Method of treating vehicle exhaust gas and catalyst used therein

Details Method of treating vehicle exhaust gas and catalyst used therein Method of treating vehicle exhaust gas and catalyst used therein

1977-06-08

1979-02-20

Shine, W. J.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

252455R, 252465, 252468, 252470, 423239, B01D 5334, B01J 2378, B01J 2386, B01J 2104

Patent

active

041407490

ABSTRACT:
The present invention provides a catalyst for converting the noxous CO, NO.sub.x and hydrocarbons found in the exhaust gases from internal combustion engines into less harmful gases, and to the method of treating said exhaust gases. The catalyst consists essentially of a solid solution of Fe.sub.2 O.sub.3, Cr.sub.2 O.sub.3, and Fe.sub.3 O.sub.4. The catalyst may be extended on a porous carrier such as aluminum oxide or aluminum silicate. The catalyst is particularly suited for treating the exhaust gas from internal combustion engines of motor vehicles.

REFERENCES:
patent: 2408140 (1946-09-01), Gutzeit
patent: 3957691 (1976-05-01), Adachi et al.

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