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| Number | Title | Issue Date |
| 8017084 | Ammonia injection grid for a selective catalytic reduction system An ammonia injection grid for a selective catalytic reduction (SCR) system that provides uniform distribution of ammonia to the SCR catalyst in NOx reduction systems for heat recovery steam generation systems, packaged boilers, simple cycle catalyst syste... | 09/13/2011 |
| 7776280 | Method and apparatus for selective catalytic reduction of NOx An apparatus comprises parallel first and second exhaust gas passageways, a urea injection system, a hydrolysis catalyst, and an SCR catalyst. The urea injection system is configured to inject urea into the first exhaust gas passageway. The hydrolysis catalyst is po... | 08/17/2010 |
| 7691340 | Catalytic converter A catalytic converter having a pair of catalytic converter members disposed in a housing. A pair of catalytic converter members is disposed within the housing along a longitudinal axis of the housing. A annular structure is disposed within the housing between the pa... | 04/06/2010 |
| 7670569 | Combustion furnace humidification devices, systems & methods An injection device for humidifying a reactor space and injecting and dispersing reagents into the humidified reactor space, including an exterior injection duct for high-velocity gas injection and at least one interior injector for reagent and humidifying agent inj... | 03/02/2010 |
| 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 |
| 7409823 | Method and apparatus for delivery of supplemental material to an exhaust gas feedstream with supplemental air assistance A method and system for introducing supplemental material to an exhaust aftertreatment device, including: a delivery system, an air pump operable to input pressurized air to the delivery system, and a turbosupercharger of an internal combustion engine operable to de... | 08/12/2008 |
| 7404938 | Emission control system Methods and apparatus utilizing hydrogen peroxide are useful to reduce NOx, SOx and mercury (or other heavy metal) emissions from combustion flue gas streams. Continuous concentration of hydrogen peroxide to levels approaching or exceeding propellant-grade hydrogen ... | 07/29/2008 |
| 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 |
| 7399451 | Pollution control Device for pollution control where a polluted stream of air or gas is purified from both oxidisable material and nitrogen oxides simultaneously by a combination of regenerative high temperature treatment and catalytic treatment. ... | 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 |
| 7381379 | Sorbent re-circulation system for mercury control A flue gas purification system comprising in the flue gas stream an electrostatic precipitator, mercury sorbent injection and a two-stage electrostatic separator, and wherein the mercury sorbent injection is positioned between the electrostatic precipitator and the ... | 06/03/2008 |
| 7377102 | Device and method for heating exhaust gas A device and method for heating exhaust gas from the combustion of fossil fuel upstream of an emissions control device, especially a diesel particulate filter. A conduit receives an exhaust gas flow, and is in fluid communication with the emissions control device fo... | 05/27/2008 |
| 7364710 | System for decomposing organic compound A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas b... | 04/29/2008 |
| 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 |
| 7351639 | Increasing an electrical resistance of a resistor by oxidation or nitridization A method and structure for increasing an electrical resistance of a resistor that is within a semiconductor structure, by oxidizing or nitridizing a fraction of a surface layer of the resistor with oxygen/nitrogen (i.e., oxygen or nitrogen) particles, respectively. ... | 04/01/2008 |
| 7344683 | Exhaust gas catalytic converter The present invention is intended to ensure the improvement in catalytic performance of an exhaust gas catalytic converter, which is an essential performance thereof, ensure the thermal resistance thereof and downsize the converter, i.e., improve the arrangeability ... | 03/18/2008 |
| 7335340 | Flue gas desulfurization apparatus and flue gas desulfurization system A flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugate... | 02/26/2008 |
| 7294315 | Method and apparatus for disposing of fluorine-containing compound by decomposition Fluorine compounds such as C2F6, CF4, CHF3, SF6 and NF3, are made in contact with a fluorine compound decomposition catalyst and a catalyst the decomposition oft least one of CO, SO2F2... | 11/13/2007 |
| 7291313 | NOx removal system for boilers The invention provides a NOx removal system for use in a boiler for realizing further reduction in NOx. Loading means for loading a reducing agent is provided at the outlet of a gas passageway in the boiler body, and a NOx removal catalyst is provided downstream of ... | 11/06/2007 |
| 7285250 | Apparatus for treating perfluorocompound gas In order to prevent exhaust pipe for exhausting perfluorocompound (PFC) decomposition gas after washing from corrosion, a mist separating apparatus is provided at a rear stage of the washing tower for washing the PFC decomposition gas. The corrosion of the exhaust p... | 10/23/2007 |
| 7276212 | Exhaust articles for internal combustion engines Provided is a base metal undercoat containing catalyst and an exhaust article containing the catalyst. The catalyst contains a base metal undercoat with an oxygen storage component, and at least one catalytic layer. Also provided are methods for preparing the cataly... | 10/02/2007 |
| 7267114 | Wildland fire vehicle escape system A wildland fire truck engine emergency combustion oxygen supply apparatus for the prevention of stalling of the engine in an oxygen depleted environment. The apparatus has a storage tank mounted on the vehicle for the storage of oxygen, nitrous oxide, or air, a feed... | 09/11/2007 |
