Reduction purification method of nitrogen oxide-containing exhau

Details Reduction purification method of nitrogen oxide-containing exhau Reduction purification method of nitrogen oxide-containing exhau

1996-12-26

2000-02-29

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232132, B01D 5356, B01D 5394

Patent

active

060305908

ABSTRACT:
A reduction purification method of a nitrogen oxide-containing exhaust gas by contacting said nitrogen oxide-containing exhaust gas with a catalyst in an oxidative atmosphere in which an excess amount of oxygen is present and in the presence of at least one reducing agent selected from the group consisting of a hydrocarbon and an oxygen-containing organic compound, wherein said catalyst comprises an alumina having supported thereon (a) tin and (b) at least one selected from the group consisting of ruthenium, palladium, rhodium and indium.

REFERENCES:
patent: 3840471 (1974-10-01), Acres
patent: 4162235 (1979-07-01), Acres et al.
patent: 4486547 (1984-12-01), Imai et al.
patent: 5275792 (1994-01-01), Obuchi e al.

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