Process for the recovery of perfluorinated compounds

Details Process for the recovery of perfluorinated compounds Process for the recovery of perfluorinated compounds

1996-07-12

1997-05-06

Kilner, Christopher

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62657, 62908, 62918, F25J 300

Patent

active

056260334

ABSTRACT:
A process for recovering a given component from a first gas stream in which the given component is intermittently present by PSA or TSA using an adsorbent which more strongly adsorbs the given component by introducing into the first gas stream, prior to PSA or TSA treatment, a second gas stream that is enriched in the given component. The second gas stream may be introduced into the first gas stream only during periods when the concentration of given component in the first gas stream is below its maximum concentration or it may be continuously introduced into the first gas stream at a level which is greater than the maximum concentration of given component originally present in the first gas stream.

REFERENCES:
patent: 4373942 (1983-02-01), Wright
patent: 4972676 (1990-11-01), Sakai
patent: 5220796 (1993-06-01), Kearns
patent: 5398513 (1995-03-01), Klobucar
patent: 5425242 (1995-06-01), Dunne et al.
patent: 5435141 (1995-07-01), Rose et al.
patent: 5481881 (1996-01-01), Buet et al.

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