Patent application number | Description | Published |
20090288402 | Emission Treatment Catalysts, Systems and Methods - Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described. | 11-26-2009 |
20100180580 | Emissions Treatment Systems and Methods With Catalyzed SCR Filter and Downstream SCR Catalyst - Emissions treatment systems and methods for treating an engine exhaust gas stream containing NO | 07-22-2010 |
20100269491 | PARTIAL FILTER SUBSTRATES CONTAINING SCR CATALYSTS AND METHODS AND EMISSIONS TREATMENT SYSTEMS - Catalytic articles, methods and emissions treatment systems for treating an engine exhaust gas stream containing NO | 10-28-2010 |
20110271664 | Integrated SCR and AMOX Catalyst Systems - Catalysts and catalytic articles for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes a first zone to abate nitrogen oxides by selective catalytic reduction, a second zone to oxidize ammonia and a third zone to oxidize carbon monoxide and hydrocarbons. Methods for treating the exhaust gas stream are also provided. Methods of making and using such catalysts and catalytic articles are also described. | 11-10-2011 |
20120258254 | Methods For Providing High-Surface Area Coatings To Mitigate Hydrocarbon Deposits On Engine And Powertrain Components - Provided are methods related to preventing hydrocarbon residue buildup in engine, exhaust-gas-system or powertrain components. Prevention is achieved by applying coating of a mixed metal oxide via a suspension plasma spray. | 10-11-2012 |
20120258266 | Coatings For Engine And Powertrain Components To Prevent Buildup Of Deposits - Provided are methods and components related to preventing hydrocarbon residue buildup in engine components. Prevention is achieved using a coating of a mixed metal oxide. The mixed metal oxide comprises a mixture of at least two of Gd, Al, Ti, Ce, Pr, La, Y, Nd, and Mn. The coating can also contain amounts of precious metals, eg. Pt, Pd, Rh and/or Au. | 10-11-2012 |
20140271429 | Zoned Catalyst For Diesel Applications - An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a zoned diesel oxidation catalyst with a first washcoat zone with a Pt/Pd ratio that is less than 3:1 and a PGM loading at least twice that of a second washcoat zone. | 09-18-2014 |
20150298098 | Zoned Catalyst Composites - Provided herein are zoned catalysts that utilize components efficiently in that relatively short zones are provided to achieve specific functionalities to convert and/or trap one or more components in the exhaust stream. Highly controlled zoned are formed from one end of a monolithic carrier. The zones have a flat profile such that the zoned catalytic material within each passage of the substrate is at a substantially uniform distance from one end of the carrier. Methods of making and using the same are also provided. | 10-22-2015 |