Patent ID: 8784535
Filing Date: 2014-07-22
Classification: B01D,B01J,C01B,C10L,Y02C,Y02P,Y10T

Abstract:
1. A process for the separation of C 2+ hydrocarbons from a natural gas stream, which process comprises: a) subjecting said natural gas stream to an adsorption step by introducing it into the feed input end of an adsorbent bed selective for adsorbing said C b) stopping the introduction of said natural gas stream; c) depressurizing said adsorption bed to a second pressure lower than said first pressure; d) externally heating said depressurized adsorbent bed to a second temperature greater than said first temperature, thereby causing at least a fraction of the adsorbed C e) counter-currently flowing through said heated adsorbent bed a first purge gas stream at a third pressure; and f) recovering a C wherein a second purge gas stream is passed co-currently through the adsorption bed following depressurization step (c) and prior to heating step (d).