Purification of oxygen by cryogenic adsorption

Details Purification of oxygen by cryogenic adsorption Purification of oxygen by cryogenic adsorption

1992-10-01

1995-06-20

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 24, 95106, 96126, 96130, F25J 300

Patent

active

054252407

ABSTRACT:
Apparatus and a process for producing high purity oxygen containing not more than 1 ppm by volume of hydrocarbons. An oxygen stream containing up to about 100 ppm by volume of hydrocarbons is subjected to cryogenic temperature swing adsorption in an adsorption bed containing calcium-exchanged type X zeolite, type 5A zeolite or 13X zeolite, for the removal of the hydrocarbons and any nitrogen present in the oxygen stream.

REFERENCES:
patent: 3967464 (1976-07-01), Cormier et al.
patent: 4746332 (1988-05-01), Tomomura et al.
patent: 4952223 (1990-08-01), Kirshnamurthy et al.
patent: 4957523 (1990-09-01), Zarate et al.

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