Lead-tolerant catalyst system for treating exhaust gas containin

Details Lead-tolerant catalyst system for treating exhaust gas containin Lead-tolerant catalyst system for treating exhaust gas containin

1984-10-19

1986-02-25

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, 502332, 502334, 502339, 4232135, B01J 2104, B01J 2342, B01J 2344, B01J 2346

Patent

active

045729042

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: 3304150 (1967-02-01), Stover et al.
patent: 3378334 (1968-04-01), Bloch
patent: 3409390 (1968-11-01), Hoekstra
patent: 3873469 (1975-03-01), Foster et al.
patent: 3931050 (1976-01-01), Asano et al.
patent: 4316822 (1982-02-01), Fujitani et al.

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