (Methane) (kg/h) 
                 32797.6383 
                 120381.7547 
                 120381.7547 
                 108626.666 
                 0.0028 
               
               
                 Comp Mass Flow (Ethane) (kg/h) 
                 13400.1443 
                 134914.0579 
                 134914.0579 
                 62626.1396 
                 412.7767 
               
               
                 Comp Mass Flow (Prapane) (kg/h) 
                 17983.5124 
                 1749.1969 
                 1749.1969 
                 234.0551 
                 58237.0645 
               
               
                 Comp Mass Flow (i-Butane) (kg/h) 
                 6807.5535 
                 1.3432 
                 1.3432 
                 0.0593 
                 14646.8865 
               
               
                 Comp Mass Flow (n-Butane) (kg/h) 
                 8024.2191 
                 0.1383 
                 0.1383 
                 0.0038 
                 14965.3869 
               
               
                 Comp Mass Flow (i-Pentane) (kg/h) 
                 4361.8712 
                 0.0002 
                 0.0002 
                 0 
                 6324.0785 
               
               
                 Comp Mass Flow (n-Pentane) (kg/h) 
                 2636.6855 
                 0 
                 0 
                 0 
                 3557.2969 
               
               
                 Comp Mass Flow (n-Hexane) (kg/h) 
                 2468.829 
                 0 
                 0 
                 0 
                 2832.5815 
               
               
                 Comp Mass Flow (n-Heptane) (kg/h) 
                 2063.0392 
                 0 
                 0 
                 0 
                 2195.7521 
               
               
                 Comp Mass Flow (n-Octane) (kg/h) 
                 608.5885 
                 0 
                 0 
                 0 
                 625.7858 
               
               
                 Comp Mass Flow (H2S) (kg/h) 
                 1.5044 
                 12.828 
                 12.828 
                 6.268 
                 0.064 
               
               
                 Comp Mass Flow (M-Mercaptan) 
                 8.2363 
                 0.016 
                 0.016 
                 0.0011 
                 19.4285 
               
               
                 (kg/h) 
               
               
                   
               
               
                 Name 
                 18 
                 19 
                 20 
                 21 
                 22 
               
               
                   
               
               
                 Temperature (C) 
                 −57.35 
                 −57.16 
                 67.38 
                 73.52 
                 38 
               
               
                 Pressure (bar_g) 
                 18 
                 20 
                 19 
                 19 
                 17.79 
               
               
                 Molar Flow (MMSCFD) 
                 64.82 
                 64.82 
                 97.83 
                 56.84 
                 180.9 
               
               
                 Mass Flow (kg/h) 
                 8.81E+04 
                 8.81E+04 
                 2.37E+05 
                 1.33E+05 
                 1.78E+05 
               
               
                 Actual Volume Flow (m3/h) 
                 188.8 
                 188.9 
                 526 
                 2877 
                 1.17E+04 
               
               
                 Heat Flow (kcal/h) 
                 −8.00E+07  
                 −8.00E+07  
                 −1.44E+08  
                 −7.28E+07  
                 −1.77E+08  
               
               
                 Molecular Weight 
                 27.28 
                 27.28 
                 48.56 
                 46.9 
                 19.76 
               
               
                 Comp Mass Flow (Nitrogen) (kg/h) 
                 1.5285 
                 1.5285 
                 0 
                 0 
                 58.1333 
               
               
                 Comp Mass Flow (CO2) (kg/h) 
                 2505.0476 
                 2505.0476 
                 0.2175 
                 0.1882 
                 6475.063 
               
               
                 Comp Mass Flow (Methane) (kg/h) 
                 11755.0883 
                 11755.0883 
                 0.0304 
                 0.0276 
                 108626.438 
               
               
                 Comp Mass Flow (Ethane) (kg/h) 
                 72287.9184 
                 72287.9184 
                 1895.5012 
                 1482.7245 
                 62626.9568 
               
