Including Means Providing Sequential Purification Stages Patents (Class 422/169)
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Patent number: 8574506Abstract: Disclosed are a method and an apparatus for processing an exhaust gas, which enable to suppress decrease of pH and increase of ORP of a mixture of an aqueous solution of a reducing agent and an aqueous alkali solution circulated within a wet reactor comprising a reduction reaction region and an oxidation reaction region. The method and apparatus enable to prevent deterioration of the mixed aqueous solution, and can be continuously operated for a long time. Specifically, the ORP and pH of the mixed aqueous solution of the aqueous solution of a reducing agent and the aqueous alkali solution to be circulated within the wet reactor are measured, and a fresh aqueous solution of a reducing agent and a fresh aqueous alkali solution are supplied, if necessary, into a reservoir unit arranged in the lower part of the wet reactor so that the ORP and pH of the mixed aqueous solution are kept within predetermined ranges.Type: GrantFiled: February 15, 2008Date of Patent: November 5, 2013Assignees: Osaka Prefecture University Public Corporation, Japan Science and Technology AgenyInventors: Tomoyuki Kuroki, Masaaki Okubo, Toshiaki Yamamoto, Hidekatsu Fujishima, Keiichi Otsuka
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Patent number: 8574335Abstract: A holding sealing material includes inorganic fibers, a mat shape, a first end face and a second end face and a penetration portion. The mat shape has a width direction, a length direction and a thickness direction. The first end face and the second end face are each provided approximately in parallel with the width direction. The penetration portion penetrates the holding sealing material in the thickness direction.Type: GrantFiled: January 17, 2012Date of Patent: November 5, 2013Assignee: Ibiden Co., Ltd.Inventors: Hisashi Ando, Takahiko Okabe
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Publication number: 20130287656Abstract: The invention relates to a system intended to reduce the amount of NOx in the exhaust gases of a motor vehicle. The system comprises a storage space (1) containing a reducing agent; an SCR (selective catalytic reduction) catalytic converter (5) for treating the exhaust gases laden with reducing agent, and an injection module (6c) designed to inject the reducing agent from the storage space (1) into the exhaust gases of the motor vehicle upstream of the SCR catalytic converter (5). The system further comprises: at least one heat exchanger (2) connected to the storage space (1) and containing a porous matrix intended to absorb the reducing agent originating from the storage space (1); a valve or an injector (11) downstream of the storage space (1) and upstream of the exchanger (2) and designed to control the addition of reducing agent to the exchanger (2), and a valve (12) positioned between the storage space (1) and the exchanger (2).Type: ApplicationFiled: October 20, 2011Publication date: October 31, 2013Applicant: AAQIUS & AAQIUS S.A.Inventors: Arnaud Audouin, Jean-Baptiste Dementhon
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Publication number: 20130287660Abstract: Disclosed herein is a layered three-way catalytic system being separated in a front and a rear portion having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. Provided is a catalyst composite comprising a single front catalytic layer and two rear catalytic layers in conjunction with a substrate, where the single font layer and the rear bottom layer comprise a Pd component, the rear top layer comprises a Rh component, and the rear bottom layer is substantially free of an oxygen storage component (OSC).Type: ApplicationFiled: November 21, 2011Publication date: October 31, 2013Applicant: UMICORE AG & CO. KGInventors: John G. Nunan, Raoul Klingmann, Ryan J. Andersen, Davion Onuga Clark, David Henry Moser
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Publication number: 20130287639Abstract: An object of the present invention is to easily reduce dust having large particle diameter that affects blocking and abrasion to prevent deposition thereof in a reactor. An exhaust gas NOx removal apparatus comprises a NOx removal rector having a catalyst layer for removing nitrogen oxides in a combustion exhaust gas; a duct structure having a stab-up point at which a flow of the exhaust gas changes from a horizontal direction to a vertical direction in an exhaust gas duct on the upstream side of the NOx removal reactor; a tilt thin plate slit in which a number of thin plates are disposed in the duct of the horizontal direction of an inlet of the stub-up point or/and in an inlet of the catalyst layer in the NOx removal reactor in a vertical direction with a slit width smaller than an opening width of the catalyst layer at a predetermined inclination angle relative to the cross-section of an exhaust gas flow path; and a dust collecting/discharging portion attached to the lower end of a tilt thin plate slit.Type: ApplicationFiled: November 28, 2011Publication date: October 31, 2013Applicant: BABCOCK-HITACHI KABUSHIKI KAISHAInventors: Kanji Ishikawa, Masaaki Ishioka, Katsuhiro Yashiro
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Publication number: 20130287658Abstract: A NOx trap composition, and its use in an exhaust system for internal combustion engines, is disclosed. NOx trap composition comprises a platinum group metal, barium, cobalt, and a magnesia-alumina support. The NOx trap composition is less prone to storage deactivation and exhibits reduced N2O formation.Type: ApplicationFiled: April 26, 2012Publication date: October 31, 2013Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventor: FIONA-MAIREAD McKENNA
