Catalyst for the reduction of the ignition temperature of diesel

Details Catalyst for the reduction of the ignition temperature of diesel Catalyst for the reduction of the ignition temperature of diesel

1988-05-05

1989-07-18

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, 502527, 4232155, B01J 2104, B01J 2342, B01J 2344, B01J 2346

Patent

active

048493996

ABSTRACT:
This invention relates to a catalytic composite and a process for reducing the ignition temperature of diesel soot. The process comprises contacting an exhaust gas from a diesel engine, which exhaust contains diesel soot, with a catalytic composite. The composite comprises a sulfur resistant refractory inorganic oxide selected from the group consisting of titania, zirconia, silica, silica-alumina and alumina which has been treated to be sulfur resistant, i.e. alumina treated with titania, zirconia, etc. which has deposited thereon at least one catalytic element selected from the group consisting of Pt, Pd and Rh. The inorganic oxide may be deposited on ceramic or metallic traps.

REFERENCES:
patent: 3565830 (1971-02-01), Keith et al.
patent: 4483940 (1984-11-01), Ono et al.

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