               
                 Comp Mass Flow (Prapane) (kg/h) 
                 1515.1417 
                 1515.1417 
                 157458.7296 
                 99221.6651 
                 233.7447 
               
               
                 Comp Mass Flow (i-Butane) (kg/h) 
                 1.2839 
                 1.2839 
                 29148.445 
                 14501.5585 
                 0.0593 
               
               
                 Comp Mass Flow (n-Butane) (kg/h) 
                 0.1345 
                 0.1345 
                 27197.8289 
                 12232.442 
                 0.0038 
               
               
                 Comp Mass Flow (i-Pentane) (kg/h) 
                 0.0002 
                 0.0002 
                 9314.2237 
                 2990.1452 
                 0 
               
               
                 Comp Mass Flow (n-Pentane) (kg/h) 
                 0 
                 0 
                 5007.102 
                 1449.8051 
                 0 
               
               
                 Comp Mass Flow (n-Hexane) (kg/h) 
                 0 
                 0 
                 3421.9242 
                 589.3427 
                 0 
               
               
                 Comp Mass Flow (n-Heptane) (kg/h) 
                 0 
                 0 
                 2435.4061 
                 239.654 
                 0 
               
               
                 Comp Mass Flow (n-Octane) (kg/h) 
                 0 
                 0 
                 661.9771 
                 36.1913 
                 0 
               
               
                 Comp Mass Flow (H2S) (kg/h) 
                 6.56 
                 6.56 
                 0.2839 
                 0.2199 
                 6.268 
               
               
                 Comp Mass Flow (M-Mercaptan) 
                 0.0149 
                 0.0149 
                 43.5333 
                 24.1048 
                 0.0011 
               
               
                 (kg/h) 
               
               
                   
               
               
                 Name 
                 23 
                 24 
                 25 
                 26 
                 27 
               
               
                   
               
               
                 Temperature (C) 
                 107.6 
                 48.89 
                 −71.5 
                 −73.15 
                 −55.12 
               
               
                 Pressure (bar_g) 
                 39.59 
                 39.25 
                 39.04 
                 37.1 
                 36.79 
               
               
                 Molar Flow (MMSCFD) 
                 180.9 
                 180.9 
                 170.7 
                 170.7 
                 1049 
               
               
                 Mass Flow (kg/h) 
                 1.78E+05 
                 1.78E+05 
                 1.68E+05 
                 1.68E+05 
                 8.92E+05 
               
               
                 Actual Volume Flow (m3/h) 
                 6648 
                 5396 
                 695.1 
                 764.1 
                 1.85E+04 
               
               
                 Heat Flow (kcal/h) 
                 −1.71E+08  
                 −1.77E+08  
                 −1.89E+08  
                 −1.89E+08  
                 −1.03E+09  
               
               
                 Molecular Weight 
                 19.76 
                 19.76 
                 19.76 
                 19.76 
                 17.07 
               
               
                 Comp Mass Flow (Nitrogen) (kg/h) 
                 58.1333 
                 58.1333 
                 54.8525 
                 54.8525 
                 1224.397 
               
               
                 Comp Mass Flow (CO2) (kg/h) 
                 6475.063 
                 6475.063 
                 6109.6356 
                 6109.6356 
                 17957.5704 
               
               
                 Comp Mass Flow (Methane) (kg/h) 
                 108626.4383 
                 108626.4383 
                 102495.9829 
                 102495.983 
                 782994.114 
               
               
                 Comp Mass Flow (Ethane) (kg/h) 
                 62626.9568 
                 62626.9568 
                 59092.534 
                 59092.534 
                 89454.28 
               
               
                 Comp Mass Flow (Propane) (kg/h) 
                 233.7447 
                 233.7447 
                 220.5531 
                 220.5531 
                 209.5012 
               
               
                 Comp Mass Flow (i-Butane) (kg/h) 
                 0.0593 
                 0.0593 
                 0.056 
                 0.056 
                 0.0967 
               