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Publication number: 20130287638Abstract: This exhaust gas purification device for an internal combustion engine is provided with a particulate filter disposed in an engine exhaust system, and a catalytic device disposed downstream of the particulate filter in the engine exhaust system. The catalytic device holds sulfuric acid as a sulfate and releases the product as SO2.Type: ApplicationFiled: February 28, 2011Publication date: October 31, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kou Sugawara, Shigeki Nakayama, Yuichi Sobue, Hiromasa Nishioka, Daichi Imai
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Publication number: 20130287637Abstract: A treatment module for use in an abatement system for process exhaust gases. The treatment module has a centrally located flame wall oxidizer module that cause the process exhaust gases to travel within a cylinder of gas a short distance upon exiting the exhaust conduit before the gases are oxidized. Following oxidation, two coaxial cylinders of water spray flush solid, liquid and water soluble components of the oxidation products from the resulting oxidation products stream into a bottom water reservoir. The first inner water spray cylinder coaxially surrounds the flame wall oxidizer module and flows co-currently with the downward flow of oxidation products. The gaseous oxidation products then turn 180 degrees and pass upward through a second outer water spray cylinder located coaxial to and surrounding the first water spray. Thereafter, the remaining water insoluble gaseous oxidation products exit the treatment module.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Inventor: Earl Vickery
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Patent number: 8568673Abstract: A gas analysis device according to the present invention includes a flue-gas extraction pipe for extracting flue gas from a flue gas duct to which flue gas including both of NH4Cl and SO3 is fed, a collector that is provided in the flue-gas extraction pipe, for removing soot dust contained in the extracted flue gas, a roll filter that is provided in the flue-gas extraction pipe, for depositing both of NH4Cl and SO3 contained in the flue gas, and a measurement device for measuring both of NH4Cl and SO3 contained in the flue gas by irradiating a sample including both of NH4Cl and SO3 deposited by the roll filter with X-rays and detecting fluorescent X-rays generated from the sample.Type: GrantFiled: September 22, 2011Date of Patent: October 29, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Seiji Kagawa, Masaru Chiyomaru, Nobuyuki Ukai, Takuya Okamoto, Moritoshi Murakami
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Publication number: 20130276702Abstract: Gas reclaim and abatement are provided herein. In some embodiments, a gas reclaim and abatement system may include a chamber having walls defining an interior volume, a first body extending into the interior volume and having a channel disposed therein to provide a first gas to the chamber, wherein the first body is spaced apart from the walls to define a reaction volume between the first body and the walls, a plurality of RF coils disposed about the first body to provide RF energy to heat the first body, wherein the plurality of RF coils are disposed proximate the walls of the chamber on a side of the reaction volume opposite the first body, and a ceramic layer disposed about the first body, wherein the ceramic layer has one or more openings to provide a second gas to the reaction volume of the chamber through the ceramic layer.Type: ApplicationFiled: April 23, 2013Publication date: October 24, 2013Inventor: David K. CARLSON
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Publication number: 20130280153Abstract: A selective catalytic reduction system and method for reducing nitrogen oxide (NOx) emissions comprising a boiler producing flue gas emissions, a particulate control device receiving flue gas emissions from the boiler, a selective catalytic reduction unit (SCR) receiving flue gas emissions from the particulate control device and reducing nitrogen oxide (NOx) emissions, and a heat exchanger located downstream of the selective catalytic reduction unit (SCR) for removing heat from the flue gas for preheating at least one of boiler feed water and combustion air for the boiler.Type: ApplicationFiled: June 14, 2013Publication date: October 24, 2013Applicant: 2E ENVIRONMENTAL, LLCInventor: Robert ELLERY
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Patent number: 8557010Abstract: Fused particles containing, by weight percent: more than 15% but less than 55% of Al2O3; more than 20% but less than 45% of TiO2; more than 3% but less than 30% of SiO2; less than 20%, in total, of at least one oxide selected from the group consisting of ZrO2, Ce2O3, and HfO2; less than 1% of MgO; and more than 1% but less than 15%, in total, of at least one selected from the group consisting of CaO, Na2O, K2O, SrO, B2O3, and BaO. Also, a ceramic product or material obtained by sintering the fused particles.Type: GrantFiled: June 25, 2010Date of Patent: October 15, 2013Assignee: Saint-Gobain Centre de Recherches et d'Etudes EuropeenInventor: Stephane Raffy
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Patent number: 8557011Abstract: The invention relates to a honeycomb structure including a set of adjacent channels, each channel being in communication with upstream and downstream surfaces, respectively, via upstream and downstream openings, such that said set of channels forms cross-sectional upstream and downstream patterns on said upstream and downstream surfaces, respectively. According to the invention, at least one of the upstream and downstream surfaces has an error-proofing mark extending over fewer than 50 channels and making it impossible to completely stack any one of the upstream and downstream patterns onto the other, the outer perimeter of the upstream and/or downstream pattern being symmetrical or having an asymmetry that extends over fewer than 10 channels. The invention can be used in the filtration of particles contained it the exhaust gases of internal combustion engines, in particular diesel engines.Type: GrantFiled: July 9, 2010Date of Patent: October 15, 2013Assignee: General Electric CompanyInventor: Bernard Bouteiller
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Patent number: 8557012Abstract: Fused particles having the following chemical composition, as a percentage by weight on the basis of the oxides: more than 15% but less than 55% of Al2O3; more than 25% but less than 60% of TiO2; less than 20%, in total, of at least one oxide of an element M1, chosen from MgO and CoO; more than 0.7% but less than 20%, in total, of at least one oxide of an element M2, chosen from the group formed by Fe2O3, Cr2O3, MnO2, La2O3, Y2O3 and Ga2O3; less than 20%, in total, of at least one oxide of an element M3, chosen from the group formed by ZrO2, Ce2O3 and HfO2; and less than 30% of SiO2. Ceramic product or material obtained by sintering said particles.Type: GrantFiled: July 27, 2010Date of Patent: October 15, 2013Assignee: Saint-Gobain Centre de Recherches Et d'Etudes EuropeenInventor: Stephane Raffy
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Patent number: 8557009Abstract: A method of manufacturing a ceramic diesel particle filter (DPF) and a DPF manufactured by the method, the DPF having a ceramic filter body (1) including gas channels (18, 18?) with planar and porous filter segments (3), which are provided for the exhaust gas stream (2) to flow through them transversely to the face of the filter segments (3). The filter body (1) is formed by sintering at least one ceramic-impregnated fiber web (4) in a firing step under heat such that fibers (5) of the fiber material are burned off and the ceramic material (6) is sintered together to form the porous filter segment (3) between its two surfaces (7, 8). At least one fiber web (4) is corrugated to form the gas channels (18, 18?) and rolled up to form the filter body (1), and the cross section of at least a portion of the gas channels (18, 18?) changes from an inlet end (33) to a discharge end (34).Type: GrantFiled: February 24, 2011Date of Patent: October 15, 2013Assignee: Mann+Hummel GmbHInventors: Karin Gerlach, Stefan Tudyka, Jochen Linhart, Andreas Franz
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Publication number: 20130259788Abstract: An apparatus and method to clean flue gases. As shown in FIG. 1, a condenser 10 is provided having two packed beds (20/26) and two condensate loops. The condensate loops are configured such that anti-corrosive agent (40/41) may injected. Corrosives are removed from flue gases as condensate containing anti-corrosive agents passes over the flue gases.Type: ApplicationFiled: April 2, 2012Publication date: October 3, 2013Applicant: Alstom Power, Inc.Inventors: Wuyin Wang, Stefan Ahman
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Publication number: 20130259759Abstract: A configuration includes two exhaust gas treatment devices disposed in succession in an exhaust gas line. A first exhaust gas treatment device has a first subregion connected through at least one support body to a second subregion of a second exhaust gas treatment device. The support body has opposite ends connected by connections points to respective subregions. At least the second subregion is formed by metallic components that contact one another to form contact surfaces and at most 20% of the area of the contact surfaces have brazed or solder connections and/or diffusion connections.Type: ApplicationFiled: May 28, 2013Publication date: October 3, 2013Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBHInventors: ROLF BRUECK, KAIT ALTHOEFER
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Publication number: 20130259787Abstract: A system for reducing NOx in a flue gas stream, including an absorption element, a first inlet in fluid communication with the chamber configured to deliver a pressurized flue gas to the chamber, and a second inlet in fluid communication with the chamber configured to deliver an absorbing additive to the chamber. An outlet is in fluid communication with the chamber to exhaust from the chamber flue gas that has contacted the absorbing additive. A method for reducing NOx in a flue gas including the steps of: providing a flue gas in a chamber of an absorption element, providing an absorbing additive so that it contacts at least a portion of the flue gas, and exhausting at least a portion of the flue gas from the chamber.Type: ApplicationFiled: March 13, 2013Publication date: October 3, 2013Applicant: ALSTOM TECHNOLOGY LTD.Inventors: Erik W. Boos, Lars Nilsson
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Patent number: 8545793Abstract: A device for condensing, separating, and storing sulfur in a Claus plant. having a Claus furnace, waste heat boiler, and Claus reactor. Plant parts are supported on a floor or comparable device, and an immersion chamber is provided below the Claus plant and optionally also below a device arranged upstream for gas scrubbing. The immersion chamber receives the sulfur in a siphoning manner, wherein the excess sulfur flows at least 4.00 meters deeper from the immersion chamber into a ground-level container in which the immersion chamber is arranged. The invention further relates to a method, by means of which liquid sulfur is conducted into an immersion chamber, wherein the immersion chamber is arranged at a height level below the waste heat boiler and the Claus reactor so that the liquid sulfur reaches the immersion chamber without further pumping and overcomes a height difference of at least 4.00 meters.Type: GrantFiled: March 3, 2011Date of Patent: October 1, 2013Assignee: Thyssenkrupp UHDE GmbHInventor: Holger Thielert
