Exhaust system comprising zoned oxidation catalyst

Details Exhaust system comprising zoned oxidation catalyst Exhaust system comprising zoned oxidation catalyst

2011-08-16

2011-08-16

Warden, Jill (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C422S222000

Reexamination Certificate

active

07998424

ABSTRACT:
An exhaust system for a lean-burn internal combustion engine comprises a catalyst for oxidising carbon monoxide and hydrocarbons comprising a flow-through substrate monolith comprising a first platinum group metal (PGM) zone containing at least one PGM supported on a surface area-increasing washcoat component, a second PGM zone containing at least one PGM supported on a surface area-increasing washcoat component, a third PGM zone containing at least one PGM supported on a surface area-increasing washcoat component wherein both the PGM loading in the first PGM zone and the PGM loading in the third PGM zone is greater than the PGM loading in the second PGM zone and wherein the first PGM zone comprises a washcoat loading that is less than a washcoat loading of the third PGM zone.

REFERENCES:
patent: 5281128 (1994-01-01), Dalla Betta et al.
patent: 6375910 (2002-04-01), Deeba et al.
patent: 6827909 (2004-12-01), Brück et al.
patent: 7524465 (2009-04-01), Kumar et al.
patent: 7837953 (2010-11-01), Shore
patent: 2001/0026838 (2001-10-01), Dettling et al.
patent: 2008/0047244 (2008-02-01), Zhang et al.
patent: 0 470 653 (1992-02-01), None
patent: 0 737 505 (1996-10-01), None
patent: 1 561 509 (2005-08-01), None
patent: 2 406 803 (2005-04-01), None
patent: WO-99/47260 (1999-09-01), None
patent: WO-99/55459 (1999-11-01), None
patent: WO-01/74476 (2001-10-01), None

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