Ultra pure liquid oxygen cycle

Details Ultra pure liquid oxygen cycle Ultra pure liquid oxygen cycle

1988-05-13

1989-09-26

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 40, F25J 302

Patent

active

048697419

ABSTRACT:
The present invention is a process for the production of 99.999+% pure oxygen. The process comprises a cryogenic distillation system which removes impurities from oxygen. The process can be operated independently of an air separation unit by using an external source to provide reboil and condensing duties for the distillation column.

REFERENCES:
patent: 3363427 (1968-01-01), Blanchard et al.
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patent: 4560397 (1985-12-01), Cheung
patent: 4615716 (1986-10-01), Cormier et al.
patent: 4702757 (1987-10-01), Kleinberg
patent: 4704147 (1987-11-01), Kleinberg
patent: 4704148 (1987-11-01), Kleinberg
patent: 4762542 (1988-08-01), Mishkovsky et al.

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