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Patent number: 8545782Abstract: A CO2 recovery apparatus includes a desulfurization tower which includes a desulfurization unit and a cooling unit, an absorption tower which includes a CO2 absorption unit and an acid washing unit, a regeneration tower, and an acid water production device configured to produce acid water by causing exhaust gas yet to be introduced into the desulfurization to come into contact with water. In the CO2 recovery apparatus, the water to be come in contact with the exhaust gas is condensed water that is generated in the desulfurization tower, the absorption tower, or the regeneration tower.Type: GrantFiled: October 16, 2012Date of Patent: October 1, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tatsuya Tsujiuchi, Shintaro Honjo, Takahito Yonekawa, Satoru Sugita
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Publication number: 20130251599Abstract: A combustion exhaust gas processing device comprises: a dust collector collecting dust in a cement kiln combustion exhaust gas; a wet dust collector as a catalyst-poisoning-substance stripper removing a catalyst-poisoning substance from a combustion exhaust gas which passed the dust collector, preheaters heating beforehand a combustion exhaust gas which passed the wet dust collector; and a catalyst device from which NOx, a persistent organic pollutant, etc. in the preheated combustion exhaust gas, are removed. A titanium-vanadium catalyst etc. as an oxide catalyst is used upstream of the catalyst device, and a platinum catalyst etc. as a noble-metal catalyst downstream of the catalyst device. The temperature of the combustion exhaust gas after the catalyst-poisoning substance is removed is increased up to 140° C. or more with the preheaters to prevent decline in denitration efficiency of and the decomposition efficiency of a volatile organic compound.Type: ApplicationFiled: May 15, 2013Publication date: September 26, 2013Applicants: Nippon Shokubai Co., Ltd., Taiheiyo Cement CorporationInventors: Shinichiro Saito, Yasuhiro Uchiyama, Junichi Terasaki, Hisashi Kondo, Mitsuharu Hagi, Shinyuki Masaki
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Patent number: 8540793Abstract: An exhaust processing device includes a main body tube portion and a closing tube portion. The main body tube portion includes an opening in an axial end thereof, houses a main body exhaust path in an inside thereof, which allows an exhaust gas to pass therethrough. The closing tube portion includes a plate portion and a tubular portion. The plate portion covers the opening of the axial end of the main body tube portion. The tubular portion radially outwardly protrudes from an outer peripheral surface of the main body tube portion, and is integrated with the plate portion. The tubular portion houses an exhaust path in an inside thereof, which communicates with the main body exhaust path. The tubular portion of the closing tube portion includes a first split half portion integrally molded with the plate portion, and a second split half portion joined to the first split half portion.Type: GrantFiled: May 8, 2009Date of Patent: September 24, 2013Assignee: Komatsu Ltd.Inventors: Yuuki Kasaoka, Tatsushi Itou, Shouhei Nagasaka, Hirofumi Takanuki
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Patent number: 8535405Abstract: The honeycomb structure is provided with a honeycomb structural section, a pair of lateral electrodes on the side face of the honeycomb structural section, and at least one intermediate layer between the honeycomb structural section and the lateral electrodes. The honeycomb structural section has silicon carbide particles having an average particle diameter of 3 to 40 ?m and silicon, and the ratio (Si/SiC) of silicon (Si) to silicon carbide (SiC) is 10/90 to 40/60. The lateral electrodes have an average particle diameter of the silicon carbide particles of 10 to 70 ?m and a Si/SiC ratio of 20/80 to 50/50. The intermediate layer has an average particle diameter of silicon carbide particles and Si/SiC between those of the honeycomb structural section and those of the lateral electrodes. The electric resistance between the lateral electrodes of the honeycomb structural section is 2 to 100?.Type: GrantFiled: August 22, 2012Date of Patent: September 17, 2013Assignee: NGK Insulators, Ltd.Inventors: Yasushi Noguchi, Atsushi Kaneda, Takayuki Inoue
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Patent number: 8535626Abstract: An exhaust gas treatment apparatus according to the present invention generates post-mercury oxidation exhaust gas by denitrating exhaust gas of a combustion apparatus, generates desulfurization drainage by desulfurizing the post-mercury oxidation exhaust gas, supplies the desulfurization drainage to the combustion apparatus, and controls a return amount, which is the amount of the desulfurization drainage reused for the desulfurization, based on a concentration of halogens in the desulfurization drainage. Such exhaust gas treatment apparatus can appropriately remove mercury from the exhaust gas, and can desulfurize the post-mercury oxidation exhaust gas more appropriately.Type: GrantFiled: November 28, 2012Date of Patent: September 17, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shintaro Honjo, Satoru Sugita
