Utilizing Solid Sorbent, Catalyst, Or Reactant Patents (Class 423/247)
  • Patent number: 8101146
    Abstract: 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: Grant
    Filed: April 8, 2011
    Date of Patent: January 24, 2012
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Joseph M. Fedeyko, Hai-Ying Chen, Arthur J. Reining
  • Publication number: 20120009109
    Abstract: 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: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Andrew David Wright, Vincent White, Timothy Christopher Golden
  • Publication number: 20110311635
    Abstract: 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: Application
    Filed: February 12, 2010
    Publication date: December 22, 2011
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Galen D. Stucky, Nicholas C. Strandwitz
  • Patent number: 8080224
    Abstract: 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: Grant
    Filed: May 5, 2006
    Date of Patent: December 20, 2011
    Assignee: Sud-Chemie Inc.
    Inventors: Hiroshi Takeda, Troy L. Walsh, Jon P. Wagner
  • Patent number: 8071062
    Abstract: 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: Grant
    Filed: December 17, 2009
    Date of Patent: December 6, 2011
    Assignee: Siemens Energy, Inc.
    Inventors: Anatoly Sobolevskiy, Joseph A. Rossin, Michael J. Knapke
  • Patent number: 8066963
    Abstract: 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: Grant
    Filed: September 26, 2008
    Date of Patent: November 29, 2011
    Assignee: Umicore AG & Co. KG
    Inventors: Raoul Klingmann, Martin Roesch, Dieter Lindner
  • Publication number: 20110280782
    Abstract: 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: Application
    Filed: July 26, 2011
    Publication date: November 17, 2011
    Applicant: BASF SE
    Inventors: Stephan Hatscher, Michael Hesse
  • Publication number: 20110280781
    Abstract: 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: Application
    Filed: June 23, 2011
    Publication date: November 17, 2011
    Inventors: 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
  • Publication number: 20110280780
    Abstract: 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: Application
    Filed: June 23, 2011
    Publication date: November 17, 2011
    Inventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
  • Patent number: 8057767
    Abstract: 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: Grant
    Filed: August 10, 2010
    Date of Patent: November 15, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Gongshin Qi, Wei Li
  • Patent number: 7993616
    Abstract: 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: Grant
    Filed: September 18, 2008
    Date of Patent: August 9, 2011
    Assignee: C-Quest Technologies LLC
    Inventor: Douglas C. Comrie
  • Patent number: 7988766
    Abstract: 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: Grant
    Filed: October 24, 2008
    Date of Patent: August 2, 2011
    Assignee: Eltron Research & Development Inc.
    Inventors: James H. White, Jesse W. Taylor
  • Patent number: 7981389
    Abstract: 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: Grant
    Filed: January 30, 2006
    Date of Patent: July 19, 2011
    Assignees: Toyota Motor Corporation, Toyota Motor Engineering & Manufacturing North America, Inc., The University of Connecticut
    Inventors: Paul T Fanson, Hirohito Hirata, Masaya Ibe, Steven L Suib, Young Chan Son
  • Publication number: 20110171092
    Abstract: 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: Application
    Filed: December 9, 2010
    Publication date: July 14, 2011
    Applicants: DAIICHI KIGENSO KAGAKU KOGYO CO., LTD., N.E. CHEMCAT CORPORATION
    Inventors: Takahiro Wakita, Akira Kohara, Yasuharu Kanno, Hiroaki Omoto
  • Patent number: 7976800
    Abstract: 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: Grant
    Filed: December 30, 2009
    Date of Patent: July 12, 2011
    Assignee: Peerless MFG. Co.
