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| Number | Title | Issue Date |
| 8163249 | Multiple-stage granular moving bed apparatus A multiple-stage granular moving-bed apparatus comprises a first integrated moving-bed unit, a second integrated moving-bed unit and at least one granular material. The first integrated moving-bed unit, having a first inlet part for providing a raw gas flowing there... | 04/24/2012 |
| 8158067 | NOreduction device for diesel vehicles A NOx reduction device for diesel vehicles includes an Lean NOx Trap (LNT) serving as a NOx filter, a Diesel Particulate Filter (DPF) located downstream of the LNT, and a Hydrocarbon-Selective Catalyst Reduction (HC-SCR) catalyst provided on the LNT. The HC-SCR cata... | 04/17/2012 |
| 8128880 | NOx reduction catalyst and exhaust system using the same An NOx reduction catalyst and an exhaust system using the same may include an NOx reduction catalyst mounted at an exhaust pipe through which exhaust gas passes, wherein the NOx reduction catalyst includes first and second catalyst layers coated on a carrier, the fi... | 03/06/2012 |
| 8105544 | Exhaust gas treating apparatus An exhaust gas treating apparatus includes an upstream honeycomb structure and a downstream honeycomb structure each provided along an exhaust gas flowing direction of the exhaust gas treating apparatus. Each of the plurality of honeycomb structures includes at leas... | 01/31/2012 |
| 8105543 | Silicon carbide based structure for filtrating gas The present invention relates to a structure, for filtering particulate-laden gases, of the honeycomb type and containing an assembly of adjacent ducts or channels, whose axes are parallel to one another, separated by porous walls, the ducts being sealed off by plug... | 01/31/2012 |
| 8057745 | Catalyst system for vehicle exhaust gas purification devices, exhaust gas purification device using the same, and method for purification of exhaust gases The present invention provides a catalyst system for vehicle exhaust gas purification devices which exhibit excellent capacity of removing nitrogen oxide emissions from internal combustion engine exhaust gases when they are brought into contact with the catalyst eve... | 11/15/2011 |
| 8057746 | Carrier for exhaust-gas purification and exhaust-gas purifier having the carrier A carrier for exhaust-gas purification is able to effectively protect against getting clogged with the particulate matters in a filter having carriers. The carrier is constituted with a web corrugated to have straight and/or zigzag ridges and then wound up into a co... | 11/15/2011 |
| 8043572 | Rolling regeneration diesel particulate trap A rolling regeneration diesel particulate filter and filtering process that utilizes NO produced in the process to generate additional amounts of NO2 than the NO2 produced by the diesel engine. The process includes the step of flowing diesel en... | 10/25/2011 |
| 7988921 | Hexagonal-cell honeycomb catalyzer for purifying exhaust gas A hexagonal-cell honeycomb catalyzer is for purifying an exhaust gas. The catalyzer comprising a support that has a plurality of cells and a purification layer that has an HC absorption layer and a three-way catalyst layer. The HC absorption layer is formed on the h... | 08/02/2011 |
| 7964154 | Diesel particulate control A method and apparatus are provided for reducing emissions of particulates from diesel engines. Exhaust is passed through a diesel particulate filter having at least two stages comprised of (a) a catalyst section having a platinum group metal catalyst on contact sur... | 06/21/2011 |
| 7919051 | Emission treatment system with NSR and SCR catalysts Provided is an emissions treatment system for an exhaust stream, having a NOx storage reduction (NSR) catalyst with a NOx sorbent at a concentration of at least 0.1 g/in3 and a platinum group metal component dispersed on a refractory metal oxide support; ... | 04/05/2011 |
| 7919050 | Exhaust gas purifying apparatus An exhaust gas purifying apparatus is provided for efficiently purifying particulate matter discharged from an internal combustion engine at a lower exhaust gas temperature by adequately disposing of the absorbent material for absorbing hydrocarbon, the combustion c... | 04/05/2011 |
| 7897117 | Catalytic converter with mounting device for a hot exhaust gas oxygen sensor A catalytic converter having a housing holding upstream and downstream catalytic material carrying substrates or bricks includes a ring located between the substrates, the ring having a gap therein for receipt of a mid-bed oxygen sensor. The ring traps a layer of in... | 03/01/2011 |
| 7824628 | Self-regenerative process for contaminant removal from ammonia A method and apparatus for the decontamination of fluid ammonia are described. Liquid or gaseous ammonia is purified of contaminants by passage through an adsorbent bed, the contaminants accumulating in the bed. A portion of the purified ammonia discharged from the ... | 11/02/2010 |
| 7815869 | Catalytic converter with mid-bed sensor A catalytic converter assembly is provided that includes a metallic tubular member having a first end and a second end. A first substrate is disposed within the metallic tubular. A second substrate is disposed within the metallic tubular member. A spacer is axially ... | 10/19/2010 |
| 7767163 | Exhaust treatment devices An exhaust emission control system can include a reformer a fuel source disposed upstream of and in fluid communication with the reformer, and a NOx adsorber disposed downstream of and in fluid communication with the reformer. The NOx adsorber can include... | 08/03/2010 |
| 7736600 | Apparatus for manufacturing a process abatement reactor A thermal reactor for use during the abatement of a semiconductor manufacturing process is provided, including a thermal reaction unit having: an interior porous wall that defines a central chamber, the interior porous wall formed from a plurality of stacked porous ... | 06/15/2010 |
| 7700049 | Methods and apparatus for sensing characteristics of the contents of a process abatement reactor In certain embodiments, an apparatus is provided for use in removing pollutants from a gas stream. The apparatus includes a thermal reaction unit formed from a plurality of stacked porous ceramic rings. At least one of the stacked ceramic sections may be adapted to ... | 04/20/2010 |
| 7691339 | Catalyst temperature control via microwave-induced particle oxidation A particulate filter system for an internal combustion engine including a particulate trap, microwave-absorbing materials located in the particulate trap, and a NOx catalyst located in said particulate trap. ... | 04/06/2010 |
| 7572415 | Catalyst converter and diesel, particulate filter system A holding and sealing material for disposal between a catalyst carrier and a metal shell covering the outer face of the catalyst carrier. The holding and sealing material includes an inorganic fiber mat subjected to needle punching producing needled holes having a d... | 08/11/2009 |
| 7497998 | Gas converter A converter having an exterior shell with a central axis, at least one gas inlet and at least one gas outlet. The exterior shell includes a base and an interior support structure. A number of vertically stacked catalytic chambers within the exterior shell are each i... | 03/03/2009 |
| 7462331 | Oxidation-catalytic separation device An oxidation-catalytic separation device for removing oil and volatile organic components from pressurized gases of a compression system has, proceeding from the inflow side of a tank which contains an oxidation catalyst, at least two chambers with different diamete... | 12/09/2008 |
| 7452512 | Converter assembly with insulated sensor boss A converter assembly includes an outer shell defining an internal cavity that receives first and second catalyst substrates, which are spaced apart from each other to form a gap. A solid inner ring with a sensor boss is installed within the internal cavity. The soli... | 11/18/2008 |
| 7442346 | 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... | 10/28/2008 |
| 7438876 | Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury A selective catalytic reduction apparatus has at least first and last catalyst layers in series for reducing nitrogen oxides in a flue gas, at least one interstage heat exchanger located after the first layer and before the last layer, that lowers flue gas temperatu... | 10/21/2008 |
| 7431905 | Catalyst system and method for the reduction of NO A catalyst system for the reduction of NOx. is provided. The system comprises a catalyst in a first zone comprising a catalyst support, a catalytic metal comprising gallium, and at least one promoting metal selected from the group consisting of silver, gold, vanadiu... | 10/07/2008 |
| 7429365 | Method and system for removing mercury from combustion gas A method for continuously removing mercury from a supply of combustion gas is provided. The method includes introducing SO3 into the supply of combustion gas to oxidize at least a portion of elemental mercury within the supply of combustion gas into ionic... | 09/30/2008 |
| 7425312 | Hydrocarbon trapping device A hydrocarbon trapping layer (25) is formed by coating a hydrocarbon trapping material onto a carrier (21A). A number of exhaust gas passages (34) are formed in the carrier (21A) and a plurality of slits (22) are formed on the carr... | 09/16/2008 |
| 7419644 | Flow directing insert for a reactor chamber and a reactor A flow directing insert for a reactor chamber in a reactor may have a mainly square-shaped cross-section. The chamber has an inlet at one end of the chamber and an outlet at the other end of the chamber and at least one of the walls of the reactor chamber consists o... | 09/02/2008 |
| 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 |
| 7399452 | Meander-type catalytic converter To provide an exhaust system (100) for an internal combustion engine having a housing (10) in which there are provided at least one exhaust inlet port (15b) and another exhaust discharge port (15a), and a catalyst element ( | 07/15/2008 |
| 7393509 | Honeycomb structure The present invention provides a honeycomb structure 1 comprising partition walls 2 so as to form a plurality of cells 3 extending from one end face 42 to the other end face 44, and a plug portion 4 plugging the cell 3 | 07/01/2008 |
| 7390471 | Apparatus and method for catalytic treatment of exhaust gases An exhaust gas treatment apparatus (20) for reducing the concentration of NOx, HC and CO in an exhaust gas stream (18) such as produced by a gas turbine engine (12) of a power generating station (10). The treatment apparatus in... | 06/24/2008 |
| 7384611 | Configurations and methods for effluent gas treatment Methods and configurations are drawn to a plant in which an effluent gas with a sulfur dioxide content of more than 1.5% is mixed with a substantially sulfur dioxide free offgas from a contactor to form a mixed feed gas for a hydrogenation reactor, wherein the mixed... | 06/10/2008 |
| 7384613 | Catalyst for an internal combustion engine The present invention relates to a catalyst for an internal combustion engine, particularly of a motor vehicle, with a housing, which is assembled from at least two housing portions, telescopically inserted one into another in the throughflow direction of the housin... | 06/10/2008 |
| 7371706 | Catalyst for removing hydrocarbons from exhaust gas and method for purification of exhaust gas A catalyst for removing hydrocarbons from exhaust gas containing methane and an excess of oxygen, which comprises palladium or palladium/platinum supported on at least one carrier selected from zirconia, sulfated zirconia and tungsten-zirconia, and a method for trea... | 05/13/2008 |
| 7361209 | Apparatus and process for preparing sorbents for mercury control at the point of use A system for treating a contaminated gas stream is provided that includes a comminution device 204 operable to effect size reduction of a plurality of sorbent particles and form a plurality of comminuted particles, a plurality of nozzles 224 distribute... | 04/22/2008 |
| 7351381 | Gas treatment apparatus The present invention relates to a gas treatment apparatus for treating the exhaust gas stream from an internal combustion engine. The apparatus comprises several compartments within which one or more treatments are to be performed upon a gas flowing through the com... | 04/01/2008 |
| 7347042 | Exhaust gas filter and method for cleaning an exhaust gas An exhaust gas filter for cleaning an exhaust gas of an internal combustion engine, includes at least one strip-shaped filter layer. The filter layer has at least one filter region formed of a material through which a fluid can at least partly flow, for filtering ou... | 03/25/2008 |
| 7347046 | Layout of catalyst of vehicle An exhaust system for a vehicle includes a muffler including end walls and a side wall connected to the end walls enclosing an interior space of the muffler. A first pipe is disposed within the interior space of the muffler and extends from one end of the muffler at... | 03/25/2008 |
