Process and apparatus for separation of a gaseous mixture

Details Process and apparatus for separation of a gaseous mixture Process and apparatus for separation of a gaseous mixture

1988-11-23

1989-12-19

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

55 68, 62 24, F25J 300

Patent

active

048880353

ABSTRACT:
The disclosure relates to a process as well as an apparatus for the separation of a gaseous mixture containing essentially hydrogen, methane and carbon monoxide, wherein the gaseous mixture is subjected to a physical low-temperature scrubbing step with liquid methane, as well as to subsequent separation of H.sub.2 from the loaded methane by means of stripping and/or expansion and subsequent regeneration of the loaded methane by CO/CH.sub.4 separation. In order to minimize the losses of CO, encountered during H.sub.2 separation and/or in order to raise the yield of CO, the H.sub.2 gas obtained during the stripping and/or expansion step is brought into contact with liquid methane.

REFERENCES:
patent: 4462814 (1984-07-01), Holmes et al.
patent: 4563202 (1986-01-01), Yao et al.
patent: 4654062 (1987-03-01), Gottier
patent: 4692179 (1987-09-01), Mehra
patent: 4696688 (1987-09-01), Mehra
R. Fabian, "Present State of Cryogenic H.sub.2 /CO Separation", Linde Reports on Science and Technology, 38/1984, pp. 37-41.

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