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Patent number: 8529652Abstract: A soot particle filter according to the invention can be particularly used in motor vehicles or heating systems using liquid and solid fuels. The device is particularly characterized by a time controlled variable regeneration of the soot particle storage (10) and soot particle burn-off. The device is in particular catalytic. The device comprises at least one filter housing (2) having an input (3), an output (4) and a filter element (6). A soot particle storage chamber (10) is further provided in the filter housing (2) and comprises an access (19) that is particularly angled and tapered toward the inside. The inner chamber of the soot particle storage (10) is lined with precious metal discs (11). Said discs have holes, are angled and/or corrugated. The precious metal discs and/or a precious metal mesh (11) are at least partially catalytically coated. An ignition device (12) is arranged in the filter housing (12), for example a glow plug and/or a glow filament.Type: GrantFiled: November 19, 2008Date of Patent: September 10, 2013Inventor: Roswitha Burkhardt
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Patent number: 8529855Abstract: A method for removing gas components SOx, NOx, and CO2 from a flue gas, comprises the steps of contacting the flue gas successively with first, second and third liquid mediums each of which provides a plasma containing reactive electrons or ions in an amount such that the gas molecules SOx, NOx, and CO2 are successively subjected to impingement of the electrons or ions in the respective plasma to enable the dissociation of the gas molecules SOx, NOx, and CO2 so as to remove SOx, NOx, and CO2 from the flue gas. A system for removing gas components SOx, NOx, and CO2 from a flue gas is also disclosed.Type: GrantFiled: May 26, 2010Date of Patent: September 10, 2013Assignee: Ecospec Global Technology Pte Ltd.Inventor: Hwee Hong Chew
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Publication number: 20130216440Abstract: A device for treating exhaust gas containing soot particles includes at least one ionization element for ionizing soot particles, at least one filter element having at least one section to which an electrical potential can be applied, and at least one flow-directing device. The flow-directing device can influence a flow of the exhaust gases in such a way that the soot particles can be prevented from being deposited on at least one electric insulation of the ionization element or of the filter element or can be removed therefrom. Soot particles are therefore effectively prevented from being deposited on electric insulation of exhaust gas cleaning components, thereby preventing short-circuits from being produced and permitting exhaust gas systems to be safely operated.Type: ApplicationFiled: September 13, 2011Publication date: August 22, 2013Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBHInventors: Rolf Brueck, Jan Hodgson, Christian Vorsmann
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Patent number: 8512433Abstract: Disclosed are ceramic honeycomb articles which possess a unique microstructure characterized by porosity between 40% and 70%, and the presence of coarse pores exhibiting a depth equivalent to the thickness of the cell wall and a dimensional width, in the plane of the cell wall, exhibiting a diameter that is at least as large as the thickness of the cell wall. The articles exhibits reduced filtration efficiency coupled with low pressure drop across the filter, and a reduced regeneration need. Such ceramic articles are particularly well suited for filtration applications, such as off-road and retro-fit diesel exhaust filters or DPFs. Also disclosed is a method for manufacturing the ceramic article wherein the pore former is capable of forming coarse pores.Type: GrantFiled: May 29, 2009Date of Patent: August 20, 2013Assignee: Corning IncorporatedInventors: Douglas Munroe Beall, Achim Karl-Erich Heibel, Pushkar Tandon, David John Thompson
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Publication number: 20130209319Abstract: An exhaust post-treatment device is designed in a layered fashion and comprises an exhaust cleaning arrangement lying between a supply chamber and a transition chamber with soot filters lying at both sides of a denitrification-catalytic converter unit, with the transition chamber comprising a mixing chamber open towards the denitrification-catalytic converter unit, in which starting at the soot filters via separate guide channels, the exhaust is injected in the opposite direction of flow and which mixing chamber is limited by guide panels, which form walls of the guide channels extending encompassing along the housing towards the mixing chamber.Type: ApplicationFiled: May 9, 2011Publication date: August 15, 2013Inventors: Guido Schäffner, Hans Sudmanns, Claudia Riedel
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Patent number: 8506917Abstract: In a circulating fluidized-bed gasification system, an ammonia-off gas 30 from an ammonia remover 25 is fed to a catalytic denitrator 15 with a flow rate regulated such that a molar ratio of the ammonia in the ammonia off-gas 30 from the ammonia recover 25 to nitrogen oxides in an exhaust gas 6 from a combustion furnace 1 is kept within a setting range, and a reminder of the ammonia off-gas 30 is fed to the combustion furnace 1.Type: GrantFiled: October 14, 2010Date of Patent: August 13, 2013Assignee: IHI CorporationInventors: Hiroaki Ohara, Koki Hamada
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Publication number: 20130202509Abstract: The present invention relates to a catalytically active material consisting of an inner core (1) and an outer shell (2) surrounding this core, the core being formed from palladium and gold fixed together on a first support oxide, and the shell comprising platinum fixed on a second support oxide, to a diesel oxidation catalyst comprising this catalytically active material, and to an exhaust gas cleaning system comprising this diesel oxidation catalyst.Type: ApplicationFiled: October 19, 2011Publication date: August 8, 2013Applicant: UMICORE AG & CO. KGInventors: Frank-Walter Schuetze, Anke Woerz, Gerald Jeske
