The process uses a lean solvent to absorb {HEAD ~ the non rejected components} in a recovery zone of an absorber and uses a portion of {TAIL ~ the off gas} from the flashing zone to purify the rich solvent in a purification zone of the absorber 
The process uses a lean solvent to absorb { HEAD ~ the non rejected components } in a recovery zone of an absorber and uses a portion of { TAIL ~ the off gas } from the flashing zone to purify the rich solvent in a purification zone of the absorber
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH