Recovery of carbon dioxide from a carbon dioxide plant vent gas

Details Recovery of carbon dioxide from a carbon dioxide plant vent gas Recovery of carbon dioxide from a carbon dioxide plant vent gas

1989-07-17

1991-02-05

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

55 16, 55158, F25J 302

Patent

active

049901680

ABSTRACT:
A process for recovering CO.sub.2 from a CO.sub.2 liquifaction plant vent gas, which comprises feeding vent gas from a CO.sub.2 liquifaction plant to a first semi-permeable gas separation membrane through which and at a pressure at which CO.sub.2 is capable of diffusing therethrough, to form a CO.sub.2 -enriched permeate, and then returning the CO.sub.2 -enriched permeate to a feed side of said CO.sub.2 liquifaction plant at a pressure capable of effecting the same.

REFERENCES:
patent: 4130403 (1978-12-01), Cooley et al.
patent: 4466946 (1984-08-01), Goddin, Jr. et al.
patent: 4492593 (1985-01-01), Diaz
patent: 4602477 (1986-07-01), Lucadamo
patent: 4639257 (1987-01-01), Duckett et al.
patent: 4772295 (1988-09-01), Kato et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 12, (New York, 1980), pp. 492-517.

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