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| Number | Title | Issue Date |
| 8133444 | Exhaust gas purification system for internal combustion engine An object of the present invention is to suppress, in a system in which an NOx selective catalytic reduction catalyst and a particulate filter are provided in an exhaust passage of an internal combustion engine, discharge of ammonia from the NOx selective catalytic ... | 03/13/2012 |
| 7780922 | Apparatus for producing amorphous silica ash The invention provides apparatus and a method for exothermic treatment of feed material to provide an ash. The apparatus includes a housing extending about a central axis and having first and second ends, and a central mixing zone adjacent the first end. A material ... | 08/24/2010 |
| 7534400 | Wet scrubbing apparatus for controlling NOx emission An apparatus for controlling NOx emissions which includes a chamber having a wall surface and an interior, a flue gas entrance and a flue gas exit for a flue gas to enter and exit the interior of the chamber, a gas quenching zone in which the temperature of the gas ... | 05/19/2009 |
| 7462333 | Device for the purification of exhaust gases consisting of fluorine-containing compounds in a combustion reactor In a device for the purification of exhaust gases, especially exhaust gases consisting of fluorine-containing compounds, bore holes (7,8) are made in a ring burner (5) for the separate supply of combustion gas and oxygen on a single hole circle around ... | 12/09/2008 |
| 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 |
| 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 |
| 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 |
| 7367182 | Exhaust emission control device for an internal combustion engine A forced regeneration device which performs regeneration of a particulate filter includes oxidation catalysts (23, 24a) disposed upstream from the particulate filter or in said particulate filter and a burner (30) located upstream from the oxida... | 05/06/2008 |
| 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 |
| 7247185 | Device for treatment of a gas flow Device for treatment of a gas flow having at least one body (3) that is adapted to cause a conversion in the composition of the gas. The device is characterized in that the body (3) has a modular construction comprising a plurality of sections (26, ... | 07/24/2007 |
| 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 |
| 7240483 | Pre-combustors for internal combustion engines and systems and methods therefor Described here are systems and methods for treating fuel injected exhaust streams. In general, the systems comprise a fuel injector, a pre-combustor, and a fuel combustor. The methods described herein include methods for regenerating a NOx trap or a DPF, ... | 07/10/2007 |
| 7217309 | Microporous paper filter for particulates A microporous paper filter (10) for particulates emitted together with the exhaust gases of internal combustion engines, made in the form of a folded up sheet to form a “Greek key” i.e. having several filtering layers (13) placed substantially para... | 05/15/2007 |
| 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 |
| RE39596 | Method and apparatus for the destruction of volatile organic compounds A system for the destruction of volatile organic compounds while generating power. In a preferred embodiment the system comprises a combustor and a reaction chamber connected to an exit of the combustor. A primary inlet to the combustor supplies a primary fuel to th... | 05/01/2007 |
| 7056480 | Fuel reforming system A fuel reforming system comprises a reforming catalyst section (4) performing reformate reactions on supplied fuel gas, a membrane hydrogen separator (5) extracting hydrogen from the reformate gas, a supply device (8–14) supplying combustion g... | 06/06/2006 |
| 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 |
| 7040084 | Exhaust emission aftertreatment An engine control system in a vehicle including a diesel engine in the vehicle, a diesel fuel tank for supplying fuel to the diesel engine, a gasoline tank in the vehicle, a reformer for providing partial oxidation products from gasoline contained in the gasoline ta... | 05/09/2006 |
| 7019190 | Soil remediation system A process and apparatus for energy efficient remediation of soil contaminated with hydrocarbons, including desorbing the hydrocarbon contaminants from a bed of the soil by thermal desorption in a treated desorption chamber (20) and thereafter combusting the c... | 03/28/2006 |
| 7004087 | High temperature gas reforming cyclo-incinerator A high temperature gas reforming cyclo-incinerator, using reformed water and strongly swirling inlet air in its interior to burn up wastes. The incinerator has a dust collecting structure designed to almost completely remove circulating dust and other harmful impuri... | 02/28/2006 |
| 6964729 | Oxidizing undesired compounds resident within liquid absorbent compounds, reducing atmospheric pollution, regenerating a liquid absorbent and conserving fuel usage associated with reboiler utilization An improved method and apparatus for oxidizing undesired compounds residing within a liquid glycol based absorbent wherein the compounds are heated within a reboiler chamber to their boiling point to effectuate production of vaporized effluents. The absorbent's vapo... | 11/15/2005 |
| 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 |
| 6946105 | Process and apparatus for the recovery of metal oxide particles A process for the recovery of metal oxides from a solution containing metallic salts by spray roasting of these solutions. The process is particularly suitable for spray roasting spent pickling acids. The process feeds the solution to a reactor for spray roasting of... | 09/20/2005 |
