Process for absorbing toxic gas
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United States of America Patent
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-
Nov 22, 1988
Issued Date -
N/A
app pub date -
Oct 7, 1987
filing date -
Feb 3, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for absorbing noxious components such as SO.sub.x, NO.sub.x, and HX from a gas such as a flue gas at temperature below 250.degree. C. is improved by contacting the gas with a conditioned solid acceptor that contains divalent metal oxide, hydroxide or both coated onto exfoliated vermiculite and/or expanded perlite. Before use (to enhance its absorption of noxious components) conditioning can be done by heating the hydrated acceptor at temperature of at least about 400.degree. C. for a short time.
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