Split pressure feed for the selective production of pure oxygen

Details Split pressure feed for the selective production of pure oxygen Split pressure feed for the selective production of pure oxygen

1980-01-28

1982-10-26

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 29, 62 38, F25J 304

Patent

active

043560130

ABSTRACT:
In the obtaining of oxygen from air by low-temperature rectification in a double rectification column by compressing the air to be fractionated into higher and lower pressure partial streams; cooling said partial streams in indirect heat exchange with a nitrogen-enriched gaseous stream from the rectification column; and introducing the partial stream of the air to be fractionated which has been compressed to the higher pressure into the lower part of the high pressure column,

REFERENCES:
patent: 2040107 (1936-05-01), Schlitt
patent: 2664719 (1954-01-01), Rice et al.
patent: 2873583 (1959-02-01), Potts et al.
patent: 4254629 (1981-03-01), Olszewski

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