Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Mixture is exhaust from internal-combustion engine
Patent
1985-09-30
1987-10-27
Doll, John
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Mixture is exhaust from internal-combustion engine
B01D 5336
Patent
active
047028971
ABSTRACT:
A lead-resistant exhaust gas oxidation catalytic composite is disclosed. The composite comprises a support material comprising a refractory inorganic oxide having deposited thereon a catalytic component selected from the Group consisting of platinum, palladium, iridium, rhodium and mixtures thereof and having dispersed thereover a protective coating of zirconia. Also disclosed is a method for effecting oxidation of noxious exhaust gases comprising hydrocarbons, carbon monoxide and lead compounds. Additionally, a method for oxidizing an exhaust gas from an internal combustion engine operating upon leaded fuel is also disclosed.
REFERENCES:
patent: 3112277 (1963-11-01), Michalko
patent: 3873469 (1975-03-01), Foster et al.
patent: 3931054 (1976-01-01), Lester
patent: 4189404 (1980-02-01), Keith et al.
Doll John
McBride Thomas K.
Russel Jeffrey Edwin
Signal Applied Technologies Inc.
Spears Jr. John F.
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