Catalysts for the selective reduction of nitrogen oxides and pro

Details Catalysts for the selective reduction of nitrogen oxides and pro Catalysts for the selective reduction of nitrogen oxides and pro

1991-04-09

1992-05-26

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502306, 502312, 502524, B01J 2110, B01J 2306, B01J 2322, B01J 2328, B01J 2330, B01J 2384, B01J 2385

Patent

active

051168014

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

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