Process for separation of hydrocarbon gases

Details Process for separation of hydrocarbon gases Process for separation of hydrocarbon gases

F - Mech Eng,Light,Heat,Weapons

25

J

162/116

F25J 3/06 (2006.01) C07C 7/09 (2006.01) F25J 3/02 (2006.01)

Patent

CA 1298539

ABSTRACT A process for separation of a high pressure gas stream such as refinery gas in which the starting gas mixture is cooled and separated into a first vapor portion and a first liquid portion which is expanded to an intermediate pressure. The first vapor portion is further cooled and separated into a second vapor por- tion which may be further processed for ultimate recovery of, for example, a methane-rich product gas and a second liquid portion which is expanded to essentially the same intermediate pressure and combined with the expanded first liquid portion. The result- ing mixed intermediate pressure stream or a portion thereof is then employed as refrigerant.

551139

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