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Publication number: 20130202517Abstract: A method for forming carbon dioxide from a gas stream, comprising chemically reacting carbon dioxide in a gas stream with a liquid phase-changing sorbent to form a solid reaction product, wherein the solid reaction product is in the form of a dry solid, a wet solid, a slurry or a fine suspension, storing the solid reaction product and heating the solid reaction product to form carbon dioxide gas and the liquid phase-changing sorbent.Type: ApplicationFiled: February 6, 2012Publication date: August 8, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Raul Eduardo Ayala, Robert James Perry
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Patent number: 8500881Abstract: The present invention discloses a carbon dioxide capture power generation system provided with a boiler to combust a fuel in the oxygen atmosphere, a carbon dioxide capture equipment to remove carbon dioxide in the wake flow of the boiler, a piping branching from the wake flow of the boiler to recycle the combustion exhaust gas to the boiler, and a desulfurization equipment to remove sulfur oxides and a sulfuric acid removal equipment to remove a sulfuric acid gas in the upstream of carbon dioxide capture equipment and in the wake flow of the boiler.Type: GrantFiled: August 19, 2010Date of Patent: August 6, 2013Assignee: Hitachi, Ltd.Inventors: Hisayuki Orita, Masaaki Mukaide, Nobuyuki Hokari, Tsuyoshi Shibata, Masayuki Taniguchi
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Patent number: 8500840Abstract: A cordierite-based ceramic honeycomb filter comprising a honeycomb structure having a large number of flow paths partitioned by porous cell walls, and plugs alternately formed in said flow paths on the exhaust-gas-inlet side or the exhaust-gas-outlet side for permitting an exhaust gas to pass through said porous cell walls to remove particulate matter from the exhaust gas, said porous cell walls having porosity of 45-58%, an average pore size of 15-30 ?m, the volume of pores having pore sizes exceeding 50 ?m being more than 10% and 25% or less of the total pore volume, the volume of pores having pore sizes of 100 ?m or more being 1-8% of the total pore volume, the volume of pores having pore sizes of less than 10 ?m being 3-10% of the total pore volume, and said pores having a pore size distribution deviation ? [=log(D20)?log(D80)] of 0.Type: GrantFiled: October 14, 2008Date of Patent: August 6, 2013Assignee: Hitachi Metals, Ltd.Inventors: Shunji Okazaki, Toshitaka Ishizawa
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Patent number: 8501135Abstract: A method of reducing sulfur compounds from an incoming gas stream, comprising flowing the gas stream over a hydrolysis catalyst to convert COS and CS2 to H2S and reduce SO2 to elemental sulfur to form an effluent stream; providing an acidic gas removal unit comprising an absorbent; flowing said effluent stream over said absorbent to produce a stream free of acidic gases; applying an acidic-gas desorption mode to said acidic-gas rich absorbent to produce an acidic gas stream; introducing oxygen to said acidic gas-rich stream; providing a direct oxidation vessel containing catalyst suitable for catalyzing the oxidation of the H2S to sulfur wherein the temperature of the vessel is at or above the sulfur dew point at the reaction pressure; and flowing said acidic gas-rich stream over said catalyst to produce a processed stream having a reduced level of sulfur compounds.Type: GrantFiled: July 10, 2012Date of Patent: August 6, 2013Assignee: Archon Technologies Ltd.Inventors: Alan Ayasse, Ahmed M. Shahin, Conrad Ayasse
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Patent number: 8501131Abstract: An apparatus to introduce a reagent to reduce nitrogen oxides in flue gas including: nozzles mounted to a passage for the flue gas, wherein the nozzles are mounted downstream of a SNCR system and upstream of a SCR system, wherein the nozzles are mounted on one or more walls of the passage and are configured to inject a pressurized fluid into the flue gas; a source of the pressurized fluid which is in fluid communication with the nozzles such that the pressurized fluid flows to the nozzles; a source of a NOx reducing reagent and a mixing device which mixes the reagent with the pressurized fluid such that the pressurized fluid flowing to the nozzles includes the reagent.Type: GrantFiled: December 15, 2011Date of Patent: August 6, 2013Assignee: General Electric CompanyInventors: David Kelly Moyeda, Wei Zhou, Antonio Marquez, Xu Guang, Santosh Nareddy
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Patent number: 8501134Abstract: The invention relates to a process and catalyst for the oxidative desulfurization of hydrocarbonaceous oil. In one aspect, solid carbon materials are provided having stable sulfur trioxide and nitrogen dioxide oxidative species on the surface thereof. Such materials are useful in the production of low sulfur hydrocarbon feedstocks and in the removal of refractory sulfur compounds.Type: GrantFiled: November 28, 2011Date of Patent: August 6, 2013Assignee: Saudi Arabian Oil CompanyInventor: Ki-Hyouk Choi
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Patent number: 8501130Abstract: A method for recovering CO2 from gas to be processed containing CO2, includes bringing the gas to be processed containing CO2 and CO2 absorbent into contact with each other to absorb and remove CO2 from the gas to be processed; cleaning the treated gas from which CO2 has been removed with washing fluid at least once; heating the absorbent which has absorbed CO2, separating and removing CO2 gas from the absorbent and regenerating the absorbent; cooling the separated CO2 gas to condense moisture contained in the gas to obtain condensed water; and monitoring changes in concentration of the CO2 absorbent contained in the condensed water and depending on the value of the measured concentration, controlling supply of the condensed water so that the condensed water is reused as a part of the washing fluid or a part of the CO2 absorbent.Type: GrantFiled: September 24, 2012Date of Patent: August 6, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tatsuya Tsujiuchi, Shintaro Honjo, Takahito Yonekawa, Satoru Sugita
