Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Mixture is exhaust from internal-combustion engine
Patent
1992-03-12
1994-07-05
Russel, Jeffrey E.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Mixture is exhaust from internal-combustion engine
502310, B01D 5336
Patent
active
RE0346551
ABSTRACT:
2-way and 3-way catalyst compositions comprising tin(IV) oxide (SnO.sub.2) and chromium(VI) oxide (CrO.sub.3) are disclosed for use in catalytic converters for vehicle exhaust gas systems, such catalyst compositions being effective in the catalytic oxidation of carbon monoxide and unburnt hydrocarbons, and in the catalytic reduction of nitrogen oxides contained in the vehicle exhaust.
REFERENCES:
patent: 3951867 (1976-04-01), Howell
patent: 4003978 (1977-01-01), Shiraishi et al.
patent: 4208537 (1980-06-01), Kawamata et al.
patent: 4524051 (1985-06-01), Wright et al.
patent: 5051393 (1991-09-01), Harrison et al.
Bozso et al, "Oxidation of Ethylene, Ethylene Oxide and Propylene . . . " Symp. Mech. Hydrocarbon Reactions 5-7, Jun. 1973 Siofoa, Hungary, pp. 311-320.
Solymosi et al, "Adsorption and Reduction of NO on Tin (IV) Oxide Doped with Chromium (III) Oxide", Nov. 11, 1977, pp. 42-51.
Chemical Abstracts, vol. 91, Abstr. No. 97262b, 1979, "The Preparation and Activation of Tin (IV) Oxide--Chromium (III) Oxide Catalysts".
Chemical Abstracts, vol. 81, Abstr. No. 175627j, 1974, "Removing Nitrogen Oxides from Waste or Exhaust Gases . . . ".
Fuller et al, "The Catalytic Reduction of Nitrous Oxide by Carbon Monoxide Over Tin (IV) Oxide", Nov. 11, 1975, vol. 39, pp. 412-418.
Craft et al, "Water-Promoted Oxidation of Carbon Monoxide over Tin (IV) Oxide-Supported Palladium," Nature, Oct. 13, 1977, vol. 269, pp. 585-586.
Fuller et al, "Catalysis of the NO--CO Reaction . . . ", Chemistry and Industry, Sep. 18, 1976, pp. 787-788.
Fuller et al, "The Catalytic Reduction of Nitric Oxide by Carbon Monoxide over SnO.sub.2 --CuO Gels," J. Catalysis, 1976, vol. 42, pp. 418-424.
Harris Peter J. F.
Harrison Philip G.
Arvin UK Limited
Russel Jeffrey E.
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