Process for the catalytic reduction of nitrogen oxides in gaseou

Details Process for the catalytic reduction of nitrogen oxides in gaseou Process for the catalytic reduction of nitrogen oxides in gaseou

1979-05-10

1981-05-19

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

252464, 252465, B01D 5334

Patent

active

042684889

ABSTRACT:
A process for the reductive removal of a nitrogen oxide from a gaseous stream, particularly a stream containing oxygen, water, sulfur dioxide, nitrogen oxide and nitrogen, by contacting the stream with ammonia in the presence of a mixture of two catalysts. The first catalyst comprises copper or a copper compound, preferably copper sulfate supported on a porous carrier material. The second catalyst is a combination of metals or compounds thereof, preferably sulfates of vanadium and iron or tungsten and iron, also dispersed on a porous carrier material.

REFERENCES:
patent: 4070305 (1978-01-01), Obayashi et al.
patent: 4107272 (1978-08-01), Mori et al.
patent: 4138368 (1979-02-01), Kiyomiya et al.
patent: 4164546 (1979-08-01), Welty

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