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Patent number: 8496724Abstract: A plugged honeycomb structure including particulate matter (PM) trapping layers disposed on the surfaces of the partition walls extending up to inflow side end faces of the plugging portions that plug outflow cells so that adjacent PM-trapping layers with the partition walls and the plugging portion therebetween are disposed so as to continue on the inflow side end faces of the plugging portions. The PM-trapping layers are extended up to the inflow side end faces of the plugging portions to form protruding portions having a protrusion height corresponding with 0.1 to 2 times the length of a side of the outflow cells from the inflow side end faces of the plugging portions toward the outside of the cell extension direction.Type: GrantFiled: March 24, 2011Date of Patent: July 30, 2013Assignee: NGK Insulators, Ltd.Inventors: Shingo Tokuda, Yoshimasa Kondo
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Patent number: 8495867Abstract: An exhaust gas treatment system includes a heating module for heating exhaust gas upstream of a main catalytic converter. The heating module includes a first heating core having a first core volumetric size and a second heating core having a second core volumetric size that is less than the first core volumetric size. The first heating core with the larger first core volumetric size is configured to optimize pre-crank heating, while the second heating core with the smaller second core volumetric size is configured to optimize post-crank heating. The first heating core and the second heating core may be arranged in series with each other or in parallel with each other.Type: GrantFiled: October 29, 2010Date of Patent: July 30, 2013Assignee: GM Global Technology Operations LLCInventors: Karthik Ramanathan, Se H. Oh
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Patent number: 8496895Abstract: Disclosed are an exhaust gas treating apparatus and a treating method for a carbon dioxide capture process, in which harmful substances remaining in the exhaust gas discharged from the conventional flue-gas desulfurization process are additionally removed for efficient performance of the carbon dioxide capture process. According to the exhaust gas treating apparatus for a carbon dioxide capture process, it has the effects of minimizing the installation space of desulfurization equipment and reducing the process cost. In addition, by keeping the contaminants contained in the gas introduced in the carbon dioxide capture equipment below a proper level, absorption performance can be improved as degradation of the absorbent used in the carbon dioxide capture process is prevented. After all, it has an advantage of preventing the pollution by the exhaust gas discharged into the atmosphere.Type: GrantFiled: January 27, 2012Date of Patent: July 30, 2013Assignee: Korea Institute of Energy ResearchInventors: Hyung-Keun Lee, Won-Kil Choi, Hang-Dae Jo, Chang-Keun Yi, Sung-Ho Jo, Young-Cheol Park
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Publication number: 20130189163Abstract: A method for removal of CO2 from a flue gas stream, comprising the steps of: a) contacting a flue gas stream comprising CO2 with a first absorption liquid comprising NH3 such that the flue gas stream is depleted in CO2; b) contacting the flue gas stream depleted in CO2 of step a) with a second absorption liquid such that NH3 from the flue gas stream is absorbed in said second absorption liquid to form a flue gas stream depleted in CO2 and NH3; c) separating NH3 from the second absorption liquid such that a gas stream comprising NH3 is obtained; d) contacting said gas stream comprising NH3 separated in step c) with a third absorption liquid such that NH3 is absorbed in said third absorption liquid. A system for removal of CO2 from a flue gas stream, the system comprising: a CO2 absorption stage; an NH3 absorption stage; and a reabsorption stage.Type: ApplicationFiled: February 25, 2013Publication date: July 25, 2013Applicant: ALSTOM TECHNOLOGY LTDInventor: Alstom Technology Ltd
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Patent number: 8491844Abstract: The invention relates to a method for removing nitrogen monoxide (NO) and nitrogen oxides (NOx with x>1) from a gas stream, implementing a device including a catalytic bed for converting a portion at least a part of the NO into NOx with x>1, and a unit for reducing the NOx with x>1, and in which the gas stream is placed into contact with the catalytic bed before entering the unit for reducing the NOx with x>1.Type: GrantFiled: May 18, 2010Date of Patent: July 23, 2013Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Alain Briglia, Ludovic Granados, Christian Monereau, Elise Renou
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Patent number: 8486173Abstract: A collapsible underhood container for mounting under a vehicle hood with a portion of the collapsible underhood container extending into an area between the hood and an underhood safety plane when in an extended position, the container comprising: a lower housing, an upper container portion and a locking feature. The lower housing is fixed relative to the vehicle and has a bottom and side walls. The upper container portion has walls adjacent to and telescopically slidable on the side walls of the lower housing and a top, with the top located in the area between the hood and the safety plane. The locking feature maintains the upper container relative to the lower housing when in the extended position and releases the upper container portion to slide downward relative to the lower housing to a collapsed position when the hood contacts the upper container.Type: GrantFiled: June 10, 2010Date of Patent: July 16, 2013Assignee: GM Global Technology Operations LLCInventors: Philip J. Fikany, Michael A. Vieau, II
