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| Number | Title | Issue Date |
| 7442354 | Treatment of engine exhaust using molecular sieve SSZ-56 The present invention relates to new crystalline molecular sieve SSZ-56 prepared using a N,N-diethyl-2-methyldecahydroquinolinium cation as a structure-directing agent and its use in minimizing cold start emissions from engines. ... | 10/28/2008 |
| 7431749 | Catalytic filter for removing soot particulates from diesel engine exhaust and method of preparing the same Disclosed is a catalytic filter for removing soot particulates from diesel engine exhaust, which is comprised of monolithic oxidation catalyst upstream of the catalytic filter, which effectively oxidize gaseous pollutants and volatile organic fractions, and a cataly... | 10/07/2008 |
| 7413720 | Catalyst and method for reduction of nitrogen oxides A Selective Catalytic Reduction (SCR) catalyst was prepared by slurry coating ZSM-5 zeolite onto a cordierite monolith, then subliming an iron salt onto the zeolite, calcining the monolith, and then dipping the monolith either into an aqueous solution of manganese n... | 08/19/2008 |
| 7402292 | Device and methods of ammonia generation for NOx abatement One embodiment of a method of operating a NOx abatement system comprises: introducing an exhaust stream to an ammonia generator in a normal flow direction, adsorbing NOx from the exhaust stream in the ammonia generator, diverting the exhaust stream around the ammoni... | 07/22/2008 |
| 7396517 | Reduction of NOx emissions using a staged silver/alumina catalyst system The hydrocarbon-assisted, selective catalytic reduction of NOx constituents in lean-bum engine exhaust is benefited by passage of the exhaust over a staged catalyst bed comprising a first stage of an alumina-supported silver catalyst for oxidation of NO to NO2 ... | 07/08/2008 |
| 7390469 | Bimodal catalyst-urea SCR system for enhanced NOconversion and durability The present invention discloses a method for reducing NOx in exhaust gases of an internal combustion engine. The purpose of this invention is to convert engine out NOx (approximately 90% NO in diesel exhaust) into roughly a 50:50 mixture of NO ... | 06/24/2008 |
| 7361320 | Exhaust gas purification unit with reducing agent supply The invention proposes an exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, in which a particulate filter and a SCR cat... | 04/22/2008 |
| 7300640 | Method for clarifying exhaust gas A cleaning process of exhaust gas which includes the steps of bringing the exhaust gas containing at least one of nitrogen oxides or organic solvent into contact with a cleaning agent including metal as a reductive cleaning agent component and metal oxide as an oxid... | 11/27/2007 |
| 7285247 | Apparatus and method for operating a fuel reformer so as to purge soot therefrom A method of operating a fuel reformer includes advancing a first air/fuel mixture having a first air-to-fuel ratio into the fuel reformer. The method further includes determining if a soot purge is to be performed and generating a purge-soot signal in response there... | 10/23/2007 |
| 7267805 | Particle trap and assemblies and exhaust tracts having the particle trap A particle trap, which may be installed in a pipe, e.g. in an exhaust tract of a motor vehicle, is provided for the agglomeration and oxidation of particles in a fluid flow and includes a multiplicity of substantially rectilinear and mutually parallel flow passages ... | 09/11/2007 |
| 7264785 | Selective catalytic reduction A method of selectively catalysing the reduction of NOx in an exhaust gas flowing in an exhaust system of an internal combustion engine comprising a filter (40) for particulate matter comprising a catalyst capable of selectively catalysing the redu... | 09/04/2007 |
| 7244281 | Method and apparatus for trapping and purging soot from a fuel reformer A plasma fuel reformer assembly for producing reformate gas includes a fuel reformer having an air/fuel input assembly, an electrode assembly, and a soot trap positioned downstream of the electrode assembly. The electrode assembly includes a first electrode and a se... | 07/17/2007 |
| 7211180 | Contamination-resistant gas sensor element A contamination-resistant sensor element and methods for making the same are provided. A sensor element may include a contamination-resistant coating on at least a portion thereof. The coating may comprise gamma-delta alumina and lithium oxide and may have a thickne... | 05/01/2007 |
| 7210288 | Exhaust gas aftertreatment installation and method An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic convert... | 05/01/2007 |
