Exhaust purifying catalyst for use in an internal combustion eng

Details Exhaust purifying catalyst for use in an internal combustion eng Exhaust purifying catalyst for use in an internal combustion eng

1992-10-14

1994-07-26

McMahon, Timothy M.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

60299, 60303, 60304, 422171, 422177, 423220, 423230, B01D 5336

Patent

active

053325540

ABSTRACT:
An exhaust gas purifying catalyst for use in an internal combustion engine includes a porous monolithic carrier, a catalyst coating layer formed on a surface of the monolithic carrier and containing a catalytic material capable of purifying exhaust gases, and a palladium-supporting layer formed in the catalyst coating layer at a location close to an exhaust gas inlet end of the monolithic carrier. Palladium is distributed at a high concentration in the palladium-supporting layer.

REFERENCES:
patent: 3891575 (1975-06-01), Brautigam et al.
patent: 4118199 (1978-10-01), Volker et al.
patent: 4188309 (1980-02-01), Volker et al.
patent: 4335023 (1982-06-01), Dettling et al.
patent: 4711009 (1987-12-01), Cornelison et al.
patent: 4985210 (1991-01-01), Minami
patent: 4985211 (1991-01-01), Akiyama et al.
Japan, Kokai, No. 61-46252, Mar. 6, 1986, English Translation.

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