Process for selective reduction of nitrogen oxides contained in

Details Process for selective reduction of nitrogen oxides contained in Process for selective reduction of nitrogen oxides contained in

1988-04-04

1990-03-20

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423235, B01J 800, C01B 2100

Patent

active

049100041

ABSTRACT:
A catalytic composition for selective reduction of nitrogen oxides comprising, as active material, mordenite in ammonium or acid form, with a residual sodium content less than 1000 ppmw, representing 70 to 95% of the total weight of the catalytic composition, the remainder comprising a binder. The active material can also be in the form of small-pore mordenite exchanged with copper ions.
The catalytic composition can be used for the purification of effluents with containing any nitrogen oxide, in particular for depolluting residual gases rejected into the atmosphere during the production of nitric acid.

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Chemical Abstracts, vol. 96, No. 20, 17 Mai 1982, p. 549, resume No. 170679c, Columbus, Ohio, U.S.; P. M. Hirsch: "Selected Conversion of Nitrogen Oxide Ammonia", & Environ. Prog. 1982 1(1), 24-9.

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