Method of purifying exhaust gases

Details Method of purifying exhaust gases Method of purifying exhaust gases

1989-01-30

1991-08-20

Russel, Jeffrey E.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

4232137, B01D 5336

Patent

active

050412701

ABSTRACT:
The exhaust gases, such as of an internal combustion engine are contacted with a catalyst containing copper in the presence of hydrocarbons in an oxidizing atmosphere, whereby nitrogen oxides are reduced from the exhaust gases. Then, the exhaust gases are preferably contacted with an oxidizing catalyst. The former catalyst contains copper loaded on a porous support formed from alumina, silica, silica-alumina or zeolite or mixture thereof. The support is preferably a monolithic body having a first portion loaded with copper and a second portion loaded with a metal or metals defining the oxidizing catalyst.

REFERENCES:
patent: 3397034 (1968-08-01), Tulleners et al.
patent: 3656915 (1972-04-01), Tourtellotte
patent: 3860535 (1975-01-01), Johnson
patent: 3976745 (1976-08-01), Nakajima et al.
patent: 4003976 (1977-01-01), Komatsu et al.
patent: 4018710 (1977-04-01), Oshimura et al.
patent: 4071600 (1978-01-01), Schlatter et al.
patent: 4389382 (1983-06-01), Gandhi et al.

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