Thermal swing helium purifier and process

Details Thermal swing helium purifier and process Thermal swing helium purifier and process

1996-08-23

1998-08-04

Bennett, Henry A.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

95130, 95138, 62 22, F25J 500

Patent

active

057877300

ABSTRACT:
A process and a system for producing helium from a helium-bearing feed gas that is purified in a cryogenic processing unit to produce cryogenic crude helium containing at least 10% helium. The cryogenic crude helium is directly introduced into a thermal swing helium refinery where it is refined. Refrigeration is supplied to the refinery by the cryogenic crude helium from the cryogenic processing unit.

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patent: 3653220 (1972-04-01), Foster et al.
patent: 4701189 (1987-10-01), Oliker
patent: 4717407 (1988-01-01), Choe et al.
patent: 5159816 (1992-11-01), Kovak et al.
patent: 5336300 (1994-08-01), Yoshino et al.
patent: 5601634 (1997-02-01), Jain et al.

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