摘要 |
An NGL recovery plant includes a demethanizer ( 7 ) in which internally generated and subcooled lean oil absorbs CO<SUB>2 </SUB>and C<SUB>2 </SUB>from a gas stream ( 11 ), thereby preventing build-up and freezing problems associated with CO<SUB>2</SUB>, especially where the feed gas has a CO<SUB>2 </SUB>treatment at ethane recoveries above 90% and propane recoveries of at least 99%. |