| 7210285 | Internal combustion engine exhaust gas purifying system An internal combustion engine exhaust gas purifying system (10) having a continuous regenerating diesel particulate filter system (3) on the exhaust passage (2) of an internal combustion engine (1) is constituted by including collected-qu... | 05/01/2007 |
| 7207171 | Exhaust gas purifying method and exhaust gas purifying system To provide an exhaust gas purifying method and an exhaust gas purifying system capable of efficiently purging the sulfur accumulated in a NOx occluding reduction type catalyst, while preventing fuel consumption from deteriorating and preventing NOx, HC, and CO from ... | 04/24/2007 |
| 7199088 | Lubricating oil for a diesel powered engine and method of operating a diesel powered engine A lubricating oil composition useful for a diesel-powered engine is provided that reduces NOx emissions level produced from a diesel-powered engine. The lubricating oil comprises a base oil and at least one oil-dispersible source of HNCO such as isocyanates. A metho... | 04/03/2007 |
| 7189377 | Apparatus for performing integrated process for reproduction of vinyl acetate and/or acetic acid using a fluidized bed 1. Acetic acid and/or vinyl acetate are produced by an integrated process which comprises the steps:— (a) contacting in a first reaction zone a gaseous feedstock comprising ethylene and/or ethane and optionally steam with a molecular oxygen-containing... | 03/13/2007 |
| 7185486 | Method for the post-treatment of exhaust gases by subsequent injection of fuel in a diesel-type internal combustion engine provided with a pre-catalyst and a particulate filter A process is proposed for exhaust gas aftertreatment by afterinjection of fuel in a diesel internal combustion engine with a precatalyst and a particulate filter, in which process the afterinjection NE is performed as a function of the temperature in the area of the... | 03/06/2007 |
| 7175821 | Reactor and process for reducing emissions of CO and NO The current invention provides systems and method for reducing emissions of gaseous pollutants such as carbon monoxide, nitric oxide and nitrogen dioxide. The invention utilizes at least one catalyst bed and at least one fluidizable bed of sorbent material. The curr... | 02/13/2007 |
| 7146800 | Exhaust purification device and exhaust purification method of internal combustion engine An exhaust purification device, including a NOx storing catalyst comprised of a precious metal catalyst and NOx absorbent, arranged in an engine exhaust passage, which increases the ratio of the nitrogen dioxide to the nitrogen monoxide produce... | 12/12/2006 |
| 7138358 | Catalyzed diesel particulate matter filter with improved thermal stability A catalyzed diesel particulate matter exhaust filter with improved diesel particulate matter oxidation activity and thermal stability including a porous filter substrate for filtering the diesel particulate matter washcoated with high surface area support alumina, t... | 11/21/2006 |
| 7137248 | Method and device for controlling an internal combustion engine A device and a method are described for controlling an internal combustion engine, in particular an internal combustion engine having an exhaust gas aftertreatment system. A parameter is determined which characterizes the intensity of a reaction in the exhaust gas a... | 11/21/2006 |
| 7104051 | Exhaust gas purification device The invention provides an exhaust gas purification device that can prevent deterioration of the emission during a regeneration process for a particular filter for trapping particulates contained in the exhaust gas. Particulate filter regeneration timing deter... | 09/12/2006 |
| 7093432 | Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which the exhaust gas containing NOx gas passes and a catalyst so disposed in the exhaust gas duct that it contacts with the ... | 08/22/2006 |
| 7081231 | Method and system for the combination of non-thermal plasma and metal/metal oxide doped γ-alumina catalysts for diesel engine exhaust aftertreatment system The present disclosure pertains to a system and method for treatment of oxygen rich exhaust and more specifically to a method and system that combines non-thermal plasma with a metal doped γ-alumina catalyst. Current catalyst systems for the treatment of oxygen ric... | 07/25/2006 |
| 7078004 | Diesel oxidation catalyst The present invention relates to a method and article for treating a diesel engine exhaust stream. The stream is contacted with an upstream catalytic composition having a cerium component and/or a zeolite component to reduce the quantity and amount of the particulat... | 07/18/2006 |
