The method 1 wherein said carbon dioxide stream containing carbonyl sulfide and reduced amounts of hydrogen, carbon monoxide, and methane is further fractionated to remove {HEAD ~ said carbonyl sulfide} thereby leaving {TAIL ~ a substantially pure carbon dioxide stream} 
leaving
The method 1 wherein said carbon dioxide stream containing carbonyl sulfide and reduced amounts of hydrogen , carbon monoxide , and methane is further fractionated to remove { HEAD ~ said carbonyl sulfide } thereby leaving { TAIL ~ a substantially pure carbon dioxide stream }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL