Lead-tolerant catalyst for treating exhaust gas in the presence

Details Lead-tolerant catalyst for treating exhaust gas in the presence Lead-tolerant catalyst for treating exhaust gas in the presence

1986-03-21

1987-03-17

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, 502332, 502333, 502334, 502344, 502347, 502348, 4232135, B01J 2104, B01J 2106, B01J 2340, B01J 2348

Patent

active

046507825

ABSTRACT:
A lead-tolerant exhaust gas oxidation catalytic composite for oxidizing gas in the presence of SO.sub.2 comprising a refractory inorganic oxide support material having deposited thereon a noble metal component and having dispersed thereon a protective coating of titania. The refractory support material may be deposited with a noble metal and thereafter applied as a washcoat on a low surface area support matrix followed by a titanium washcoat superimposed thereover. Also, a method for treating exhaust gases containing lead components by contacting the exhaust gas with the catalytic composite is disclosed.

REFERENCES:
patent: 3873469 (1975-03-01), Foster et al.
patent: 3931050 (1976-01-01), Asano et al.
patent: 4350613 (1982-09-01), Nishino et al.
patent: 4351811 (1982-09-01), Matsuda et al.

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