Air separation process to produce elevated pressure oxygen

Details Air separation process to produce elevated pressure oxygen Air separation process to produce elevated pressure oxygen

1984-07-06

1985-12-24

Bashore, S. Leon

Refrigeration

Processes

Circulating external gas

62 30, 62 31, F25J 304

Patent

active

045603987

ABSTRACT:
A double column air separation process which enables one to efficiently produce oxygen gas at a pressure exceeding that of the lower pressure column without compression or pumping wherein oxygen liquid hydrostatic head is employed to impart a pressure increase to the oxygen.

REFERENCES:
patent: 2812645 (1957-11-01), Locklair et al.
patent: 2896415 (1959-07-01), Shanley
patent: 2997854 (1961-08-01), Schilling et al.
patent: 3210951 (1965-10-01), Gaumer
patent: 3609983 (1971-10-01), Lofredo et al.
patent: 4133662 (1979-01-01), Wagner
patent: 4325719 (1982-04-01), Yamazaki

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