Catalytic treatment of automotive exhaust gas

Details Catalytic treatment of automotive exhaust gas Catalytic treatment of automotive exhaust gas

1975-01-17

1977-01-25

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

252463, 423212, B01D 5334

Patent

active

040051773

ABSTRACT:
Disclosed is an improved catalyst having a high thermal stability including a solid catalyst support having a layer of catalytically active carrier material, either as a coating on a non-catalytically active support or as particles of catalytically active carrier material, and a catalytically active metal component upon the carrier, wherein the improved aspect resides in between about 0.2 and 15% by weight of zinc in the form of zinc oxide contained in the catalytically active carrier material. Also disclosed are a method for preparing the improved catalyst and a method for utilizing the catalyst for purifying automobile exhaust gas and industrial waste gas.

REFERENCES:
patent: 3224831 (1965-12-01), Stephens
patent: 3236783 (1966-02-01), Stiles
patent: 3476508 (1969-11-01), Kearby et al.
patent: 3674423 (1972-07-01), Klimisch
patent: 3794588 (1974-02-01), Stiles
patent: 3839224 (1974-10-01), Yonehara et al.
patent: 3844980 (1974-10-01), Sakai et al.

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