Cryogenic air separation system with kettle vapor bypass

Details Cryogenic air separation system with kettle vapor bypass Cryogenic air separation system with kettle vapor bypass

1994-01-12

1995-02-07

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 22, 62 38, F25J 302

Patent

active

053866916

ABSTRACT:
A cryogenic air separation system wherein a portion of the feed air is condensed against vaporizing product from the air separation plant and at least some of the vaporized bottom liquid from the higher pressure column is withdrawn from the system, bypassing the lower pressure column thereby increasing the L/V ratio in the upper portion of the lower pressure column to compensate for reduced liquid in that column caused by the feed air liquefaction.

REFERENCES:
patent: 5078766 (1992-01-01), Guilleminot
patent: 5079923 (1992-01-01), Grenier
patent: 5098456 (1992-03-01), Dray et al.
patent: 5108476 (1992-04-01), Dray et al.
patent: 5114452 (1992-05-01), Dray
patent: 5197296 (1993-03-01), Prosser et al.
patent: 5228296 (1993-07-01), Howard
patent: 5263327 (1993-11-01), Drnevich et al.
patent: 5265429 (1993-11-01), Dray
patent: 5305611 (1994-04-01), Howard
patent: 5337570 (1994-08-01), Prosser

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