| 6919047 | Reduction of nitrogen oxides in diesel exhaust gases and fuel injection system A method for reducing NOx in lean exhaust gases to N2 includes injecting a fuel into the exhaust gases and passing the exhaust gases and fuel mixture through a catalyst to reduce the NOx to N2. The catalyst may be (a) a pe... | 07/19/2005 |
| 6902713 | Method for partially oxidizing a gas stream comprising hydrogen sulphide and ammonia A method for partially oxidizing, in a Claus furnace, at least one gas containing hydrogen sulfide and ammonia with at least one gas rich in oxygen. The residual ammonia content at the outlet of the furnace is measured with a laser diode. Based upon this measurement... | 06/07/2005 |
| 6869577 | Systems and methods for purifying exhaust gas emission from fuel reforming device A purifying system includes a purifying device for purifying a combustion-exhaust gas emitted from a fuel reforming device, a flow control valve for introducing anode-off gas discharged from a fuel cell into the purifying device through an anode-off-gas supply pipe,... | 03/22/2005 |
| 6808693 | Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive Methods and apparatus employing inert gases injected into the lower level of sloping underground oil-bearing formations as a driving mechanism and water injected into the upper level of the formations as a gas blocking mechanism for increasing and extending the prod... | 10/26/2004 |
| 6758035 | Method and apparatus for purging SOX from a NOX trap A method of operating a fuel reformer to regenerate a NOX trap includes operating the fuel reformer to produce a reformate gas comprising hydrogen and carbon monoxide and advancing reformate gas through the NOX trap so as to regenerate the NO | 07/06/2004 |
| 6722124 | Catalytic converter A catalytic converter assembly comprises a housing having an exhaust gas inlet and an exhaust gas outlet. A first chamber enclosed by the housing receives incoming exhaust gas and a second chamber contains a catalyst bed. Gas flows from the first chamber to the seco... | 04/20/2004 |
| 6655128 | Purging of an NOx trap A lean burn engine having a lean NOx trap in the form of a matrix of narrow flow passages is described. The engine is provided with means for injecting reducing gases upstream of the NOx trap matrix (16) to purge the trap periodically. A flow straightenin... | 12/02/2003 |
| 6596054 | Method for carbon monoxide reduction during thermal/wet abatement of organic compounds A method and system for retrofitting an integrated scrubber to provide maximum oxygen content in a controlled decomposition oxidation (CDO) abatement process. The system includes a thermal/wet integrated scrubber, and a compressed air supply for supplying... | 07/22/2003 |
| 6551381 | Method for carbon monoxide reduction during thermal/wet abatement of organic compounds A method and system for retrofitting an integrated scrubber to provide maximum oxygen content in a controlled decomposition oxidation (CDO) abatement process. The system includes a thermal/wet integrated scrubber, and a compressed air supply for supplying... | 04/22/2003 |
| 6527828 | Oxygen enhanced CDA modification to a CDO integrated scrubber A method and system for retrofitting an integrated scrubber to provide maximum oxygen content in a controlled decomposition oxidation (CDO) abatement process including a thermal/wet integrated scrubber, and a compressed air supply for supplying air to an ... | 03/04/2003 |
| 6485683 | Headquarter vehicles for chemical biological nuclear defense Pyro sulfuric acid is employed to decontaminate air. Contaminated air is contacted with pyro sulfuric acid in a pyro sulfuric acid system, and released as decontaminated air. The system can be especially useful in a chemical/biological/nuclear defense mod... | 11/26/2002 |
| 6482367 | Method and apparatus for removing harmful components in an exhaust gas Apparatus for removing harmful components of a perfluorocarbon gas or a perfluorocompound. The apparatus includes a first water scrubber for washing an exhaust gas containing a perfluorocarbon or a perfluorocompound discharged from a manufacturing equipme... | 11/19/2002 |
| 6455012 | Acid gas burner and reactor apparatus and method An acid gas burner and reactor apparatus, and method when used in the Claus process, are improved over the prior art by the provision of a substantially continuous circular slot for the flow of a reactant gas from an annular conduit into the open outflow ... | 09/24/2002 |
| 6357367 | Method for NOx reduction by upper furnace injection of biofuel water slurry In an improved method for reducing nitrogen oxide emissions from a furnace wherein at least one injector is attached to the furnace above the primary combustion zone a biomass or biowaste and water slurry is injected into the flue gas through the injector... | 03/19/2002 |
| 6315960 | Apparatus for treating pyrophoric gases and toxic global warming gases A mixing chamber receives pyrophoric gas for mixing with oxygen prior to discharge into an upright housing of the apparatus. Tubular members within the housing define annular passageways through which the mixed gas and oxygen flow in a serpentine manner w... | 11/13/2001 |
| 6312651 | Apparatus for burning a combustible gas containing hydrogen sulfide Apparatus for recovering sulphur from a combustible gas stream comprising hydrogen sulphide is provided. The combustible gas stream, air and oxygen, or an oxygen-rich stream, are fed via a coaxial burner into an elongate furnace thereby creating a longitu... | 11/06/2001 |
| 6290488 | Heat-storage incinerator An incinerator with a heat-storage capability is disclosed. The incinerator has a housing with multiple communicating chambers defined therein, heat-storing medium received in each chamber, a heater mounted in the housing, an inlet tube and an outlet tube... | 09/18/2001 |
