Adsorption of contaminants from gaseous stream and in situ...

Details Adsorption of contaminants from gaseous stream and in situ... Adsorption of contaminants from gaseous stream and in situ...

2008-01-08

2008-01-08

Lawrence, Frank M. (Department: 1724)

Gas separation: processes

Solid sorption

Including reduction of pressure

C096S143000, C096S146000, C096S149000

Reexamination Certificate

active

10499856

ABSTRACT:
Contaminant is removed from a gaseous stream, especially an air stream bearing the contaminant, by adsorption on a sorbent which is a resiliently compressible, electrically conductive, activated carbon cloth material, leaving a gaseous stream liberated of the contaminant; the carbon cloth material loaded with the contaminant may be regenerated by desorption of the contaminant; the carbon cloth material loaded with contaminant is housed in a vacuum and electric current is passed through the carbon cloth material generating heat in the cloth material which is effective to desorb the contaminant which is exhausted under vacuum; the level of heat generated is varied as required, typically to develop a temperature of 250 to 500° C. in the cloth material, by varying the compression of the cloth material; desorption is typically achieved in about 30 minutes at a vacuum of 10 Torr or less.

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