    Inventors: Mark A. Buzanowski, Sean P. McMenamin
  • Patent number: 7972420
    Abstract: 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: Grant
    Filed: May 18, 2007
    Date of Patent: July 5, 2011
    Assignee: Idatech, LLC
    Inventors: William A. Pledger, Vernon Wade Popham, R. Todd Studebaker, Kyle Taylor
  • Patent number: 7972415
    Abstract: 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: Grant
    Filed: December 11, 2008
    Date of Patent: July 5, 2011
    Assignee: SPX Corporation
    Inventors: Timothy J. Fox, Mark F. Honath
  • Patent number: 7972582
    Abstract: 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: Grant
    Filed: November 29, 2002
    Date of Patent: July 5, 2011
    Assignee: Ebara Corporation
    Inventors: Toyoji Shinohara, Yoichi Mori, Yasuhiko Suzuki, Hiroshi Aono, Yuji Shirao
  • Publication number: 20110158872
    Abstract: 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: Application
    Filed: November 3, 2010
    Publication date: June 30, 2011
    Inventor: Parisa A. Ariya
  • Patent number: 7955570
    Abstract: 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: Grant
    Filed: February 28, 2007
    Date of Patent: June 7, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas I. Insley, Larry A. Brey, Gina M. Buccellato, Duane D. Fansler, Marvin E. Jones, Badri Veeraraghavan, Thomas E. Wood
  • Patent number: 7931881
    Abstract: 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: Grant
    Filed: September 25, 2009
    Date of Patent: April 26, 2011
    Assignee: Babcock Power Environmental Inc.
    Inventors: Richard F. Abrams, Mark R. Lewis, Jeffrey Penterson
  • Publication number: 20110085956
    Abstract: 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: Application
    Filed: December 21, 2010
    Publication date: April 14, 2011
    Inventor: Gary R. JERNBERG
  • Patent number: 7922987
    Abstract: 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: Grant
    Filed: August 17, 2007
    Date of Patent: April 12, 2011
    Assignee: Umicore AG & Co. KG
    Inventors: Markus Koegel, Marcus Pfeifer, Gerald Jeske, Frank Walter Schuetze, Stéphanie Frantz, Thomas Kreuzer
  • Patent number: 7922988
    Abstract: 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: Grant
    Filed: October 30, 2009
    Date of Patent: April 12, 2011
    Inventors: Michel Deeba, Stephan Siemund, Xinyi Wei, Stefan Kotrel, Knut Wassermann, Glenn Svoboda, Harold Rabinowitz
  • Publication number: 20110076215
    Abstract: 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: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Applicant: Babcock Power Environmental Inc.
    Inventors: Richard F. Abrams, Mark Lewis, Jeffrey Penterson
  • Patent number: 7906098
    Abstract: 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: Grant
    Filed: February 5, 2010
    Date of Patent: March 15, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Alexander E. Kuperman, Michael E. Moir
  • Patent number: 7892507
    Abstract: 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: Grant
    Filed: June 27, 2006
    Date of Patent: February 22, 2011
    Assignee: Rhodia Chimie
    Inventors: Emmanuel Rohart, Stéphan Verdier, Aimin Huang
  • Patent number: 7884048
    Abstract: 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: Grant
    Filed: July 9, 2010
    Date of Patent: February 8, 2011
    Assignee: BASF SE
    Inventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
  • Patent number: 7871957
    Abstract: 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: Grant
    Filed: May 15, 2007
    Date of Patent: January 18, 2011
    Assignee: UTC Power Corporation
    Inventors: Rhonda R. Willigan, Thomas Henry Vanderspurt, Sonia Tulyani, Rakesh Radhakrishnan, Susanne Marie Opalka, Sean C. Emerson
  • Patent number: 7850937
    Abstract: 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: Grant
    Filed: January 18, 2006
    Date of Patent: December 14, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun-chul Lee, Soon-ho Kim, Yulia Potapova, Eun-duck Park, Eun-yong Ko
  • Publication number: 20100303696
    Abstract: 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: Application
    Filed: December 2, 2008
    Publication date: December 2, 2010
    Inventors: James Robert Smith, Gareth David Stanton
  • Patent number: 7837953
    Abstract: 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: Grant
    Filed: June 22, 2006
    Date of Patent: November 23, 2010
    Assignee: BASF Corporation
    Inventor: Lawrence Shore
  • Patent number: 7824455
    Abstract: 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: Grant
    Filed: July 10, 2003
    Date of Patent: November 2, 2010
    Assignee: General Motors Corporation
    Inventors: Anca Faur-Ghenciu, Nathan Edward Trusty, Mark Robert Feaviour, Jessica Grace Reinkingh, Phillip Shady, Paul Joseph Andersen
  • Publication number: 20100273640
    Abstract: 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: Application
    Filed: July 9, 2010
    Publication date: October 28, 2010
    Applicant: BASF SE
    Inventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
  • Patent number: 7820123
    Abstract: 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: Grant
    Filed: July 15, 2008
    Date of Patent: October 26, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takuya Ikeda, Maki Kamikubo
  • Publication number: 20100266473
    Abstract: 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: Application
    Filed: April 21, 2009
    Publication date: October 21, 2010
    Applicant: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Arthur J. Reining, Paul J. Andersen, Rita Aiello
  • Publication number: 20100261856
    Abstract: Methods for the removal of impurities, for example, carbon monoxide, from a polymerization feed streams are provided.
