Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Mixture is exhaust from internal-combustion engine
Reexamination Certificate
2003-12-19
2009-06-02
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Mixture is exhaust from internal-combustion engine
C423S213700, C423S239100, C423S239200, C423SDIG018, C423SDIG010, C422S105000, C204S168000, C204S169000, C204S177000, C204S179000, C060S274000, C060S282000, C060S299000
Reexamination Certificate
active
07541010
ABSTRACT:
A method of making an exhaust treatment element includes washcoating a substrate with a slurry that includes a catalyst support material. At least some of the catalyst support material from the slurry may be transferred to the substrate, and silver metal (Ag) is dispersed within the catalyst support material.
REFERENCES:
patent: 3986350 (1976-10-01), Schmidt
patent: 5154901 (1992-10-01), Yoshida et al.
patent: 5300269 (1994-04-01), Aichinger et al.
patent: 5458748 (1995-10-01), Breault et al.
patent: 5534237 (1996-07-01), Yoshida et al.
patent: 5559072 (1996-09-01), Itoh et al.
patent: 5577383 (1996-11-01), Kuroda et al.
patent: 5710088 (1998-01-01), Jen et al.
patent: 5980844 (1999-11-01), Kharas
patent: 6029442 (2000-02-01), Caren et al.
patent: 6066587 (2000-05-01), Kurokawa et al.
patent: 6103208 (2000-08-01), Ogawa et al.
patent: 6153162 (2000-11-01), Fetzer et al.
patent: 6176078 (2001-01-01), Balko et al.
patent: 6284211 (2001-09-01), Miyadera et al.
patent: 6314722 (2001-11-01), Matros et al.
patent: 6321531 (2001-11-01), Caren et al.
patent: 6365118 (2002-04-01), Kharas et al.
patent: 6936232 (2005-08-01), Gillespie et al.
patent: 7081231 (2006-07-01), Aardahl et al.
patent: 7153810 (2006-12-01), Park et al.
patent: 7374728 (2008-05-01), Nakanishi et al.
patent: 2002/0069642 (2002-06-01), Dolling et al.
patent: 2005/0135977 (2005-06-01), Park et al.
patent: 2006/0228283 (2006-10-01), Malyala et al.
patent: 2002-370032 (2002-12-01), None
Meunier, et al., “Mechanistic differences in the selective reduction of NO by propene over cobalt- and silver-promoted alumina catalysts: kinetic and in situ DRIFTS study,” Catalysis Today 59 (2000), pp. 287-304.
Abe, et al., “Effect of SO2on NOxreduction by ethanol over Ag/AI2O3catalyst,” Catalysis Letters 51 (1998), pp. 5-9.
Meunier, et al., “Effect of ex situ treatments with SO2on the activity of a low loading silver-alumina catalyst for the selective reductioin of NO and NO2by propene,” Applied Catalysis B: Environmental 24 (2000), pp. 23-32.
Ukisu, et al., “Infrared study of catalytic reduction of lean NOx with alcohols over alumina-supported silver catalyst,” Catalysis Letters 39 (1996), pp. 265-267.
Shimizu, et al., “Catalytic performance of Ag-AI2O3catalyst for the selective catalytic reduction of NO by higher hydrocarbons,” Applied Catalysis B: Environmental 25 (2000), pp. 239-247.
Miyadera, et al., “Alumina-supported Catalysts for the Selective Reduction of Nitric Oxide by Propene,” Chemistry Letters (1993), pp. 1483-1486.
Miyadera, Tatsuo, “Alumina-supported silver catalysts for the selective reduction of nitric oxide with propene and oxygen-containing organic compounds,” Applied Catalysis B: Environmental, 2 (1993), pp. 199-205.
Sumiya, et al., “Reduction of lean NOx by ethanol over Ag/AI2O3catalysts in the presence of H2O and SO2,” Catalysis letters 50 (1998), pp. 87-91.
Chafik, et al., “In situ diffuse reflectance infrared Fourier transform spectroscopy study of surface species involved in NOx reduction by ethanol over alumina-supported silver catalyst,” Journal of Molecular Catalysis A: Chemical 136 (1998), pp. 203-211.
JPO Machine Translation of JP 2002-370032.
Boyer Carrie L.
Hester Virgil Raymond
Park Paul Worn
Ragle Christie Susan
Caterpillar Inc.
Finnegan Henderson Farabow Garrett & Dunner
Vanoy Timothy C
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