| 7062904 | Integrated NOand PM reduction devices for the treatment of emissions from internal combustion engines One aspect of the invention relates to a particulate filter useful in treating exhaust from a diesel-power vehicle. The particulate filter comprises filter elements for removing particulate matter and an ammonia SCR catalyst. Ammonia can be produced during regenerat... | 06/20/2006 |
| 7051521 | Exhaust aftertreatment system A particulate filter integrally carrying an oxidation catalyst is arranged in an exhaust pipe through which exhaust gas from a diesel engine flows. A NOx-absorption reduction catalyst is arranged in the exhaust pipe and downstream of the particulate filte... | 05/30/2006 |
| 7052532 | High temperature nanofilter, system and method A filter, system and method is provided for filtering nanoparticles in a hot gas, namely particles about 200° C. and further particularly >about 450° C. including diesel exhaust. The filter includes filter media material composed of fibro... | 05/30/2006 |
| 7040086 | Exhaust emission control system of internal combustion engine An exhaust purifying device is arranged in an exhaust gas passage extending from an internal combustion engine. The exhaust purifying device includes a NOx trapping catalyst that traps NOx in the exhaust gas when an exhaust air/fuel ratio is leaner than stoichiometr... | 05/09/2006 |
| 7033558 | Method for eliminating traces of hydrocarbons from gas streams The invention refers to a method for removing traces of hydrocarbons, particularly propane, from gas flows. The conversion of hydrocarbons into carbon oxides is achieved by loading suitable carrier materials, such as e.g. TiO2 or Al2O3 | 04/25/2006 |
| 7010910 | Exhaust gas purification apparatus An exhaust gas purification apparatus for purifying exhaust gas exhausted from a diesel internal combustion engine and containing therein harmful substances including particulates, NOx, HC and CO, at least, comprises a removal part for trapping and removing particul... | 03/14/2006 |
| 6973776 | Exhaust gas aftertreatment systems A system for effective NOx control in a diesel or other lean burn internal combustion engine is presented. The system includes a urea-based SCR catalyst having an oxidation catalyst coupled upstream of it and an ALNC coupled upstream of the oxidation catalyst. This ... | 12/13/2005 |
| 6971230 | Method for the post-treatment of exhaust gases by subsequent injection of fuel in a diesel-type internal combustion engine provided with a pre-catalyst and a particle filter A process is proposed for exhaust gas aftertreatment by afterinjection of fuel in a diesel internal combustion engine with a precatalyst and a particulate filter, in which process the afterinjection NE is performed as a function of the temperature in the area of the... | 12/06/2005 |
| 6968682 | Method and device for controlling an internal combustion engine with an exhaust treatment system In a method and device for controlling an internal combustion engine having an exhaust treatment system, a quantity characterizing the status of the exhaust treatment system is determined on the basis of at least one operating parameter of the internal combustion en... | 11/29/2005 |
| 6968681 | Method and device for aftertreatment of exhaust gases from combustion engines The invention relates to a device and a method for the aftertreatment of exhaust gases from combustion engines, in particular from internal combustion engines. The device according to the invention and the method are intended to be of simple construction, should be ... | 11/29/2005 |
| 6962681 | Methods and systems for reducing or eliminating the production of pollutants during combustion of carbon-containing fuels Systems and apparatus for increasing combustion efficiency during combustion of a carbon-containing fuel such as a fossil fuel. The systems and apparatus utilize catalytically reactive particles within a reaction chamber, typically silica or alumina, that interact w... | 11/08/2005 |
| 6962045 | Exhaust gas apparatus and method for purifying exhaust gas in internal combustion engine A diesel particulate filter 14 that traps particulate matters in an exhaust gas and a NOx trap catalyst 13 that traps NOx in the exhaust gas are disposed in an exhaust passage (10) in an internal combustion engine (1). When a regeneration... | 11/08/2005 |
| 6959542 | Apparatus and method for operating a fuel reformer to regenerate a DPNR device An emission abatement assembly includes one or more DPNR devices for removing both NOX and particulate soot from the exhaust gas of an internal combustion engine. Reformate gas from a fuel reformer is used to selectively regenerate the DPNR device or devi... | 11/01/2005 |
