Cryogenic processes for separating air

Details Cryogenic processes for separating air Cryogenic processes for separating air

1980-07-10

1981-12-01

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 41, 62 38, 62 30, F25J 304

Patent

active

043034284

ABSTRACT:
This invention relates to cryogenic air separation processes. Liquid low-pressure oxygen is pumped to a high pressure and vaporized and heated in thermal exchange with a first high-pressure fluid, and a second intermediate-pressure fluid drawn off and expanded in a turbine.
The invention is used in the production of oxygen under high pressure.

REFERENCES:
patent: 2520862 (1950-08-01), Swearingen
patent: 3083544 (1963-04-01), Jakob
patent: 3143406 (1964-08-01), Becker
patent: 3214925 (1965-11-01), Becker
patent: 3648471 (1972-03-01), Basin et al.

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