Multi-stage catalyst systems and uses thereof

Details Multi-stage catalyst systems and uses thereof Multi-stage catalyst systems and uses thereof

2006-04-26

2009-02-10

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

C423S213500, C423S213700, C423S239100, C423S245100, C423S245300, C423S247000, C060S274000, C060S282000, C060S299000, C060S301000, C422S169000, C422S170000, C422S171000, C422S177000, C422S180000, C502S300000, C502S325000, C502S330000, C502S339000, C502S344000, C502S347000

Reexamination Certificate

active

07488462

ABSTRACT:
Catalyst systems and methods provide benefits in reducing the content of nitrogen oxides in a gaseous stream containing nitric oxide (NO), hydrocarbons, carbon monoxide (CO), and oxygen (O2). The catalyst system comprises an oxidation catalyst comprising a first metal supported on a first inorganic oxide for catalyzing the oxidation of NO to nitrogen dioxide (NO2), and a reduction catalyst comprising a second metal supported on a second inorganic oxide for catalyzing the reduction of NO2to nitrogen (N2).

REFERENCES:
patent: 4806320 (1989-02-01), Nelson
patent: 4912776 (1990-03-01), Alcorn
patent: 5149512 (1992-09-01), Li et al.
patent: 5224334 (1993-07-01), Bell
patent: 5240689 (1993-08-01), Jones
patent: 5260043 (1993-11-01), Li et al.
patent: 5308810 (1994-05-01), Voss et al.
patent: 5336476 (1994-08-01), Kintaichi et al.
patent: 5474745 (1995-12-01), Fukui et al.
patent: 5571763 (1996-11-01), Takemoto et al.
patent: 5650127 (1997-07-01), Campbell et al.
patent: 5740667 (1998-04-01), Bhattacharyya et al.
patent: 5891409 (1999-04-01), Hsiao et al.
patent: 5985222 (1999-11-01), Sudduth et al.
patent: 6066303 (2000-05-01), Sudduth et al.
patent: 6136283 (2000-10-01), Stern
patent: 6193942 (2001-02-01), Okuda et al.
patent: 6206685 (2001-03-01), Zamansky et al.
patent: 6348178 (2002-02-01), Sudduth et al.
patent: 6410477 (2002-06-01), Ohtsuka et al.
patent: 6446430 (2002-09-01), Roth et al.
patent: 6458741 (2002-10-01), Roark et al.
patent: 6471506 (2002-10-01), Zamansky et al.
patent: 6475350 (2002-11-01), Palekar et al.
patent: 6514470 (2003-02-01), Ott et al.
patent: 6557342 (2003-05-01), Suga et al.
patent: 6562753 (2003-05-01), Miyoshi et al.
patent: 6576587 (2003-06-01), Labarge et al.
patent: 6602481 (2003-08-01), Ohtsuka et al.
patent: 6682709 (2004-01-01), Sudduth et al.
patent: 6729125 (2004-05-01), Suga et al.
patent: 6753294 (2004-06-01), Brisley et al.
patent: 6787118 (2004-09-01), Roark et al.
patent: 6805849 (2004-10-01), Andreasson et al.
patent: 6823662 (2004-11-01), Yamamoto et al.
patent: 2003/0093992 (2003-05-01), Suga et al.
patent: 2004/0013591 (2004-01-01), Ohtsuka et al.
patent: 2004/0013592 (2004-01-01), Ohtsuka et al.
patent: 2004/0235654 (2004-11-01), Ohtsuka et al.
patent: 2005/0002839 (2005-01-01), Ohtsuka et al.
patent: 2006/0010859 (2006-01-01), Yan et al.
patent: 2007/0031310 (2007-02-01), Lee
patent: WO 01/45833 (2001-06-01), None
Federico Grillo, Marta Maria Natile, Glisenti, Low temperature oxidation of carbon monoxide: the influence of water and oxygen on the reactivity of a Co3O4powder surface, Applied Catalysis B: Environmental, Apr. 8, 2004, pp. 267-274, vol. 48, Issue 4, Elsevier B.V.

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