Catalyst for the selective reduction of nitrogen oxides and proc

Details Catalyst for the selective reduction of nitrogen oxides and proc Catalyst for the selective reduction of nitrogen oxides and proc

1989-06-20

1991-08-06

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 2104, B01J 2322, B01J 2328, B01J 2330

Patent

active

050377922

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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