Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1996-05-13
1998-08-11
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
4232132, 4232135, 4232137, 4232391, 42324402, 4235411, B01D 5356, B01D 5375, B01D 5386, B01D 5394
Patent
active
057924368
ABSTRACT:
A method of at least periodically removing from a lean gaseous stream a sorbable component such as SO.sub.x includes passing the gaseous stream through a trap member having an oxidation catalyst combined with a sorbent material at a temperature within the sorbing temperature range of the sorbent material. The sorbed component is periodically removed by introducing a combustible component into the gaseous stream and oxidizing it on the trap member to thermally desorb the sorbed component. The amount of combustible component introduced is limited to maintain the gaseous stream composition lean, but is sufficient to increase the surface temperature of at least part of the trap member to above the bulk temperature of the gaseous stream. Sorbing and desorbing periods are alternated and a composition and an apparatus to carry out the process is provided.
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Deeba Michel
Farrauto Robert J.
Feeley Jennifer S.
Lampert Jordan K.
Engelhard Corporation
Shatynski Theodore J.
Straub Gary P.
Vanoy Timothy C.
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