| 7263822 | Catalytic conversion of fuel and converter therefor For a process for the catalytic conversion of furl for removing oxides of nitrogen from exhaust gases of internal combustion engines, in which fuel and a part-stream of the exhaust gas or of the intake air are converted in a converter, the fuel and the part-stream o... | 09/04/2007 |
| 7261755 | Heat-resistant filter layer, filter body, and process for producing the filter layer and the filter body Within the framework of the purification of exhaust gases of mobile internal combustion engines, filter materials are subjected to particularly high thermal and dynamic conditions. As a result, it is advantageous to use filter materials together in a stable and dura... | 08/28/2007 |
| 7252858 | System and method for abating the simultaneous flow of silane and arsine A system and method for abating a simultaneous flow of silane and arsine contained in an exhaust gas of DRAM processing chamber (12). The system includes a CVD abatement apparatus (20) and a resin-type absorber (22). The CVD abatement apparatus ... | 08/07/2007 |
| 7238327 | Method of attaching internal heat shield in automotive catalytic converters A catalytic converter and method for its assembly including an external shell formed in two halves containing a catalytic substrate, two internal shields and two-piece inlet and outlet cones. The inlet and outlet cones are attached as halves to each side of the exte... | 07/03/2007 |
| 7220390 | Microchannel with internal fin support for catalyst or sorption medium This invention relates to an apparatus, comprising: at least one process microchannel having a height, width and length, the height being up to about 10 mm, the process microchannel having a base wall extending in one direction along the width of the process microch... | 05/22/2007 |
| 7216481 | Method and apparatus for regeneration of engine exhaust aftertreatment devices An improved method and apparatus for providing reformate into an engine exhaust stream including aftertreatment devices such as a particulate trap and an NOx filter regenerable by hydrogen-rich reformate injected into the engine exhaust ahead of the aftertreatment d... | 05/15/2007 |
| 7214254 | Method of removing mercury from mercury contaminated materials A method of reducing mercury levels in a mercury contaminated material using microwave energy. The method comprises the steps of (a) placing the mercury contaminated material in a microwave reactor; (b) providing a stream of gas in the microwave reactor, the stream ... | 05/08/2007 |
| 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 |
| 7198762 | Device for treating an internal combustion engine exhaust gases The invention concerns a device comprising at least an electrostatic filter (20) with corona effect comprising an emitting structure (29, 32, 33) and a collector structure (24). The invention is characterized in that the collector structure (... | 04/03/2007 |
| 7195742 | Preferential oxidation reactor and process An apparatus for preferential oxidation of carbon monoxide in a reformate flow includes a reactor defining a flow path for a reformate flow; at least one catalyst bed disposed along the flow path; and a distributor for distributing oxygen from an oxygen source to th... | 03/27/2007 |
| 7182919 | Sulphurous acid generator with air injector This invention presents a sulphurous acid generator which employs a combination of novel blending contact and mixing mechanisms which maximize the efficiency and duration of contact between sulphur dioxide gas and water to form sulphurous acid in an open nonpressuri... | 02/27/2007 |
| 7178331 | Exhaust system for lean burn IC engines An exhaust system (10) for a lean-burn internal combustion engine comprises a nitrogen oxide (NOx) absorbent (28), a catalyst (30) for catalyzing the selective catalytic reduction (SCR) of a NOx with a NOx specif... | 02/20/2007 |
| 7166262 | Control for ammonia slip in selective catalytic reduction A method of operating a selective catalytic reduction (SCR) system includes detecting at least one of an ammonia level and a nitrogen oxide level within a cross-sectional area of a chamber at a downstream end of a SCR catalyst. The cross-sectional area is divided in... | 01/23/2007 |
| 7162921 | Measuring device for measuring the volume flow or the substance properties of a gas, whose direction of flow can reverse A device for measuring the volume flow or other substance properties of a gas, whose direction of flow can reverse. The arrangement contains a specially designed Y-piece, which is used for branching into direction-dependent flow paths and can be used at the same tim... | 01/16/2007 |
| 7163615 | Method of treating substance to be degraded and its apparatus There is provided a method of treating a substance to be degraded comprising the steps of: degrading the substance to produce a degraded product; contacting the product obtained in the degrading step with a liquid; and entrapping a component of the product not trapp... | 01/16/2007 |
| 7146802 | Reducing NO emissions with a staged catalyst The conversion of NOx to nitrogen in the exhaust of a lean burn engine using a hydrocarbon assisted-selective catalytic reduction system is benefited by a two-stage oxidation catalyst-reduction catalyst SCR reactor. The character and quantity of the oxida... | 12/12/2006 |
| 7144556 | Method and apparatus for decomposition of substance contained in gas A decomposition apparatus and a decomposition method using the apparatus in which a substance to be decomposed is decomposed with high efficiency are disclosed. A decomposition apparatus includes condensation means for increasing the concentration of the substance, ... | 12/05/2006 |
