If the coke gasification apparatus 6 is omitted, {HEAD ~ the apparatus} 7 for cooling solids then serves for {TAIL ~ the coke cooling} and the coke is then collected in the container 8 
serves for
If the coke gasification apparatus 6 is omitted , { HEAD ~ the apparatus } 7 for cooling solids then serves for { TAIL ~ the coke cooling } and the coke is then collected in the container 8
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH