Utilizing Solid Sorbent, Catalyst, Or Reactant Patents (Class 423/247)
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Patent number: 8101146Abstract: A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a second component comprising a second substrate containing an ammonia oxidation catalyst, wherein said ammonia oxidation catalyst comprises a small pore molecular sieve supporting at least one transition metal; and (b) an oxygen-containing gas input disposed between the components. For example, a CHA Framework Type small pore molecular sieve may be used. A method for reducing NH3 emission includes introducing an oxygen-containing gas into a gas stream to produce an oxygenated gas stream; and exposing the oxygenated gas stream to an NH3 oxidation catalyst to selectively oxidize at least a portion of the NH3 to N2.Type: GrantFiled: April 8, 2011Date of Patent: January 24, 2012Assignee: Johnson Matthey Public Limited CompanyInventors: Joseph M. Fedeyko, Hai-Ying Chen, Arthur J. Reining
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Publication number: 20120009109Abstract: Carbon monoxide (CO) may be removed from flue gas generated by oxyfuel combustion of a hydrocarbon or carbonaceous fuel, by contacting the flue gas, or a CO-containing gas derived therefrom, at a first elevated temperature, e.g. at least 80° C., and at a first elevated pressure, e.g. at least 2 bar (0.2 MPa), with at least one catalyst bed comprising a CO-oxidation catalyst in the presence of oxygen (O2) to convert CO to carbon dioxide and produce carbon dioxide-enriched gas. The carbon dioxide produced from the CO may be recovered from the carbon dioxide-enriched gas using conventional carbon dioxide recovery techniques. NO in the flue gas may also be oxidized to nitrogen dioxide (NO2) and removed using conventional NO2 removal techniques, or may be reduced in the presence of a reducing gas to nitrogen (N2) which does not have to be removed from the gas.Type: ApplicationFiled: July 8, 2010Publication date: January 12, 2012Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Andrew David Wright, Vincent White, Timothy Christopher Golden
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Publication number: 20110311635Abstract: A nanoparticle including a Group 3 atom-containing shell. In various embodiments, the nanoparticle includes a metal or metal catalyst-containing core, or a substantially metal-free core. In other embodiments, the nanoparticle shell is hollow. A method of preparing the nanoparticle and methods of using such particles are also provided.Type: ApplicationFiled: February 12, 2010Publication date: December 22, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Galen D. Stucky, Nicholas C. Strandwitz
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Patent number: 8080224Abstract: Use of a catalyst composition comprising a metal selected from the group consisting of ruthenium, rhodium, nickel and combinations thereof, on a support selected from the group consisting of a beta-zeolite, mordenite and faujasites, is taught for carbon oxide methanation reactions for fuel cells. Specifically, when a mixture of gases containing hydrogen, carbon dioxide, carbon monoxide, and water is passed over the catalyst in a reaction zone having a temperature below the temperature at which the shift reaction occurs and above the temperature at which the selective methanation of carbon monoxide occurs, the catalyst efficiently facilitates the selective hydrogenation of carbon monoxide using H2 that is present in the reformate and reduces the concentration of the CO to levels equal to or less than about 50 ppm and demonstrates a carbon monoxide (CO) methanation selectivity of greater than about 50%.Type: GrantFiled: May 5, 2006Date of Patent: December 20, 2011Assignee: Sud-Chemie Inc.Inventors: Hiroshi Takeda, Troy L. Walsh, Jon P. Wagner
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Patent number: 8071062Abstract: A method for oxidizing an amount of CO in a CO-containing gas stream, e.g., a combustion stream from fuel combustion, is provided. The method comprises exposing the CO-containing gas stream to a catalytic coating at reaction conditions, including at least 8 vol. % O2 and a temperature of at least 600° C. At these reaction conditions, the method comprises generating gaseous intermediate oxidizing species at the catalytic coating for oxidation of the carbon monoxide within the CO-containing gas stream as a homogeneous reaction to improve CO removal efficiency.Type: GrantFiled: December 17, 2009Date of Patent: December 6, 2011Assignee: Siemens Energy, Inc.Inventors: Anatoly Sobolevskiy, Joseph A. Rossin, Michael J. Knapke
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Patent number: 8066963Abstract: The exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture contains, as well as the gaseous hydrocarbon (HC), carbon monoxide (CO) and nitrogen oxide (NOx) pollutants, also ultrafine particulates. There is disclosed a catalytically active particulate filter, an exhaust gas cleaning system and a process for cleaning the exhaust gases of predominantly stoichiometrically operated internal combustion engines, as well as the gaseous CO, HC and NOx pollutants, also for removing particulates from the exhaust gas. The particulate filter comprises a filter body and a catalytically active coating consisting of two layers. Both layers contain alumina. The first layer contains palladium. The second layer contains rhodium. The latter is disposed above the first layer.Type: GrantFiled: September 26, 2008Date of Patent: November 29, 2011Assignee: Umicore AG & Co. KGInventors: Raoul Klingmann, Martin Roesch, Dieter Lindner
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Publication number: 20110280782Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper and zirconium oxides but no zinc oxide, which comprises from 70 to 99.8% by weight of copper oxide and from 0.2 to 30% by weight of zirconium oxide, based on the total amount of the adsorption composition.Type: ApplicationFiled: July 26, 2011Publication date: November 17, 2011Applicant: BASF SEInventors: Stephan Hatscher, Michael Hesse
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Publication number: 20110280781Abstract: Heterogeneous catalyst systems, methods of making these systems, and methods of using these systems, wherein catalytically active gold is deposited onto composite support media. The composite support media is formed by providing nanoporous material on at least a portion of the surfaces of carbonaceous host material. In representative embodiments, relatively fine, nanoporous guest particles are coated or otherwise provided on surfaces of relatively coarser activated carbon particles. Catalytically active gold may be deposited onto one or both of the guest or host materials either before or after the guest and host materials are combined to from the composite host material. PVD is the preferred catalyst system of depositing gold.Type: ApplicationFiled: June 23, 2011Publication date: November 17, 2011Inventors: John T. Brady, Marvin E. Jones, Larry A. Brey, Gina M. Buccellato, Craig S. Chamberlain, John S. Huberly, Allen R. Siedle, Thomas E. Wood, Badri Veeraraghavan, Duane D. Fansler
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Publication number: 20110280780Abstract: Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support.Type: ApplicationFiled: June 23, 2011Publication date: November 17, 2011Inventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
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Patent number: 8057767Abstract: Chemical species such as nitrogen oxide (NO), carbon monoxide, and low molecular weight hydrocarbons (e.g., C1-C5 and saturated or ethylenically unsaturated) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean burn engine, may be oxidized using a mixture of MnOx with one or more other base metal oxides, with or without palladium. The oxidation is effective at temperatures above about 200° C. to convert about ninety percent or more of the carbon monoxide to carbon dioxide and to consume the hydrocarbons. The oxidation is also effective to convert much of the NO to NO2. In general, the mixed base metal oxides may be used as catalysts for the oxidation of nitrogen oxide in hot gas streams containing oxygen. They may optionally be used in a combination with palladium or platinum. But platinum, which is very expensive, does not have to be used in such oxidation reactions.Type: GrantFiled: August 10, 2010Date of Patent: November 15, 2011Assignee: GM Global Technology Operations LLCInventors: Gongshin Qi, Wei Li
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Patent number: 7993616Abstract: The disclosure provides methods and systems for sequestering and/or reducing sulfur oxides, nitrogen oxides and/or carbon dioxide present in industrial effluent fluid streams. A solid particulate material comprising a slag component, a binder component (distinct from the slag component), and optionally water is formed and then contacted with the effluent fluid stream to reduce at least one of the sulfur oxides, nitrogen oxides, and/or carbon dioxide. The contacting of the effluent stream may occur in a packed bed reactor with the solid dry particulate material. Methods of reducing pollutants from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided.Type: GrantFiled: September 18, 2008Date of Patent: August 9, 2011Assignee: C-Quest Technologies LLCInventor: Douglas C. Comrie
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Patent number: 7988766Abstract: Provided herein are adsorbents and methods of using the adsorbents to at least partially remove one or more adsorbates. In an aspect, an adsorbate within a phase is at least partially removed by providing an adsorbent material and contacting the adsorbent material with the phase having an adsorbate, to at least partially remove the adsorbate. Various adsorbents are disclosed having the chemical formula RE1-x-y-zBxB?yB?zOw, where RE is RE is a rare earth metal, B is a trivalent metal ion, B? is a transition metal ion or an alkaline earth element, B? is a transition metal ion, 0?x?0.25, 0?y?0.95, 0?z?0.75, w is a number which results in charge balance, and x+y+z<1.Type: GrantFiled: October 24, 2008Date of Patent: August 2, 2011Assignee: Eltron Research & Development Inc.Inventors: James H. White, Jesse W. Taylor
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Patent number: 7981389Abstract: A process for cracking hydrocarbons at atmospheric pressure includes the following steps: providing a catalyst, passing a gaseous hydrocarbon over the catalyst and exposing the catalyst to microwave energy. The hydrocarbons are broken down into lower Carbon number molecules.Type: GrantFiled: January 30, 2006Date of Patent: July 19, 2011Assignees: Toyota Motor Corporation, Toyota Motor Engineering & Manufacturing North America, Inc., The University of ConnecticutInventors: Paul T Fanson, Hirohito Hirata, Masaya Ibe, Steven L Suib, Young Chan Son
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Publication number: 20110171092Abstract: This invention relates to a cerium—zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium—zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 ?mol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 ?mol/g.Type: ApplicationFiled: December 9, 2010Publication date: July 14, 2011Applicants: DAIICHI KIGENSO KAGAKU KOGYO CO., LTD., N.E. CHEMCAT CORPORATIONInventors: Takahiro Wakita, Akira Kohara, Yasuharu Kanno, Hiroaki Omoto
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Patent number: 7976800Abstract: An integrated exhaust gas cooling system and method, including an expansion joint linking the system to an upstream source of exhaust gas and a pre-oxidation section through which exhaust gas travels. A hot temperature zone in which the exhaust gas is maintained at a temperature optimal for an oxidation process extends through the pre-oxidation section. An oxidation catalyst in the hot temperature zone is provided. The exhaust gas passes through the oxidation catalyst. Oxidized exhaust gas passes a post-oxidation section downstream of the oxidation catalyst. A tempering air stream is injected into the post-oxidation section to create a cool temperature zone in which the oxidized exhaust gas is cooled below the temperature in the hot temperature zone and to a temperature optimal for a reduction process. The system includes a reduction catalyst in the cool temperature zone through which the oxidized exhaust gas passes.Type: GrantFiled: December 30, 2009Date of Patent: July 12, 2011Assignee: Peerless MFG. Co.Inventors: Mark A. Buzanowski, Sean P. McMenamin
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Patent number: 7972420Abstract: Hydrogen-processing assemblies, components of hydrogen-processing assemblies, and fuel-processing and fuel cell systems that include hydrogen-processing assemblies. The hydrogen-processing assemblies include a hydrogen-separation assembly positioned within the internal volume of an enclosure in a spaced relation to at least a portion of the internal perimeter of the body of the enclosure.Type: GrantFiled: May 18, 2007Date of Patent: July 5, 2011Assignee: Idatech, LLCInventors: William A. Pledger, Vernon Wade Popham, R. Todd Studebaker, Kyle Taylor
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Patent number: 7972415Abstract: A breathing air purification device and method having a carbon-monoxide free sweep stream. Water vapor is removed from a compressed air stream using a membrane dryer, comprising, a membrane having a permeate portion and a non-permeate portion, a membrane housing which encases the membrane, a membrane feed inlet conduit connected to the membrane and a non-permeate gas outlet conduit fluidly connected to the non-permeate portion of the membrane. The sweep stream used to cleanse the outer permeate portion of the membrane dryer is taken from a catalyst filter. The catalyst filter includes a cartridge containing a bed of catalyst, two end pieces maintaining the cartridge within a catalyst bed housing and having outlet holes, a catalyst inlet conduit connected to the bed of catalyst and a product gas outlet conduit connected to the outlet holes. A sweep inlet tube provides a gas connection from the catalyst filter component to the permeate portion of the membrane.Type: GrantFiled: December 11, 2008Date of Patent: July 5, 2011Assignee: SPX CorporationInventors: Timothy J. Fox, Mark F. Honath
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Patent number: 7972582Abstract: An apparatus for treating an exhaust gas that includes a pre-treatment section that removes a powdery component, a water-soluble component or a hydrolytic component from the exhaust gas. The exhaust gas contains a fluorine compound and CO. A heating oxidative decomposing section performs heating oxidative decomposition of at least one of the fluorine compound and CO to detoxify the exhaust gas. The apparatus also has a post-treatment section for post-treating an acid gas such as HF which has been produced by the heating oxidative decomposition.Type: GrantFiled: November 29, 2002Date of Patent: July 5, 2011Assignee: Ebara CorporationInventors: Toyoji Shinohara, Yoichi Mori, Yasuhiko Suzuki, Hiroshi Aono, Yuji Shirao
