Spinel-based catalysts for reducing exhaust emissions of NO.sub.

Details Spinel-based catalysts for reducing exhaust emissions of NO.sub. Spinel-based catalysts for reducing exhaust emissions of NO.sub.

1997-11-18

1999-03-02

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232132, 4232135, 502514, 502524, B01D 5356, B01D 5394, B01J10180

Patent

active

058766812

ABSTRACT:
Oxygen-rich exhaust gases, for example those emanating from internal combustion engines, e.g., diesel engines, are catalytically treated/converted to reduce emissions of NO.sub.x, in the presence of a catalytically effective amount of a spinel mass oxide essentially having the formula ZnAl.sub.2 O.sub.4 which was prepared by forming a solution or suspension of the salts of the constituent elements of the mass oxide, drying by atomizing the solution or suspension and calcining the salts of the constituent elements of the mass oxide so as to result in the spinel mass oxide.

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Nippon Kagaku Kaishi, vol. 7, pp. 1036-1038 (1991) No Month, Published by the Chemical Society of Japan.

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