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| Number | Title | Issue Date |
| 8182777 | Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least o... | 05/22/2012 |
| 8178063 | Fabrication method of zeolite honeycomb type catalyst for reducing nitrogen oxide The present invention relates to conversion of exhaust gas containing nitrogen oxide (NOx) such as NO, NO2 and N2O into N2 and H2O through catalytic reaction with injection of a reducing agent such as ammonia an... | 05/15/2012 |
| 8173088 | Method, system and apparatus for liquid injection into a gas system A method for injection reductant into an exhaust gas and for evaporating and decomposing the reductant at an elevated temperature includes providing an exhaust pipe having an interior surface and disposing the pipe in fluid communication with and upstream of a catal... | 05/08/2012 |
| 8173087 | Gasoline engine emissions treatment systems having particulate traps Provided are exhaust systems and components suitable for use in conjunction with gasoline direct injection (GDI) engines to capture particulates in addition to reducing gaseous emission such as hydrocarbons, nitrogen oxides, and carbon monoxides. Exhaust treatment s... | 05/08/2012 |
| 8142745 | Separation of carbon dioxide from nitrogen utilizing zeolitic imidazolate framework materials The present invention relates to the selective separation of carbon dioxide (“CO2”) from nitrogen (“N2”) in streams containing both carbon dioxide and nitrogen utilizing a zeolitic imidazolate framework (“ZIF”) material. Preferably,... | 03/27/2012 |
| 8142746 | Separation of carbon dioxide from methane utilizing zeolitic imidazolate framework materials The present invention relates to the selective separation of carbon dioxide (“CO2”) from methane (“CH4”) in streams containing both carbon dioxide and methane utilizing a zeolitic imidazolate framework (“ZIF”) material. Preferably, ... | 03/27/2012 |
| 8105559 | Thermally regenerable nitric oxide adsorbent A method of reducing nitrogen oxides (NOx) present in a lean gas stream comprising nitric oxide (NO) comprises the steps of: (i) net adsorbing NO per se from the lean gas stream in an adsorbent comprising palladium and a cerium oxide at below 200° C.; (i... | 01/31/2012 |
| 8105560 | System for treating a gas stream A system for treating a gas stream containing nitrogen oxides (NOx) and particulates flowing in the system comprises means for injecting a source of ammonia (NH3) or urea (CO(NH2)2) into a flowing exhaust gas upstream of a... | 01/31/2012 |
| 8101146 | Catalysts for the reduction of ammonia emission from rich-burn exhaust A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a second component comprising a second substrate containing an a... | 01/24/2012 |
| 8101304 | Process for the concentration of noble metals from fluorine-containing fuel cell components The present invention relates to a process for the concentration of noble metals from fluorine-containing components of fuel cells, for example from PEM fuel cell stacks, DMFC fuel cells, catalyst-coated membranes (CCMs), membrane electrode assemblies (MEAs), cataly... | 01/24/2012 |
| 8101145 | Exhaust treatment system and method of operation An exhaust treatment system is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The exhaust treatment system includes an exhaust source, a reductant source, a nitrogen oxide (NOx) reduction catalyst, a sen... | 01/24/2012 |
| 8101147 | Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least o... | 01/24/2012 |
| 8092767 | Method of decomposing nitrogen dioxide A method of decomposing nitrogen dioxide to nitrogen monoxide in an exhaust gas of a lean-burn internal combustion engine, such as a diesel engine, comprises adjusting the C1 hydrocarbon:nitrogen oxides (C1 HC:NOx) ratio of the exhaust gas to from 0.1 to ... | 01/10/2012 |
| 8080224 | Catalyst for the conversion of carbon monoxide Use of a catalyst composition comprising a metal selected from the group consisting of ruthenium, rhodium, nickel and combinations thereof, on a support selected from the group consisting of a beta-zeolite, mordenite and faujasites, is taught for carbon oxide methan... | 12/20/2011 |
| 8071061 | Catalyst for an exhaust gas aftertreatment system for internal combustion engines The invention relates to a device for the catalytic treatment of exhaust gases of motor vehicles which comprises a catalyst substrate designed as a hollow cylinder, an inlet-side and an outlet-side gas baffle and an outer wall, wherein the gas baffles enclose the ca... | 12/06/2011 |
| 8062617 | Process and catalyst system for SCR of NO Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a sec... | 11/22/2011 |
| 8057767 | Base metal oxides oxidation catalyst Chemical species such as nitrogen oxide (NO), carbon monoxide, and low molecular weight hydrocarbons (e.g., C1-C5 and saturated or ethylenically unsaturated) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, o... | 11/15/2011 |
| 8017097 | ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts The present invention relates to application of catalysts for the Selective Catalytic Reduction of oxides of Nitrogen using N-containing reductant. The catalysts are characterized as phase pure lattice oxide materials into which catalytically active cations are inco... | 09/13/2011 |
| 7998443 | Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least o... | 08/16/2011 |
| 7976802 | Treatment plant for pollutants contained in the exhaust gas of an internal-combustion engine and method using same A plant for treating pollutants contained in the exhaust gases of an internal-combustion engine includes an exhaust line (10) with an oxidation catalyst (12), a selective catalytic reduction catalyst (16) including a chemically active porous bod... | 07/12/2011 |
| 7964167 | Method and architecture for oxidizing nitric oxide in exhaust gas from hydrocarbon fuel source with a fuel lean combustion mixture An after-treatment system architecture and method for oxidizing the nitric oxide component of an exhaust stream from a hydrocarbon fueled power source operated with a fuel lean combustion mixture. ... | 06/21/2011 |
