Propane recovery methods and configurations

Details Propane recovery methods and configurations Propane recovery methods and configurations

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/06 (2006.01) C10L 3/10 (2006.01) F25J 3/02 (2006.01)

Patent

CA 2654998

High-pressure feed gas is chilled and expanded to condense a portion of the feed gas into a C2+ enriched liquid phase and a C2+ depleted vapor phase. The liquid phase is expanded to provide additional cooling for the feed gas and deethanizer reflux prior to being fed to the deethanizer while the vapor is combined with residue gas of a deethanizer.

Dans la présente invention, un gaz d'alimentation à haute pression est réfrigéré et détendu pour condenser une partie du gaz d'alimentation sous forme d'une phase liquide enrichie en C2+ et d'une phase vapeur appauvrie en C2+. La phase liquide est détendue pour assurer le refroidissement supplémentaire du gaz d'alimentation et du reflux du déséthaniseur avant d'être introduite dans le déséthaniseur alors que la vapeur est combinée au gaz résiduaire d'un déséthaniseur.

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