Process and apparatus for separating a gaseous mixture

Details Process and apparatus for separating a gaseous mixture Process and apparatus for separating a gaseous mixture

1998-07-22

2000-07-04

Capossela, Ronald

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62631, 62920, 62932, F25J 100

Patent

active

060821345

ABSTRACT:
Hydrogen (4), and carbon monoxide (21) are separated from a gaseous mixture thereof, typically a mixture of essentially hydrogen, carbon monoxide and methane (1) using liquid methane (3) to dissolve carbon monoxide in a methane wash column (2), removing (8) residual hydrogen (15) from the loaded methane wash (6,9), and separating (18) the residual loaded methane into carbon monoxide and methane fractions (21,22). The residual hydrogen (15) is removed in a hydrogen stripping column (8), said column being refluxed with a methane rich scrubbing liquid stream (13) withdrawn from an intermediate location of the methane wash column (2).

REFERENCES:
patent: 3813889 (1974-06-01), Allam et al.
patent: 4478621 (1984-10-01), Fabian
patent: 4888035 (1989-12-01), Bauer
patent: 5295356 (1994-03-01), Billy
patent: 5592831 (1997-01-01), Bauer et al.

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