| 7947238 | Oxidation catalyst with low CO and HC light-off and systems and methods An oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO) and the reduction of nitrogen oxides (NOx) from a diesel engine and methods of exhaust gas treatment are disclosed. More p... | 05/24/2011 |
| 7922988 | Multilayered catalyst compositions A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Engine exhaust treatment system and methods of using the same are also pro... | 04/12/2011 |
| 7922987 | Catalytically coated diesel particle filter, process for producing it and its use A diesel particulate filter with an oxidation catalyst comprising platinum and palladium deposited thereon is described. Addition of HC storage components to the oxidation catalyst allows the conversion of hydrocarbons and carbon monoxide to be improved significantl... | 04/12/2011 |
| 7892507 | Gas processing for catalytically oxidizing carbon monoxide and hydrocarbons in the presence of a metal/silica-containing zirconia catalyst The processing of gases, in particular the exhaust gas of an internal combustion/diesel engine, entails catalytically oxidizing the carbon monoxide and hydrocarbons contained therein in an oxygen-rich medium, in the presence of a metal oxidation catalyst that includ... | 02/22/2011 |
| 7892508 | Internal combustion engine exhaust gas purification apparatus and method for controlling same An internal combustion engine exhaust gas purification apparatus purifies exhaust gas using a NOx storage-reduction catalyst unit and a NOx selective reduction catalyst unit. The NOx selective reduction catalyst unit is provided downstream of the NOx storage-reducti... | 02/22/2011 |
| 7858059 | Molecular sieves for improved hydrocarbon traps Molecular sieves and the use of such materials as hydrocarbon traps, particularly for reducing the emissions associated with the combustion of hydrocarbon fuels are described. Specifically, the use of molecular sieves such as zeolites as adsorbents for hydrocarbon g... | 12/28/2010 |
| 7850935 | Process and catalyst system for NOx reduction Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of an oxygen-containing organic reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed compri... | 12/14/2010 |
| 7829048 | Electrically heated catalyst control system and method An exhaust treatment system comprises M electrically heated substrates and a heater control module. The M electrically heated substrates are coated with a catalyst material and arranged in series to receive exhaust gas of an engine. M is an integer greater than one.... | 11/09/2010 |
| 7824635 | Filter for exhaust gas from diesel engine and equipment A particulate material removing filter for exhaust gas from a diesel engine is provided. The particulate material removing filter is formed by laminating metal laths having an oxidation catalyst layer containing a noble metal that oxidizes nitrogen oxide in exhaust ... | 11/02/2010 |
| 7820123 | Device for the purification of exhaust gas As a device for the purification of exhaust gas, a three-way catalyst A purifying hydrocarbon, carbon monoxide and nitrogen oxide in the vicinity of theoretical air-fuel ratio is disposed at an upstream side of the exhaust gas and an adsorption catalyst B provided w... | 10/26/2010 |
| 7811536 | Nitrogen oxides storage catalysts containing cobalt Nitrogen oxides (NOx) storage catalysts comprising cobalt and barium with a lean NOx storage ratio of 1.3 or greater. The NOx storage catalysts can be used to reduce NOx emissions from diesel or gas combustion engines by c... | 10/12/2010 |
| 7799298 | Catalyst arrangement and method of purifying the exhaust gas of internal combustion engines operated under lean conditions The invention relates to a catalyst arrangement for purifying the exhaust gases of internal combustion engines operated under lean conditions. It is proposed that a thinwalled, porous carrier be coated on one side with a nitrogen oxide storage catalyst and on the ot... | 09/21/2010 |
| 7794679 | Catalyst and method for purification of diesel engine exhaust gas The invention provides a catalyst for catalytically reducing nitrogen oxides in diesel engine exhaust gas by use of unburnt carbon contained in the diesel engine exhaust gas as a reducing agent, the catalyst comprising: (a) an acid... | 09/14/2010 |
| 7790127 | NOemission control system for hydrocarbon fueled power source A method of reducing NOx in a lean burn engine exhaust stream from a hydrocarbon burning engine may be first passing the exhaust stream over a thrifted diesel oxidation catalyst that substantially completes the oxidation of carbon monoxide to carbon dioxi... | 09/07/2010 |
| 7767175 | Ammonia SCR catalyst and method of using the catalyst A DPF with an SCR catalyst and a method for selectively reducing nitrogen oxides with ammonia, filtering particulates, and reducing the ignition temperature of soot on a DPF are provided. The catalyst includes a first component of copper, chromium, cobalt, nickel, m... | 08/03/2010 |
| 7758833 | Exhaust gas purifying apparatus for internal combustion engine An exhaust gas purifying apparatus for an internal combustion engine is provided with a NOx removing device and a particulate filter in an exhaust system. A temperature of the exhaust system is detected. A switching control is performed for alternately performing a ... | 07/20/2010 |
| 7758832 | Method of decomposing nitrogen dioxide A method of decomposing NO2 to NO in an exhaust gas of a lean-bum internal combustion engine comprises the steps of contacting an acidic metal oxide selected from the group consisting of zeolites, tungsten-doped titania, silica-titania, zirconia-titania, ... | 07/20/2010 |
| 7758834 | Layered catalyst composite A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjun... | 07/20/2010 |
| 7754171 | Multilayered catalyst compositions A multilayered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Provided is a catalytic material of at least four layers in conjunct... | 07/13/2010 |