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Publication number: 20110158872Abstract: The present invention relates to a method and a multi-component system for adsorbing contaminants and/or pollutants from a contaminated hot fluid by using a turbulent air stream, to adiabatically cool the temperature of the fluid, in association with one or more adsorbents. The system of the present invention can also be coupled to a recovery and recycling unit to recover and recycle the contaminant and/or pollutant and the adsorbent material.Type: ApplicationFiled: November 3, 2010Publication date: June 30, 2011Inventor: Parisa A. Ariya
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Patent number: 7955570Abstract: Highly active, low pressure drop catalyst systems. Catalytically active material is provided on at least a portion of the channel sidewalls of a body comprising one or more flow-through channels. The channel sidewalls preferably bear a charge, e.g., an electrostatic or electret charge, to help adhere the catalytically active material to the sidewall. The catalytically active material preferably includes gold provided on a particulate support, and PVD techniques are used to deposit catalytically active gold onto the support. Optionally, the gold-bearing particulates may be charged as well in a manner to facilitate attraction between the particulates and the sidewalls.Type: GrantFiled: February 28, 2007Date of Patent: June 7, 2011Assignee: 3M Innovative Properties CompanyInventors: Thomas I. Insley, Larry A. Brey, Gina M. Buccellato, Duane D. Fansler, Marvin E. Jones, Badri Veeraraghavan, Thomas E. Wood
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Patent number: 7931881Abstract: An air pollution control system includes an emission treatment system configured to receive flue gas, to reduce at least one pollutant therefrom, and to output emission treated flue gas. A first air heater in fluid communication with the emission treatment system includes a heat exchanger for heating forced air introduced thereto above a base temperature and thereby cooling emission treated flue gas from the emission treatment system to a stack discharge temperature. A second air heater in fluid communication with the first air heater to receive heated forced air therefrom includes a heat exchanger for heating forced air introduced thereto to a preheat temperature for combustion in a boiler and thereby cooling flue gas introduced from a boiler to the second air heater to an emission treatment temperature. The second air heater is in fluid communication with the emission treatment system to introduce cooled flue gas thereto.Type: GrantFiled: September 25, 2009Date of Patent: April 26, 2011Assignee: Babcock Power Environmental Inc.Inventors: Richard F. Abrams, Mark R. Lewis, Jeffrey Penterson
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Publication number: 20110085956Abstract: A mixer and mixer assembly for turbulent mixing and enhancing a chemical reaction is provided. A method for using a mixer and mixer assembly for treatment of fluids is also provided. The mixer generally includes a first and second end, a surface configured for turbulent mixing, a catalyst supported thereon, and surface structure configured to increase interaction of catalyst and reactant. The mixer assembly generally includes a mixer inserted inside a fluid container or a tube and may also include a catalytic sleeve for enhancing interaction between catalyst and reactant.Type: ApplicationFiled: December 21, 2010Publication date: April 14, 2011Inventor: Gary R. JERNBERG
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Patent number: 7922987Abstract: A diesel particulate filter with an oxidation catalyst comprising platinum and palladium deposited thereon is described. Addition of HC storage components to the oxidation catalyst allows the conversion of hydrocarbons and carbon monoxide to be improved significantly.Type: GrantFiled: August 17, 2007Date of Patent: April 12, 2011Assignee: Umicore AG & Co. KGInventors: Markus Koegel, Marcus Pfeifer, Gerald Jeske, Frank Walter Schuetze, Stéphanie Frantz, Thomas Kreuzer
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Patent number: 7922988Abstract: A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Engine exhaust treatment system and methods of using the same are also provided. The catalytic material can be provided in layers such that a larger amount of oxygen storage component is provided in a downstream zone as compared to an upstream zone. For example, the upstream zone can be configured to have one, two, or three layers, and the downstream zone can be independently configured to have one, two, or three layers. In one or more embodiments, the catalyst supported on a carrier has three layers, where at least two of the layers are zoned to have an oxygen storage component being present in an upstream zone in an amount that is less than the oxygen storage component present in the downstream zone.Type: GrantFiled: October 30, 2009Date of Patent: April 12, 2011Inventors: Michel Deeba, Stephan Siemund, Xinyi Wei, Stefan Kotrel, Knut Wassermann, Glenn Svoboda, Harold Rabinowitz
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Publication number: 20110076215Abstract: An air pollution control system includes an emission treatment system configured to receive flue gas, to reduce at least one pollutant therefrom, and to output emission treated flue gas. A first air heater in fluid communication with the emission treatment system includes a heat exchanger for heating forced air introduced thereto above a base temperature and thereby cooling emission treated flue gas from the emission treatment system to a stack discharge temperature. A second air heater in fluid communication with the first air heater to receive heated forced air therefrom includes a heat exchanger for heating forced air introduced thereto to a preheat temperature for combustion in a boiler and thereby cooling flue gas introduced from a boiler to the second air heater to an emission treatment temperature. The second air heater is in fluid communication with the emission treatment system to introduce cooled flue gas thereto.Type: ApplicationFiled: September 25, 2009Publication date: March 31, 2011Applicant: Babcock Power Environmental Inc.Inventors: Richard F. Abrams, Mark Lewis, Jeffrey Penterson
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Patent number: 7906098Abstract: The present invention relates to a method for oxidizing CO, comprising: passing a first feed comprising CO and a second feed comprising oxygen, in an oxidation zone, over a catalyst comprising highly dispersed gold on sulfated zirconia, at oxidation conditions, to produce an effluent comprising a lower level of CO than in the first feed.Type: GrantFiled: February 5, 2010Date of Patent: March 15, 2011Assignee: Chevron U.S.A. Inc.Inventors: Alexander E. Kuperman, Michael E. Moir
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Patent number: 7892507Abstract: The processing of gases, in particular the exhaust gas of an internal combustion/diesel engine, entails catalytically oxidizing the carbon monoxide and hydrocarbons contained therein in an oxygen-rich medium, in the presence of a metal oxidation catalyst that includes a silica-containing zirconia support.Type: GrantFiled: June 27, 2006Date of Patent: February 22, 2011Assignee: Rhodia ChimieInventors: Emmanuel Rohart, Stéphan Verdier, Aimin Huang
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Patent number: 7884048Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper, zinc and zirconium oxides and whose copper-comprising component has a degree of reduction, expressed as weight ratio of metallic copper to the sum of metallic copper and copper oxides, calculated as CuO, of at least 45% and not more than 75%.Type: GrantFiled: July 9, 2010Date of Patent: February 8, 2011Assignee: BASF SEInventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
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Patent number: 7871957Abstract: A durable catalyst support/catalyst is capable of extended water gas shift operation under conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf, and the third importantly being Ti, the three metals comprising at least 80% of the metal constituents of the mixed metal oxide and the Ti being present in a range of 5% to 45% by metals-only atomic percent of the mixed metal oxide. The mixed metal oxide has an average crystallite size less than 6 nm and forms a skeletal structure with pores whose diameters are in the range of 4-9 nm and normally greater than the average crystallite size. The surface area of the skeletal structure per volume of the material of the structure is greater than about 240 m2/cm3. The method of making and use are also described.Type: GrantFiled: May 15, 2007Date of Patent: January 18, 2011Assignee: UTC Power CorporationInventors: Rhonda R. Willigan, Thomas Henry Vanderspurt, Sonia Tulyani, Rakesh Radhakrishnan, Susanne Marie Opalka, Sean C. Emerson
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Patent number: 7850937Abstract: A catalytic system for CO removal includes a gold (Au) catalyst and a co-catalyst in contact with an aqueous phase, and a fuel cell system using the same. The catalytic system is relatively very simple compared to a common CO removal system, and can highly efficiently remove CO at low temperature without side reaction. In addition, water contacted in the catalytic system can act as a buffer for the rise and fall of temperature, and thus, can cope with an accidental temperature change. Further, the catalytic system shows a low operation temperature, and thus, can be operated over a broad operation range considering the activity and/or selectivity of the gold catalyst, etc.Type: GrantFiled: January 18, 2006Date of Patent: December 14, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Yulia Potapova, Eun-duck Park, Eun-yong Ko
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Publication number: 20100303696Abstract: A method is described for treating a gas stream containing either fuel only or both fuel and oxidant gases, such as hydrogen, nitrous oxide or a hydrocarbon gas. The gas stream is conveyed through a vacuum pumping arrangement comprising a plurality of pumping stages. Either immediately before or immediately after the final pumping stage, the steps of adding a gaseous oxidant to the gas stream and oxidising the fuel gas are performed. By treating the gas stream in this manner, the risk of uncontrolled combustion of the fuel gas can be minimised.Type: ApplicationFiled: December 2, 2008Publication date: December 2, 2010Inventors: James Robert Smith, Gareth David Stanton
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Patent number: 7837953Abstract: Provided are improved carbon monoxide removal articles and processes for treating hydrogen gas streams to achieve very low threshold levels of carbon monoxide. The articles have a substrate with an inlet end, an outlet end, a length extending between the inlet end to the outlet end, wall elements and a plurality of cells defined by the wall elements. A first layer is deposited on the wall elements from the inlet end and extending at least partially toward the outlet end. The first layer has a preferential carbon monoxide oxidation catalyst. A second layer contains a methanation catalyst, and is deposited on at least part of the first layer from the outlet end. The second layer has a length that is about 10-70% of the substrate length.Type: GrantFiled: June 22, 2006Date of Patent: November 23, 2010Assignee: BASF CorporationInventor: Lawrence Shore
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Patent number: 7824455Abstract: A method of reducing the amount of carbon monoxide in process fuel gas in a feed stream for a fuel cell. The method includes introducing a hydrocarbon feed stream into a primary reactor and reacting the hydrocarbon feed stream in effective contact with a reforming catalyst forming primary reactor products containing hydrogen, carbon monoxide, carbon dioxide, and methane; placing a high activity water gas shift catalyst system into a water gas shift converter, introducing the primary reactor products into the water gas shift converter in effective contact with the high activity water gas shift catalyst system, and reacting the carbon monoxide and water to form carbon dioxide and hydrogen using a water gas shift reaction forming the feed stream for the fuel cell; and introducing the feed stream into the fuel cell. The high water gas shift catalyst system includes a noble metal, a support comprising a mixed metal oxide of cerium oxide and at least one of zirconium oxide or lanthanum oxide.Type: GrantFiled: July 10, 2003Date of Patent: November 2, 2010Assignee: General Motors CorporationInventors: Anca Faur-Ghenciu, Nathan Edward Trusty, Mark Robert Feaviour, Jessica Grace Reinkingh, Phillip Shady, Paul Joseph Andersen
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Publication number: 20100273640Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper, zinc and zirconium oxides and whose copper-comprising component has a degree of reduction, expressed as weight ratio of metallic copper to the sum of metallic copper and copper oxides, calculated as CuO, of at least 45% and not more than 75%.Type: ApplicationFiled: July 9, 2010Publication date: October 28, 2010Applicant: BASF SEInventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
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Patent number: 7820123Abstract: 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 with zeolite effective for the adsorption of hydrocarbon is disposed at a downstream side of the exhaust gas.Type: GrantFiled: July 15, 2008Date of Patent: October 26, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Takuya Ikeda, Maki Kamikubo
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Publication number: 20100266473Abstract: A method for oxidizing carbon monoxide (CO) and volatile organic compounds (VOCS) comprises contacting a gas containing water vapor and said CO and VOCs with a catalyst composition comprising at least one base metal promoter and at least one base metal catalyst supported on an oxide support material comprising one or more of alumina, silica, zirconia, ceria, and titania, wherein the VOCs comprise one or more of methyl acetate, methane, methyl bromide, benzene, methanol, methyl ethyl ketone, butane, and butene.Type: ApplicationFiled: April 21, 2009Publication date: October 21, 2010Applicant: Johnson Matthey Public Limited CompanyInventors: Hai-Ying Chen, Arthur J. Reining, Paul J. Andersen, Rita Aiello
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Publication number: 20100261856Abstract: Methods for the removal of impurities, for example, carbon monoxide, from a polymerization feed streams are provided.Type: ApplicationFiled: November 12, 2008Publication date: October 14, 2010Applicant: UNIVATION TECHNOLOGIES, LLCInventor: Ronald S. Eisinger
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Publication number: 20100254874Abstract: The invention relates to a method for controlling a fume treatment centre (FTC) (23), scrubbing the baking fumes from a rotary baking furnace (1), in which the fumes are drawn in through at least one suction manifold (11) of the baking furnace (1) and collected in a duct (20, 20?) that conveys said fumes to the fume treatment centre (23). The fume treatment centre includes a tower (24) which sprays water into the fumes in order to cool same and a least one reactor (25) for the physico-chemical neutralisation of the fumes, comprising contact with a reagent powder, such as alumina, followed by filtering (36) of the loaded reagent and the fume dust and recycling in the reactor (25) of at least one fraction of the filtered reagent and mixing of the same with fresh reagent.Type: ApplicationFiled: May 27, 2008Publication date: October 7, 2010Applicants: SOLIOS ENVIRONNEMENT, SOLIOS CARBONEInventors: Pierre Mahieu, Thierry Malard
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Publication number: 20100226842Abstract: A method for oxidizing an amount of CO in a CO-containing gas stream, e.g., a combustion stream from fuel combustion, is provided. The method comprises exposing the CO-containing gas stream to a catalytic coating at reaction conditions, including least 8 vol. % and a temperature of at least 600° C. At these reaction conditions, the method comprises generating gaseous intermediate oxidizing species at the catalytic coating for oxidation of the carbon monoxide within the CO-containing gas stream as a homogeneous reaction to improve CO removal efficiency.Type: ApplicationFiled: December 17, 2009Publication date: September 9, 2010Inventors: Anatoly Sobolevskiy, Joseph A. Rossin, Michael J. Knapke
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Patent number: 7790127Abstract: A method of reducing NOx in a lean burn engine exhaust stream from a hydrocarbon burning engine may be first passing the exhaust stream over a thrifted diesel oxidation catalyst that substantially completes the oxidation of carbon monoxide to carbon dioxide and the oxidation of hydrocarbons (HC) to carbon dioxide and water. Next, separate additions of ozone and ammonia or urea may be introduced to the exhaust gas stream upstream of the catalytic reduction reactor at temperatures below 250 degrees Celsius. The additions of ozone and ammonia or urea modify the exhaust gas composition to improve the performance of NOx reduction catalysts in the catalytic reduction reactor. At temperatures above 250 degrees, the ozone addition may be reduced or eliminated, while the ammonia addition can be controlled as a function of the amount of NOx in the exhaust stream and the temperature of the catalytic reduction reactor.Type: GrantFiled: March 2, 2009Date of Patent: September 7, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Jong H. Lee, Byong Kwon Cho
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Patent number: 7781368Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper, zinc and zirconium oxides and whose copper-comprising component has a degree of reduction, expressed as weight ratio of metallic copper to the sum of metallic copper and copper oxides, calculated as CuO, of at least 45% and not more than 75%.Type: GrantFiled: February 7, 2007Date of Patent: August 24, 2010Assignee: BASF SEInventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
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Patent number: 7758834Abstract: A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjunction with a carrier: a first layer deposited on the carrier and comprising palladium deposited on a refractory metal oxide and an oxygen storage component; a second layer deposited on the first layer and comprising rhodium deposited on a refractory metal oxide and an oxygen storage component; and a third layer deposited on the second layer and comprising palladium deposited on a refractory metal oxide.Type: GrantFiled: April 23, 2009Date of Patent: July 20, 2010Assignee: BASF CorporationInventors: Shau-Lin F. Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo, Michel Deeba
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Patent number: 7758831Abstract: Regenerative selective catalytic reduction (RSCR) systems and processes are provided whereby NOx and CO levels in gases are reduced by mixing the gas with a reactant and then introducing the gas into an RSCR apparatus for treatment that entails heating the gas, causing the gas to undergo one or more catalytic reactions, and then directing the gas through a heat transfer area, to which the gas provides heat for use in connection with successive cycles of the RSCR process.Type: GrantFiled: January 16, 2009Date of Patent: July 20, 2010Assignee: Babcock Power Environmental Inc.Inventors: Richard F. Abrams, John Robert Harold
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Patent number: 7754171Abstract: A multilayered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Provided is a catalytic material of at least four layers in conjunction with a carrier, where each of the layers includes a support, at least three layers comprise a precious metal component, and at least one layer comprises an oxygen storage component (OSC). The catalytic material can further comprise a fifth layer, where at least four layers comprise a precious metal component, at least one layer comprises an oxygen storage component, and at least one layer is substantially free of an oxygen storage component.Type: GrantFiled: January 9, 2008Date of Patent: July 13, 2010Assignee: BASF CorporationInventors: Shau-Lin F. Chen, Knut Wassermann, Stephan Siemund, Tian Luo, Torsten Neubauer, Jin Sakakibara, Harold Rabinowitz
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Patent number: 7740819Abstract: The present invention has an object to more enhance the efficiency of the purification of the CO-containing exhaust gases with a catalytic-component-supporting type catalyst, particularly, to enable both achievement of high purification efficiency and long-term stable maintenance of high purification efficiency without increasing the quantity of the catalytic component as supported. As a means of achieving this object, a process for purification of exhaust gases, according to the present invention, is a process for purification of exhaust gases to remove CO therefrom, and is characterized by comprising the step of bringing the exhaust gases into contact with a catalyst layer at a temperature of 250 to 600° C., a pressure drop of not more than 100 mmH2O, and a linear velocity of 0.5 to 10 m/s, wherein the catalyst layer includes a honeycomb-structural catalyst having an opening size of 1.0 to 3.0 mm, an opening ratio of 60 to 80%, and an inner wall thickness of less than 2 mm.Type: GrantFiled: January 30, 2003Date of Patent: June 22, 2010Assignee: Nippon Shokubai Co., Ltd.Inventors: Atsushi Morita, Junji Okamura, Shinyuki Masaki, Noboru Sugishima, Motonobu Kobayashi
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Patent number: 7736609Abstract: The present invention provides a system to purify hydrogen involving the use of a hydride compressor and catalytic converters combined with a process controller.Type: GrantFiled: December 22, 2006Date of Patent: June 15, 2010Assignee: Ergenics Corp.Inventor: Peter Mark Golben
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Patent number: 7731922Abstract: Exhaust air containing particulate and carbon monoxide gas contaminants is withdrawn from a confined environment, such as a food cooking area, by a circulation system which liquid scrubs particulate contaminants from the exhaust flow, removes liquid mist from the flow, and then catalyzes or neutralizes the carbon monoxide gas contaminants into benign carbon dioxide before discharging the flow back into the confined environment. Removing contaminants in this manner allows a substantial amount of the thermal energy content of the exhaust air to be saved and reused within the confined environment, rather than discharging the thermal energy into the ambient environment.Type: GrantFiled: June 29, 2007Date of Patent: June 8, 2010Inventor: Danny L. Hopkins
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Patent number: 7727931Abstract: Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support.Type: GrantFiled: September 23, 2004Date of Patent: June 1, 2010Assignee: 3M Innovative Properties CompanyInventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
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Publication number: 20100112397Abstract: The present invention provides a catalyst precursor substance containing copper, zinc, and aluminum and exhibiting an X-ray diffraction pattern having a broad peak at a specific interplanar spacing d (?). The present invention also provides a method for producing the catalyst precursor substance by mixing a solution containing a copper salt, a zinc salt, and an aluminum salt with a solution containing an alkali metal hydroxide or an alkaline earth metal hydroxide, thereby forming a precipitate. In the present invention, a catalyst is prepared through calcining of the catalyst precursor; the catalyst is employed for water gas shift reaction; and carbon monoxide conversion is carried out by use of the catalyst.Type: ApplicationFiled: April 2, 2008Publication date: May 6, 2010Applicant: Idemitsu Kosan Co., LtdInventors: Kozo Takatsu, Yoshimi Kawashima, Satoshi Nakai
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Publication number: 20100104492Abstract: The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants) and, in particular to a new and useful method and apparatus designed to remove and/or capture carbon oxides (e.g., CO2 or CO) from flue gas-, or combustion gas-, generating devices. In another embodiment, the present invention relates to a method for achieving emission control from flue gas-, or combustion gas-, generating devices where the method achieves a reduction in, or the elimination of, carbon oxides or sulfur oxides contained in the flue gas-, or combustion gas-, generating devices.Type: ApplicationFiled: October 13, 2009Publication date: April 29, 2010Inventor: MICHAEL P. MAY