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| Number | Title | Issue Date |
| 8349283 | Metal recovery method, metal recovery apparatus, gas exhaust system and film forming device using same A metal recovery apparatus recovers metal components from an exhaust gas exhausted from a processing chamber in which a thin film is formed on the surface of a target substrate by using a source gas formed of an organic metal compound serving as a source, and scrubs... | 01/08/2013 |
| 8092768 | Advanced particulate matter control apparatus and methods Apparatus and methods for collection and removal of particulate matter, including fine particulate matter, from a gas stream, comprising a unique combination of high collection efficiency and ultralow pressure drop across the filter. The apparatus and method utilize... | 01/10/2012 |
| 8057768 | Device for the purification of diesel exhaust gases The invention relates to a special device for the purification of diesel exhaust gases, which device comprises, in the flow direction of the exhaust gas, an oxidation catalyst, a diesel particle filter with catalytically active coating, and, downstream of a device f... | 11/15/2011 |
| 7897127 | Collecting particles from a fluid stream via thermophoresis A method of collecting particles from a gas-particle stream having a first temperature and a plurality of particles, the method comprising: cooling an interior surface of a collection chamber to a second temperature less than the first temperature of the gas-particl... | 03/01/2011 |
| 7858061 | Compositions and methods for removing mercury from mercury-containing fluids Oxidative sorbents are provided for adsorbing elemental or oxidized mercury from mercury-containing fluids such as flue gas from a coal-burning power utility or the like at a temperature range of about 50 to 350° C. The method of preparing and using the oxidative s... | 12/28/2010 |
| 7758835 | Method for treating fly ash in a fluidized bed boiler and boiler plant A method for treating fly ash of flue gas exiting a furnace of a fluidized bed boiler. A side flow conveying a first fraction of fly ash is separated from a flow conveying a second fraction of fly ash. After the separation, the side flow conveying the first fraction... | 07/20/2010 |
| 7641876 | Reduced liquid discharge in wet flue gas desulfurization One aspect of the invention relates to a method for removing contaminants from a flue gas stream (22). The method includes: removing fly ash from a flue gas stream (22) utilizing a particle collector (24); contacting the flue gas stream with an ... | 01/05/2010 |
| 7569198 | Wet gas scrubbing process The removal of particulates and acidic gases from the effluent from a fluid catalytic cracking process regenerator. The effluent is treated in two contacting stages with an effective amount of both a caustic solution as well as ammonia and the composition of the con... | 08/04/2009 |
| 7547427 | Multiple stage separator vessel A novel multiple stage separator (MSS) vessel is disclosed wherein the vessel includes at least first and second stages or decks of separation cyclones, the stages arranged for operation in series. Each stage or deck includes an upper and lower tube sheet on which a... | 06/16/2009 |
| 7481987 | Method of removing sulfur trioxide from a flue gas stream A method is provided for reducing the fouling during the removal of sulfur trioxide from a flue gas stream by maintaining the reagent (i. e. sodium sesquicarbonate) in contact with the flue gas for a sufficient time and temperature to react a portion of the reagent ... | 01/27/2009 |
| 7442353 | Heat recirculating cooler for fluid stream pollutant removal A process by which heat is removed from a reactant fluid to reach the operating temperature of a known pollutant removal method and said heat is recirculated to raise the temperature of the product fluid. The process can be utilized whenever an intermediate step rea... | 10/28/2008 |
| 7442352 | Flue gas purification process using a sorbent polymer composite material Process for removing sulfur oxides, mercury vapor, and fine particulate matters from industrial flue gases that contain such pollutants. Pollutants are removed by modules, which contain microporous adsorbent (i.e., sorbent) material held within a polymer matrix. The... | 10/28/2008 |
| 7435400 | Optimizing post-combustion nitrogen oxide and sulfur dioxide reductions and improving combustion efficiency in coal fired boilers A method for increasing the nitrogen oxide emissions by either removing or modifying fuel rich nitrogen oxide (NOx) reduction processes thereby improving combustion efficiencies especially with low volatile low sulfur coals, and remove unburned carbon, re... | 10/14/2008 |
| 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 |
| 7427383 | Hydrogen sulfide removal method and system for treating gaseous process streams A method and system for removing hydrogen sulfide from gaseous process streams, such as sour gas streams are disclosed and described. A gaseous stream containing hydrogen sulfide can be contacted with an aqueous silicon-containing composition under high shear condit... | 09/23/2008 |
| 7384612 | Diesel exhaust gas purifying filter An exhaust cleanup filter which, even if the exhaust temperature is low as during vehicular driving under low load, can trap PM efficiently to prevent clogging by PM buildup and which also is effective in purifying the exhaust from a diesel engine that does not use ... | 06/10/2008 |
| 7357900 | NOreduction system for diesel engines, using hydrogen selective catalytic reduction An emission control system for reducing NOx in the exhaust of a diesel engine. A partial oxidation system receives diesel fuel from the engine's fuel tank and partially oxidizes the diesel fuel into hydrogen. The hydrogen is then introduced into the main ... | 04/15/2008 |
| 7332142 | Method and apparatus for bubble injection of agent into exhaust gas for use with emission abatement device An apparatus comprises an exhaust system and an injection system. The injection system is configured to vaporize a first liquid portion of an agent into at least one bubble so as to inject a second liquid portion of the agent into the exhaust system by use of the at... | 02/19/2008 |
