Process and apparatus for the production of oxygen under pressur

Details Process and apparatus for the production of oxygen under pressur Process and apparatus for the production of oxygen under pressur

1994-01-27

1995-06-27

Caposse, Ronald C.

Refrigeration

Processes

Circulating external gas

62 38, 62 43, F25J 302

Patent

active

054269474

ABSTRACT:
All the air to be distilled is compressed to a first high pressure and is thereafter separated into two portions. The first portion, representing at least 70% of the flow, is boosted to a second high pressure and cooled down in a heat exchanger to an intermediate temperature, where a part thereof is work expended to the mean pressure while the remainder is liquefied. The second portion is cooled and liquefied in the heat exchange line, into one or a plurality of flows at one or more pressures between the first and second high pressures.

REFERENCES:
patent: 4303428 (1981-12-01), Vandenbussche
patent: 4746343 (1988-05-01), Ishizu et al.

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