               
                 Comp Mass Flow (n-Butane) (kg/h) 
                 0.0038 
                 0.0038 
                 0.0036 
                 0.0036 
                 0.0086 
               
               
                 Comp Mass Flow (i-Pentane) (kg/h) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Pentane) (kg/h) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Hexane) (kg/h) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Heptane) (kg/h) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Octane) (kg/h) 
                 0 
                 0 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (H2S) (kg/h) 
                 6.268 
                 6.268 
                 5.9143 
                 5.9143 
                 9.437 
               
               
                 Comp Mass Flow (M-Mercaptan) 
                 0.0011 
                 0.0011 
                 0.001 
                 0.001 
                 0.0018 
               
               
                 (kg/h) 
               
               
                   
               
             
          
           
               
                 Name 
                 28 
                 29 
                 30 
               
               
                   
               
               
                 Temperature (C) 
                 26.8 
                 88.56 
                 48.99 
               
               
                 Pressure (bar_g) 
                 36.59 
                 70.88 
                 70.1 
               
               
                 Molar Flow (MMSCFD) 
                 1049 
                 1049 
                 1049 
               
               
                 Mass Flow (kg/h) 
                 8.92E+05 
                 8.92E+05 
                 8.92E+05 
               
               
                 Actual Volume Flow (m3/h) 
                 3.17E+04 
                 2.03E+04 
                 1.74E+04 
               
               
                 Heat Flow (kcal/h) 
                 −9.81E+08  
                 −9.54E+08  
                 −9.77E+08  
               
               
                 Molecular Weight 
                 17.07 
                 17.07 
                 17.07 
               
               
                 Comp Mass Flow (Nitrogen) (kg/h) 
                 1224.397 
                 1224.397 
                 1224.397 
               
               
                 Comp Mass Flow (CO2) (kg/h) 
                 17957.5704 
                 17957.5704 
                 17957.5704 
               
               
                 Comp Mass Flow (Methane) (kg/h) 
                 782994.1137 
                 782994.1137 
                 782994.1137 
               
               
                 Comp Mass Flow (Ethane) (kg/h) 
                 89454.28 
                 89454.28 
                 89454.28 
               
               
                 Comp Mass Flow (Propane) (kg/h) 
                 209.5012 
                 209.5012 
                 209.5012 
               
               
                 Comp Mass Flow (i-Butane) (kg/h) 
                 0.0967 
                 0.0967 
                 0.0967 
               
               
                 Comp Mass Flow (n-Butane) (kg/h) 
                 0.0086 
                 0.0086 
                 0.0086 
               
               
                 Comp Mass Flow (i-Pentane) (kg/h) 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Pentane) (kg/h) 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Hexane) (kg/h) 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Heptane) (kg/h) 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (n-Octane) (kg/h) 
                 0 
                 0 
                 0 
               
               
                 Comp Mass Flow (H2S) (kg/h) 
                 9.437 
                 9.437 
                 9.437 
               
               
                 Comp Mass Flow (M-Mercaptan) 
                 0.0018 
                 0.0018 
                 0.0018 
               
               
                 (kg/h)
The present invention relates to methods for separating and recovering ethane, propane and heavier components from a feed gas, e.g. raw natural gas or a refinery or petroleum plant gas stream or a petrochemical plant gas stream. These methods employ a common new concept which is the use of the turbo-expander shaft compressor to generate the reflux requirement for the cryogenic absorber or distillation columns. The power of the turbo-expander which is absorbed by the shaft compressor is always high enough so that reflux generation by a specific gas compression through the expander shaft compressor and subsequent cooling, condensation and sub-cooling can always be easily maintained. The present invention allows for higher cryogenic absorber pressure and a lower demethanizer/de-ethanizer column pressure thus eliminating the common cryogenic pump at absorber bottom. The present invention ultimately results in a lower residue compression and utilities consumption. The present invention as such allows for a higher 99+% recovery of NGL from the feed gas stream.