| 7300481 | Method and device for cleaning filters for dust-laden waste gases The invention relates to a method for cleaning filters for dust-laden waste gases, including several filter elements (2) which are arranged vertically in a filter housing (1) and which have an upper open end (16) and a lower closed end (15 | 11/27/2007 |
| 7288233 | Dry adsorption of oxidized mercury in flue gas In a method of removing metals such as mercury from flue gas produced by combustion devices, water or water including a calcium-containing component or water including Cl− anion formers or water including both a calcium-containing component and Clâ... | 10/30/2007 |
| 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 |
| 7273595 | Method and apparatus for the production of gaseous ammonia from a urea solution A safe, economical and predictable process for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i.e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or allev... | 09/25/2007 |
| 7258723 | Particulate filter assembly and associated method A particulate filter assembly includes an electrode assembly, a particulate filter positioned in an electrode gap defined between two electrodes of the electrode assembly, a power supply electrically coupled to the electrode assembly, and a controller for controllin... | 08/21/2007 |
| 7252703 | Direct contact liquid air contaminant control system The direct contact liquid air contaminant control system and method to revitalize air by removal of carbon dioxide and other trace gas contaminants use a direct contact air, liquid scrubber element and stripper element. The scrubber element has two rotor elements ro... | 08/07/2007 |
| 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 |
| 7223375 | Emission control systems and methods thereof A method and system for controlling one or more emissions includes introducing ammonia to react with at least a portion of sulfur trioxides in an exhaust emission and result in at least one or more ammoniated compounds. At least a portion of fly ash particles and th... | 05/29/2007 |
| 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 |
| 7211232 | Refractory exhaust filtering method and apparatus A method for catalytically cleaning an exhaust gas, including receiving the exhaust gas in an inlet channel, blocking the exhaust gas in the inlet channel, diffusing the exhaust gas through a porous substantially fibrous nonwoven wall of the inlet channel, reacting ... | 05/01/2007 |
| 7189375 | Exhaust treatment device An exhaust treatment device for treating an exhaust gas stream combines the functionalities of a catalytic particulate filter and a NOx absorber catalyst into a single integral device and is disposed in an exhaust conduit. By combining the functionalities of the cat... | 03/13/2007 |
| 7189374 | Emissions control A diesel engine (1) has an exhaust system (4) and an oxidation catalyst (5a). Exhaust gas for recirculation is taken through an intake pipe (6) downstream of the catalyst, and preferably upstream of a filter (5b) for ... | 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 |
| 7163668 | Hydrogen selective catalytic reduction for NO An emission control system for reducing NOx in the exhaust of a diesel engine. A partial oxidation system receives diesel fuel from the engine's fuel tank and partially oxidizes the diesel fuel into hydrogen. The hydrogen is then introduced into the main ... | 01/16/2007 |
| 7153488 | Suppression of the formation of noxious substances during chloride processes The present invention is directed to the suppression of the formation noxious compounds such as furans. According to the present invention, a venturi device is used to rapidly quench a chlorinator reaction gas. The rapid quench minimizes the resonance time that fura... | 12/26/2006 |
| 7135153 | NOreduction system for diesel engines, using hydrogen selective catalytic reduction An emission control system for reducing NOx in the exhaust of a diesel engine. A partial oxidation system receives diesel fuel from the engine's fuel tank and partially oxidizes the diesel fuel into hydrogen. The hydrogen is then introduced into the main ... | 11/14/2006 |
| 7119044 | Multiple washcoats on filter substrate An integrated multi-functional catalyst system includes a diesel particulate filter having an inlet side for receiving flow and an opposite outlet side, a substrate in the diesel particulate filter having an interior wall surface and an exterior wall surface, a firs... | 10/10/2006 |
| 7115237 | Exhaust gas purifying method and exhaust gas purifying system To provide an exhaust gas purifying method for purifying the exhaust gas of an internal combustion engine (1) by an exhaust gas purifying system (10) having an oxidation catalyst (3a), which comprises the steps of estimating the quantity ... | 10/03/2006 |
| 7115160 | Filtration media Particles may be used to filter harmful biological material from an fluid stream such as air. The particles can be arranged into a bed to filter the harmful biological material from the fluid. The particles include a biocidal agent which is used to destroy the harmf... | 10/03/2006 |
| 7102276 | Resonator of electrodeless lighting system A resonator of an electrodeless lighting system includes a body part formed in a prescribed shape; a transmission space part formed at one side of the body part and having an antenna of an microwave generator therein; a multi-step type resonating space part formed t... | 09/05/2006 |
| 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 |
| 7067087 | System and process for gas recovery This invention is directed to a three-stage process for recovering and purifying a helium gas, and a system for using the three-stage process. The steps comprise a) introducing a gas from a cold spray forming chamber to a particulate removing apparatus to form a par... | 06/27/2006 |
