{HEAD ~ The combined low and medium pressure} off {TAIL ~ gas stream} is contacted with the high pressure liquid in the high pressure flash zone 
off
{ HEAD ~ The combined low and medium pressure } off { TAIL ~ gas stream } is contacted with the high pressure liquid in the high pressure flash zone
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH