Process for purifying an acid gas containing gaseous...

Details Process for purifying an acid gas containing gaseous... Process for purifying an acid gas containing gaseous...

B - Operations, Transporting

01

D

165/2, 23/341

B01D 53/34 (2006.01) B01D 53/14 (2006.01) C07C 7/11 (2006.01)

Patent

CA 1070483

A B S T R A C T A process for purifying an acid gas-containing, gaseous hydrocarbon stream, which comprises (a) contacting the acid gas-containing, gaseous hydrocarbon stream with an acid gas-absorbing liquid in a scrubbing zone, thereby producing (i) a hydrocarbon-rich overhead stream and (ii) a hydrocarbon-containing, acid gas-rich absorbate stream which is routed to the top of a stripping zone, and (b) stripping the hydrocarbon-containing, acid gas-rich absorbate stream in said stripping zone thereby producing (i) an acid gas-lean, hydro- carbon-rich overhead stream, (ii) a hydrocarbon-lean, acid gas-rich stream taken at a point intermediate between the point at which the hydrocarbon-containing, acid gas-rich absorbate stream enters the stripping zone and the bottom of the stripping zone, and (iii) a lean absorbate bottoms stream which is recycled to said scrubbing zone as said acid gas-absorbing liquid.

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