    Type: Application
    Filed: November 12, 2008
    Publication date: October 14, 2010
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventor: Ronald S. Eisinger
  • Publication number: 20100254874
    Abstract: 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: Application
    Filed: May 27, 2008
    Publication date: October 7, 2010
    Applicants: SOLIOS ENVIRONNEMENT, SOLIOS CARBONE
    Inventors: Pierre Mahieu, Thierry Malard
  • Publication number: 20100226842
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: September 9, 2010
    Inventors: Anatoly Sobolevskiy, Joseph A. Rossin, Michael J. Knapke
  • Patent number: 7790127
    Abstract: 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: Grant
    Filed: March 2, 2009
    Date of Patent: September 7, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jong H. Lee, Byong Kwon Cho
  • Patent number: 7781368
    Abstract: 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: Grant
    Filed: February 7, 2007
    Date of Patent: August 24, 2010
    Assignee: BASF SE
    Inventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
  • Patent number: 7758834
    Abstract: 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: Grant
    Filed: April 23, 2009
    Date of Patent: July 20, 2010
    Assignee: BASF Corporation
    Inventors: Shau-Lin F. Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo, Michel Deeba
  • Patent number: 7758831
    Abstract: 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: Grant
    Filed: January 16, 2009
    Date of Patent: July 20, 2010
    Assignee: Babcock Power Environmental Inc.
    Inventors: Richard F. Abrams, John Robert Harold
  • Patent number: 7754171
    Abstract: 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: Grant
    Filed: January 9, 2008
    Date of Patent: July 13, 2010
    Assignee: BASF Corporation
    Inventors: Shau-Lin F. Chen, Knut Wassermann, Stephan Siemund, Tian Luo, Torsten Neubauer, Jin Sakakibara, Harold Rabinowitz
  • Patent number: 7740819
    Abstract: 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: Grant
    Filed: January 30, 2003
    Date of Patent: June 22, 2010
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Atsushi Morita, Junji Okamura, Shinyuki Masaki, Noboru Sugishima, Motonobu Kobayashi
  • Patent number: 7736609
    Abstract: 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: Grant
    Filed: December 22, 2006
    Date of Patent: June 15, 2010
    Assignee: Ergenics Corp.
    Inventor: Peter Mark Golben
  • Patent number: 7731922
    Abstract: 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: Grant
    Filed: June 29, 2007
    Date of Patent: June 8, 2010
    Inventor: Danny L. Hopkins
  • Patent number: 7727931
    Abstract: 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: Grant
    Filed: September 23, 2004
    Date of Patent: June 1, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
  • Publication number: 20100112397
    Abstract: 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: Application
    Filed: April 2, 2008
    Publication date: May 6, 2010
    Applicant: Idemitsu Kosan Co., Ltd
    Inventors: Kozo Takatsu, Yoshimi Kawashima, Satoshi Nakai
  • Publication number: 20100104492
    Abstract: 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: Application
    Filed: October 13, 2009
    Publication date: April 29, 2010
    Inventor: MICHAEL P. MAY