Process using novel catalysts for the selective reduction of nit

Details Process using novel catalysts for the selective reduction of nit Process using novel catalysts for the selective reduction of nit

1992-01-29

1994-02-01

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232392, B01J 800, G01B 2100

Patent

active

052830551

ABSTRACT:
Novel catalysts that include a porous alumina support having a surface coating of at least one spinel compound thereon, e.g., a compound having the formula M.sup.1 Al.sub.2 O.sub.4, and a catalytically active phase deposited onto such coated support, e.g., a catalytically active metallic oxide, are well adopted for the catalytic ammonia reduction of NO.sub.x values contained in gaseous flowstreams thereof, which gaseous flowstreams typically also contain SO.sub.x values.

REFERENCES:
patent: 3368982 (1968-02-01), Milbourne
patent: 4081408 (1978-03-01), Fischer et al.
patent: 4256722 (1981-03-01), Carrier
patent: 4274981 (1981-06-01), Suzuki et al.
patent: 4456703 (1984-06-01), Aldridge
patent: 4793981 (1988-12-01), Doyle et al.

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