Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Halogenous component
Patent
1994-01-21
1995-09-19
Warden, Robert J.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Halogenous component
422171, 422177, 422190, 422193, 422211, 4232453, 423247, 588207, B01D 5000, B01D 5300
Patent
active
054513880
ABSTRACT:
A method and device for treating a gas stream comprising at least one non-halogenated carbonaceous compound and optionally at least one halogenated organic compound. The gas stream, at 100.degree. C. to 650.degree. C. and in the presence of oxygen is contacted with a first catalyst in a first catalyst zone. The first catalyst comprises a first catalytic material deposited on a low acidity support material. In this zone, the non-halogenated compound is selectively reacted to form innocuous materials such as water and carbon monoxide. This can be followed by contacting the gas stream with a second catalyst in a second catalyst zone. The second catalyst comprises a second catalytic material deposited on a high acidity support material. In this zone, the halogenated organic compounds are reacted.
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Chen James M.
Nguyen Pascaline
Engelhard Corporation
Thornton Krisanne M.
Warden Robert J.
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