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Publication number: 20130177489Abstract: A CO2 removal system includes an absorber for removing CO2 from flue gas. The CO2 removal system includes a regenerator in communication with the absorber. The regenerator separates CO2 from the ionic solution and supplies regenerated ionic solution to the absorber. The CO2 removal system includes a carbon dioxide water wash system in communication with the regenerator. The carbon dioxide water wash system receives a mixture of carbon dioxide and ammonia from the regenerator and separates the ammonia from the CO2. The CO2 removal system includes an ammonia water wash system in communication with the absorber and the carbon dioxide water wash system. The ammonia water wash system removes ammonia from the flue gas. The CO2 removal system includes a membrane separator in communication with the ammonia water wash system, the regenerator and/or the carbon dioxide water wash system.Type: ApplicationFiled: December 12, 2012Publication date: July 11, 2013Applicant: ALSTOM Technology LtdInventor: ALSTOM Technology Ltd
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Cement containing multi-modal fibers for making thermal shock resistant ceramic honeycomb structures
Patent number: 8480781Abstract: A ceramic honeycomb structure comprised of at least two separate smaller ceramic honeycombs that have been adhered together by a cement comprised of inorganic fibers and a binding phase wherein the smaller honey-combs and fibers are bonded together by the binding phase which is comprised of an silicate, aluminate or alumino-silicate. The fibers have a multi-modal size distribution in which some fibers have lengths of up to 1000 micons and other fibers have lengths in excess of 1 mm. The cement composition may be made in the absence of other inorganic and organic additives while achieving a shear thinning cement, for example, by mixing oppositely charged inorganic binders in water together so as to make a useful cement composition for applying to the smaller honeycombs to be cemented.Type: GrantFiled: June 24, 2010Date of Patent: July 9, 2013Assignee: Dow Global Technologies LLCInventors: Jun Cai, Aleksander J. Pyzik, Michael T. Malanga, Kwanho Yang -
Patent number: 8479500Abstract: An exhaust system for an engine comprises a selective catalytic reduction (“SCR”) device having a NOx reducing selective catalytic reduction composition disposed thereon. A particulate filter is disposed in the rigid shell or canister downstream of the selective catalytic reduction device. An ammonia dosing system comprising a controller in signal communication with NOx sensors located upstream and downstream of the selective catalytic reduction device for injection of ammonia into the exhaust gas upstream of the SCR device based on information collected from the NOx sensors to thereby optimize the reduction of NOx in the exhaust gas. An ammonia-neutral oxidation catalyst compound is disposed on the wall-flow substrate of the particulate filter device and is configured to pass through ammonia constituents of the exhaust gas exiting the selective catalytic reduction device with little or no conversion of the ammonia constituents to N2, N2O and NOx.Type: GrantFiled: April 8, 2011Date of Patent: July 9, 2013Assignee: GM Global Technology Operations LLCInventors: Shouxian Ren, Rahul Mital, Jason Daniel Mullins
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Patent number: 8480780Abstract: A honeycomb filter includes a ceramic laminated body including columnar porous ceramic members and an adhesive layer combining the columnar porous ceramic members with one another. The columnar porous ceramic members each have a partition wall and through holes, the through holes extend in parallel with one another in a length direction of the columnar porous ceramic members, the partition wall separates the through holes and filters particulates in an exhaust gas, and the adhesive layer includes an inorganic binder, an inorganic fiber, inorganic particles and an inorganic balloon.Type: GrantFiled: January 27, 2012Date of Patent: July 9, 2013Assignee: Ibiden Co., Ltd.Inventors: Atsushi Kudo, Masafumi Kunieda
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Patent number: 8480983Abstract: A wet flue gas desulfurization (WFGD) system includes an absorber vessel operable to remove pollutants from flue gas supplied thereto. The absorber vessel defines a slurry section for containing a reagent slurry therein and an outlet in fluid communication with the slurry section. The WFGD system includes a mercury removal vessel in fluid communication with outlet. The mercury removal vessel has activated carbon disposed therein.Type: GrantFiled: March 15, 2012Date of Patent: July 9, 2013Assignee: Alstom Technology LtdInventors: Dennis James Laslo, Raymond Raulfs Gansley
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Publication number: 20130171035Abstract: An exhaust treatment device includes an insulation material positioned between an inner shell and an outer shell. An inlet tube has an end in communication with a cavity defined by the inner shell. A substrate for treating engine exhaust is positioned within the inner shell. A cast metal mounting ring is positioned between the inner and outer shells and includes a mounting provision for receipt of a fastener.Type: ApplicationFiled: January 2, 2013Publication date: July 4, 2013Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INC.Inventor: Tenneco Automotive Operating Company Inc.