The gaseous product stream is contacted with {TAIL ~ an absorbent} to produce {HEAD ~ a gas effluent} and a liquid effluent 
The gaseous product stream is contacted with { TAIL ~ an absorbent } to produce { HEAD ~ a gas effluent } and a liquid effluent
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH