Of Group Vii (i.e., Mn, Tc Or Re) Patents (Class 502/241)
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Publication number: 20110172482Abstract: A catalyst that comprises at least one binder and at least one crystallized material with hierarchized and organized porosity in the fields of microporosity and mesoporosity is described, whereby said crystallized material consists of at least two elementary spherical particles, each of said particles comprising a mesostructured silicon-oxide-based matrix that has a mesopore diameter of between 1.5 and 30 nm and that has microporous and crystallized walls with a thickness of between 1 and 60 nm, whereby said elementary spherical particles have a maximum diameter of 200 microns. Said catalyst is used in a process for oligomerization of an olefinic feedstock that contains hydrocarbon molecules that have 2 to 12 carbon atoms per molecule.Type: ApplicationFiled: April 28, 2009Publication date: July 14, 2011Applicant: IFP ENERGIES NOUVELLESInventors: Amandine Cabiac, Alexandra Chaumonnot, Laurent Simon
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Patent number: 7977274Abstract: The invention pertains to a catalyst useful for the epoxidation of an olefin. More particularly, the invention pertains to an improved catalyst useful for the epoxidation of ethylene to ethylene oxide. The catalyst has improved selectivity in the epoxidation process. The catalyst comprises a solid support having a surface, which has a first mode of pores which have a diameter ranging from about 0.01 ?m to about 5 ?m and having a differential pore volume peak in the range of from about 0.01 ?m to about 5 ?m. The surface then has a second mode of pores, different from the first mode of pores, which second mode of pores have a diameter ranging from about 1 ?m to about 20 ?m and have a differential pore volume peak in the range of from about 1 ?m to about 20 ?m.Type: GrantFiled: September 29, 2006Date of Patent: July 12, 2011Assignee: SD Lizenzverwertungsgesellschaft mbH & Co. KGInventor: Christian Gueckel
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Publication number: 20110136658Abstract: A catalyst used in the reaction of oxidative bromination of methane is provided. The catalyst is prepared by the following procedures: mixing at least one of the precursors selected from the compounds of Rh, Ru, Cu, Zn, Ag, Ce, V, W, Cd, Mo, Mn, Cr and La which can dissolve in water with the Si precursor, hydrolyzing, drying and sintering. In the catalysis system, methane reacts with HBr, H2O and oxygen source (O2, air or oxygen-rich air), finally CH3Br and CH2Br2 are produced. Another catalyst used in the reaction of condensation of methane bromide to C3-C13 hydrocarbons is also provided. This catalyst is prepared by supporting compounds of Zn or Mg on molecular sieves such as HZSM-5, HY, Hb, 3A, 4A, 5A or 13X et al. With this catalyst, CH3Br and CH2Br2 produced in the former process can react further to give C3 to C13 hydrocarbons and HBr, and HBr can be recycled as a medium.Type: ApplicationFiled: April 14, 2008Publication date: June 9, 2011Inventors: Zhen Liu, Hongmin Zhang, Wensheng Li, Yanqun Ren, Xiaoping Zhou
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Patent number: 7951739Abstract: An improved spent catalyst regenerator which contains sub-troughs branching off from the main trough, distribution troughs which extend outward from the sides of the main trough and the sub-troughs, and downflow tubes extending downward from the bottom of the main trough and sub-troughs.Type: GrantFiled: February 18, 2010Date of Patent: May 31, 2011Assignee: Stone & Webster Process Technology, Inc.Inventors: Chris Santner, Eusebius Gbordzoe, Harvey McQuiston
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Patent number: 7943108Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: GrantFiled: September 11, 2008Date of Patent: May 17, 2011Assignee: MEMC Electronic Materials, Inc.Inventors: Vithal Revankar, Jameel Ibrahim
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Publication number: 20110101265Abstract: A catalyst for producing a carbon nanofiber is obtained by dissolving or dispersing [I] a compound containing Fe element; [II] a compound containing Co element; [III] a compound containing at least one element selected from the group consisting of Ti, V, Cr, and Mn; and [IV] a compound containing at least one element selected from the group consisting of W and Mo in a solvent to obtain a solution or the fluid dispersion, and then impregnating a particulate carrier with the solution or the fluid dispersion. A carbon nanofiber is obtained by bringing a carbon element-containing compound into contact with the catalyst in a vapor phase at a temperature of 300 degrees C. to 500 degrees C.Type: ApplicationFiled: June 16, 2009Publication date: May 5, 2011Applicant: SHOWA DENKO K.K.Inventors: Eiji Kambara, Akihiro Kitazaki
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Patent number: 7932408Abstract: The invention is directed to a catalyst for the epoxidation of an olefin to an olefin oxide, the catalyst comprising a support having at least two pore size distributions, each pore size distribution possessing a different mean pore size and a different pore size of maximum concentration, the catalyst further comprising a catalytically effective amount of silver, a promoting amount of rhenium, and a promoting amount of one or more alkali metals, wherein the at least two pore size distributions are within a pore size range of about 0.01 ?m to about 50 ?m. The invention is also directed to a process for the oxidation of an olefin to an olefin oxide using the above-described catalyst.Type: GrantFiled: January 27, 2009Date of Patent: April 26, 2011Assignee: Scientific Design Company, Inc.Inventor: Christian Gückel
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Patent number: 7919430Abstract: It is an object to provide a novel oxide catalyst for producing an unsaturated acid or unsaturated nitrile by which reaction results are good and a high yield can be stably maintained for a prolonged period of time, a process for producing the oxide catalyst, and a process for producing an unsaturated acid or unsaturated nitrile using the oxide catalyst. According to the present invention, there is provided an oxide catalyst represented by following compositional formula (1): Mo1VaSbbNbcMndWeYfOn??(1) wherein Y represents at least one element selected from alkaline earth metals and rare earth metals; a, b, c, d, e, f, and n each represents an atomic ratio based on one atom of Mo; 0.1?a?1, 0.01?b?1, 0.01?c?1, 0?d?0.1, 0?e?0.1, 0<(d+e)?0.1, 0?f?1; and n is a number determined by valencies of the constituent metals.Type: GrantFiled: March 15, 2007Date of Patent: April 5, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Eri Tateno, Satoru Komada
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Patent number: 7909986Abstract: Reduced emissions of gas phase reduced nitrogen species in the off gas of an FCC regenerator operated in a partial or incomplete mode of combustion is achieved by contacting the off gas with an oxidative catalyst/additive composition having the ability to reduce gas phase nitrogen species to molecular nitrogen and to oxidize CO under catalytic cracking conditions. The oxidative catalyst/additive composition is used in an amount less than the amount necessary to prevent afterburn. Fluidizable particles of the oxidative catalyst/additives are circulated throughout the partial or incomplete burn FCC unit along with the FCC catalyst inventory. The flue gas having a reduced content of gas phase reduced nitrogen species and NOx is passed to a downstream CO boiler, preferably a low NOx CO boiler. In the CO boiler, as CO is oxidized to CO2, a reduced amount of gas phase reduced nitrogen species is oxidized to NOx, thereby providing an increase in the overall reduction of NOx emitted into the environment.Type: GrantFiled: May 6, 2009Date of Patent: March 22, 2011Assignee: W. R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 7910514Abstract: An inorganic fiber catalyst includes an alumina-silica fiber base material, and a plurality of catalyst component particles contained in the alumina-silica fiber base material. A mean particle diameter of the catalyst component particles contained in at least a surface portion of the alumina-silica fiber base material is 50 nm or less, and a standard deviation of particle diameters of the catalyst component particles is 30 or less.Type: GrantFiled: July 10, 2008Date of Patent: March 22, 2011Assignees: Nissan Motor Co., Ltd., Nitivy Co., Ltd.Inventors: Hideaki Morisaka, Masahiro Takaya, Yasunari Hanaki, Kouji Masuda, Michiaki Sagesaka, Naoki Harakawa
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Publication number: 20110065572Abstract: The present invention is an improved method for preparing a heterogeneous, supported hydrogenation catalyst that comprises a Group VIII A metal and a catalyst support (for example, SiO2, with either a hydrophilic or a hydrophobic surface) via aqueous deposition precipitation as well as the catalyst prepared by said method.Type: ApplicationFiled: May 8, 2009Publication date: March 17, 2011Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventors: Michael M. Olken, Edward M. Calverley
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Patent number: 7906015Abstract: Reduced emissions of gas phase reduced nitrogen species in the off gas of an FCC regenerator operated in a partial or incomplete mode of combustion is achieved by contacting the off gas with an oxidative catalyst/additive composition having the ability to reduce gas phase nitrogen species to molecular nitrogen and to oxidize CO under catalytic cracking conditions. The oxidative catalyst/additive composition is used in an amount less than the amount necessary to prevent afterburn. Fluidizable particles of the oxidative catalyst/additives are circulated throughout the partial or incomplete burn FCC unit along with the FCC catalyst inventory. The flue gas having a reduced content of gas phase reduced nitrogen species and NOx is passed to a downstream CO boiler, preferably a low NOx CO boiler. In the CO boiler, as CO is oxidized to CO2, a reduced amount of gas phase reduced nitrogen species is oxidized to NOx, thereby providing an increase in the overall reduction of NOx emitted into the environment.Type: GrantFiled: September 29, 2005Date of Patent: March 15, 2011Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Publication number: 20110058999Abstract: According to one embodiment, described herein is an exhaust gas after-treatment system that is coupleable in exhaust gas stream receiving communication with an internal combustion engine. The exhaust gas after-treatment system includes a low temperature SCR catalyst configured to reduce NOx in exhaust gas having a temperature below a temperature threshold. The system also includes a normal-to-high temperature SCR catalyst configured to reduce NOx in exhaust gas having a temperature above the temperature threshold.Type: ApplicationFiled: September 10, 2010Publication date: March 10, 2011Applicant: CUMMINS IP, INCInventors: Padmanabha Reddy Ettireddy, Matthew Henrichsen
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Patent number: 7902112Abstract: A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula: MoaBibFecWdNieMgfAgBhCiDjEkFlGmOn(SiO2)p In the formula, A represents Ce and La, B represents Ca, Sr, Ba, Mn, Co, Cu, Zn and Cd, C represents Y, Pr, Nd, Sm, Al, Cr, Ga and In, D represents Ti, Zr, V, Nb, Ta, Ge, Sn, Pb and Sb, E represents Ru, Rh, Pd, Re, Os, Ir, Pt and Ag, F represents P, B and Te, G represents Li, Na, K, Rb, Cs and Tl, SiO2 represents silica, when a=10, b=0.1 to 1.5, c=0.5 to 3, d=0.1 to 1.5, e=0.1 to 8, f=0.1 to 5, g=0.1 to 1.5, h=0 to 8, i=0 to 3, j=0 to 3, k=0 to 3, l=0 to 3, m=0.01 to 2, p=10 to 200 and n is the atomic ratio of oxygen required to satisfy the valence of each of the elements excluding silicon, and (a×2+d×2)/(b×3+c×3+e×2+f×2+g×3+h×2+i×3+m×1)=0.90 to 1.00).Type: GrantFiled: October 23, 2007Date of Patent: March 8, 2011Assignee: Dia-Nitrix Co., Ltd.Inventors: Motoo Yanagita, Kenichi Miyaki, Hirokazu Watanabe
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Publication number: 20110034728Abstract: The present invention relates to a catalyst for reacting carbonitriles with water, wherein the catalyst comprises at least 60% by weight of manganese dioxide with an empirical formula MnOx where x is in the range from 1.7 to 2.0, and at least one plasticizer. The present invention further relates to a process for preparing the catalysts detailed above and to a process for preparing carboxamides by reacting carbonitriles with water in the presence of the present catalyst.Type: ApplicationFiled: February 26, 2009Publication date: February 10, 2011Applicant: Evonik Roehm GmbHInventors: Alexander May, Bernd Vogel, Hermann Siegert, Kurt-Alfred Gaudschun, Thomas Quandt
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Patent number: 7846867Abstract: A method for the production of a composition comprising a metal containing compound, a silica containing material, a promoter, and alumina is disclosed. The composition can then be utilized in a process for the removal of sulfur from a hydrocarbon stream.Type: GrantFiled: August 30, 2007Date of Patent: December 7, 2010Assignee: China Petroleum & Chemical CorporationInventors: Uday T. Turaga, Tushar V. Choudhary, Glenn W. Dodwell, Marvin M. Johnson, Deborah K. Just
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Publication number: 20100286420Abstract: The present invention has an object to provide the following method for producing fatty acid alkyl esters and/or glycerin and the following catalyst used in the production method. According to the production method, a fat or oil is reacted with an alcohol to give a fatty acid alkyl ester and/or glycerin suitably used in a food or fuel application, etc., with high efficiency, and complicated steps such as a step of recovering a catalyst can be simplified or omitted. According to the catalyst, an active metal component is not eluted even if the catalyst is used repeatedly or for a long period of time, and further, such a catalyst can maintain an excellent catalyst activity for a long time even in the presence of water and exhibit a high activity to both of transesterification of a glyceride contained in the fat or oil and esterification of free fatty acid.Type: ApplicationFiled: October 17, 2008Publication date: November 11, 2010Applicant: Nippon Shokubai Co., Ltd.Inventors: Takeo Akatsuka, Masanori Nonoguchi, Tomoharu Oku
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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: 20100261601Abstract: A modified catalyst support exhibiting attrition resistance and/or deaggregation resistance is provided. A catalyst composition including the modified catalyst support is also provided. A process to produce a modified catalyst support including treatment of a support slurry with a solution of monosilicic acid is provided. A process to use a catalyst including the modified catalyst support in a Fischer-Tropsch synthesis is provided.Type: ApplicationFiled: June 25, 2010Publication date: October 14, 2010Inventors: Heinz J. Robota, Shelly Goodman
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Patent number: 7811964Abstract: A process for preparing a naphtha reforming catalyst has been developed. The process involves the use of a chelating ligand such as ethylenediaminetetraacetic acid (EDTA). The aqueous solution of the chelating ligand and a tin compound is used to impregnate a support, e.g., alumina extrudates. A platinum-group metal is also an essential component of the catalyst. Rhenium may also be a component. A reforming process using the catalyst has enhanced yield, activity, and stability for conversion of naphtha into valuable gasoline and aromatic products.Type: GrantFiled: November 17, 2004Date of Patent: October 12, 2010Assignee: UOP LLCInventors: Leonid B. Galperin, Frank S. Modica, Thomas K. McBride, Jr.
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Publication number: 20100247407Abstract: Compositions useful for treating the exhaust gases of diesel engines contain zirconium oxide, silicon oxide and at least one oxide of at least one element M selected from among titanium, aluminum, tungsten, molybdenum, cerium, iron, tin, zinc, and manganese, in the following mass proportions of these different elements: silicon oxide: 5%-30%; M-element oxide: 1%-20%; the balance being zirconium oxide; such compositions also have an acidity, as measured by the methylbutynol test, of at least 90% and are prepared by placing a zirconium compound, a silicon compound, at least one M-element compound and a basic compound in a liquid medium, thereby generating a precipitate, maturing the precipitate in a liquid medium and separating and calcining the precipitate.Type: ApplicationFiled: October 19, 2007Publication date: September 30, 2010Applicants: RHODIA OPERATIONS, MAGNESIUM ELEKTRON LIMITEDInventors: Olivier Larcher, Emmanuel Rohart, Stephan Verdier, Heather Bradshaw, Clive Butler, Deborah Harris, Mairead Feeley, Guillaume Criniere
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Patent number: 7803972Abstract: The invention relates to a coated catalyst, especially for oxidation of methanol to formaldehyde, which, on an inert, preferably essentially nonporous, support body, has at least one coating which comprises, before the removal of the organic fractions of components b) and c): (a) oxides, or precursor compounds convertible to the corresponding oxides, of molybdenum and iron, where the molar ratio of Mo:Fe is between 1:1 and 5:1, and optionally further metallic components or metal oxide components or precursor compounds convertible to the corresponding oxides, (b) at least one organic binder, preferably an aqueous dispersion of copolymers, especially selected from vinyl acetate/vinyl laurate, vinyl acetate/ethylene, vinyl acetate/acrylate, vinyl acetate/maleate, styrene/acrylate or mixtures thereof, and (c) at least one further component selected from the group consisting of SiO2 sol or precursors thereof, Al2O3 sol or precursors thereof, ZrO2 sol or precursors thereof, TiO2 sol or precursors thereof, waterglasType: GrantFiled: November 23, 2006Date of Patent: September 28, 2010Assignee: Süd-Chemie AGInventors: Christian Gückel, Klaus Wanninger, Marvin Estenfelder, Claudia Fischer, Uwe Dürr
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Publication number: 20100240921Abstract: It is an object to provide a novel oxide catalyst for producing an unsaturated acid or unsaturated nitrile by which reaction results are good and a high yield can be stably maintained for a prolonged period of time, a process for producing the oxide catalyst, and a process for producing an unsaturated acid or unsaturated nitrile using the oxide catalyst. According to the present invention, there is provided an oxide catalyst represented by following compositional formula (1): Mo1VaSbbNbcMndWeYfOn??(1) wherein Y represents at least one element selected from alkaline earth metals and rare earth metals; a, b, c, d, e, f, and n each represents an atomic ratio based on one atom of Mo; 0.1?a?1, 0.01?b?1, 0.01?c?1, 0 d?0.1, 0?e?0.1, 0<(d+e)?0.1, 0?f?1; and n is a number determined by valencies of the constituent metals.Type: ApplicationFiled: March 15, 2007Publication date: September 23, 2010Inventors: Eri Tateno, Satoru Komada
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Publication number: 20100216633Abstract: A method is provided for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni,Ce2O3, La2O3, Pt?ZrO2, Rh and Re catalyst having dual functionalities to achieve both combustion and steam reforming.Type: ApplicationFiled: March 3, 2010Publication date: August 26, 2010Inventors: Tomoyuki Inui, Bashir Osama Dabbousi, Shakeel Ahmed, Fahad Ibrahim Al-Muhaish, Mohammed Abdul Bari Siddiqui
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Publication number: 20100197485Abstract: Catalysts and processes for forming catalysts for use in hydrogenating acetic acid to form ethanol. In one embodiment, the catalyst comprises a first metal, a silicaceous support, and at least one metasilicate support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel.Type: ApplicationFiled: February 2, 2010Publication date: August 5, 2010Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Victor J. Johnston, Laiyuan Chen, Barbara F. Kimmich, Josefina T. Chapman, James H. Zink, Heiko Weiner, John L. Potts, Radmila Jevtic
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Publication number: 20100197486Abstract: Catalysts and processes for making catalysts suitable for use in processes for hydrogenating acetic acid to form of ethyl acetate and mixtures of ethyl acetate and ethanol. In a first embodiment, the catalyst includes a high loading of nickel, palladium or platinum. In a second embodiment, the catalyst comprises a first metal selected from nickel and palladium and a second metal selected from tin and zinc. In a third embodiment, the catalyst comprises one or more metals on a support that has been modified with an acidic support modifier or a redox support modifier.Type: ApplicationFiled: February 2, 2010Publication date: August 5, 2010Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Victor J. Johnston, Laiyuan Chen, Barbara F. Kimmich, Josefina T. Chapman, James H. Zink, Heiko Weiner, John L. Potts, Radmila Jevtic
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Publication number: 20100191006Abstract: The invention is directed to a catalyst useful in the epoxidation of an olefin to an olefin oxide, the catalyst comprising a support having a multimodal pore size distribution comprising a first and a second distribution of pore sizes wherein each distribution of pore sizes possesses a different mean pore size and a different pore size of maximum concentration, the support having a catalytically effective amount of silver, a promoting amount of rhenium, and cesium in an amount up to, but not exceeding 700 ppm disposed thereon. The invention is also directed to methods for using the catalyst for the commercial production of an olefin oxide from olefin and oxygen-containing feed gases.Type: ApplicationFiled: January 27, 2009Publication date: July 29, 2010Applicant: SCIENTIFIC DESIGN COMPANY, INC.Inventor: Christian Guckel
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Publication number: 20100185010Abstract: The present invention relates to a porous catalyst support, consisting of a material comprising a natural sheet silicate, wherein ZrO2 is contained distributed in the material. The present invention also relates to a process for the preparation of the catalyst support according to the invention and to a shell catalyst containing the catalyst support according to the invention and also the use of the catalyst according to the invention in particular for the preparation of vinyl acetate monomer (VAM).Type: ApplicationFiled: May 30, 2008Publication date: July 22, 2010Inventors: Alfred Hagemeyer, Gerhard Mestl, Peter Scheck
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Publication number: 20100166633Abstract: A catalyst for decomposing volatile organic compounds is provided. The catalyst includes a mesoporous material and silver carried by the mesoporous material. The invention also provides a method for decomposing volatile organic compounds. The method includes providing a gas containing volatile organic compounds and contacting the gas containing volatile organic compounds and the disclosed catalyst to decompose and oxidize the gas containing volatile organic compounds into carbon dioxide and water.Type: ApplicationFiled: December 13, 2009Publication date: July 1, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Hsin-Hsien Wu, Kan-Sen Chou, Hsien-Chang Yang, Chin-Chao Huang, Shou-Nan Li
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Publication number: 20100167053Abstract: The present invention relates to a catalyst composition for preparing carbon nanotube and a process for preparing carbon nanotube using the same. More particularly, this invention relates to a process for preparing carbon nanotube by the chemical vapor deposition method through the decomposition of lower saturated or unsaturated hydrocarbons using a multi-component metal catalyst composition containing active metal catalyst from Co, V, Al and inactive porous support. Further, the present invention affords the carbon nanotube having 5˜30 nm of diameter and 100˜10,000 of aspect ratio in a high catalytic yield.Type: ApplicationFiled: May 26, 2009Publication date: July 1, 2010Inventors: Hyun-Kyung Sung, Wan Sung Lee, Namsun Choi, Dong Hwan Kim, Youngchan Jang
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Publication number: 20100152032Abstract: Aircraft catalysts, systems, and methods are disclosed. In one or more embodiments, the catalysts comprise a substrate, at least a first washcoat layer on the substrate comprising a refractory metal oxide support having a catalytic metal component dispersed on the refractory metal oxide support, and an overcoat washcoat layer on the first layer comprising a manganese component. Catalysts prepared in accordance with embodiments of the invention exhibit improved life when used in aircraft.Type: ApplicationFiled: December 16, 2008Publication date: June 17, 2010Applicant: BASF Catalysts LLCInventor: Michael P. Galligan
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Publication number: 20100111795Abstract: Mixed oxides catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds (VOC), in the decomposition of nitrogen protoxide to nitrogen and oxygen and the combustion of CO, H2 and CH4 off gases in fuel cells, comprising oxides of manganese, copper and La2O3 and/or Nd2O3, having a percentage composition by weight expressed as MnO, CuO, La2O3 and/or Nd2O3 respectively of 35-56%, 19-31% and 20-37%. The oxides are supported on inert porous inorganic oxides, preferably alumina.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Alberto CREMONA, Marvin ESTENFELDER, Edoardo VOGNA
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Publication number: 20100111796Abstract: Catalysts, methods of preparing catalyst, and methods for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes an upstream zone effective to catalyze the conversion of a mixture of NOx and NH3 to N2, and a downstream zone effective for the conversion of ammonia to N2 in the presence or absence of NOx. In an embodiment, a method for preparing a catalyst system includes: first coating one end of a substrate along at least 5% of its length with an undercoat washcoat layer containing a material composition effective to catalyze the removal of ammonia; second coating with an overcoat layer containing a material composition effective to catalyze the conversion of a mixture of NOx and NH3 to N2.Type: ApplicationFiled: November 3, 2008Publication date: May 6, 2010Applicant: BASF Catalysts LLCInventors: Matthew Tyler Caudle, Martin Dieterle, Scott E. Buzby
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Publication number: 20100099552Abstract: A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a surface stabilizer. The metal oxide nanoparticles are formed hydrothermally in the presence of the titanium dioxide nanoparticles. The nanocomposite particle is an effective catalyst support, particularly for DeNox catalyst applications.Type: ApplicationFiled: August 24, 2006Publication date: April 22, 2010Inventors: Guoyi Fu, Steven M. Augustine
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Patent number: 7700005Abstract: A method is provided for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni, Ce2O3, La2O3, Pt?ZrO2, Rh and Re catalyst having dual functionalities to achieve both combustion and steam reforming.Type: GrantFiled: December 26, 2006Date of Patent: April 20, 2010Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Tomoyuki Inui, Bashir Osama Dabbousi, Shakeel Ahmed, Fahad Ibrahim Al-Muhaish, Mohammed Abdul Bari Siddiqui
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Patent number: 7687428Abstract: A method of preparing carbon-loaded, gold-based nanoparticle catalysts useful as anode catalysts for the electrocatalytic methanol oxidation reaction (MOR) as well as the oxygen reduction reaction (ORR). AumPtnM100-m-n catalysts may be prepared by either a two-phase protocol or by a thermal decomposition/reduction protocol. The prepared nanoparticles having different bimetallic ratios are assembled on carbon black support materials and activated by thermal treatment. This approach provides good control of nanoparticle size, composition and/or surface properties. Electrocatalytic MOR activities of the prepared and activated AuPt nanoparticle provided in accordance with the methods of the invention are present in both acidic and alkaline electrolytes.Type: GrantFiled: March 29, 2006Date of Patent: March 30, 2010Assignee: The Research Foundation of the State University of New YorkInventors: Chuan-Jian Zhong, Jin Luo, Nancy N. Kariuki, Linyang Wang, Peter Njoki, Derrick Mott
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Patent number: 7655594Abstract: Briefly described, compositions, materials including the compositions, methods of using the compositions, and methods of degrading contaminants, are described herein. The composition can include a polyoxometalate/ cationic silica material. In addition, the compositions can be made of a polyoxometalate/cationic silica material, a copper (II) salt having a weakly bound anion, and a nitrate salts. Further, the compositions can be made of a polyoxometalate/cationic silica material, a copper (II) salt having a weakly bound anion, a compound selected from tetraethylammonium (TEA) nitrate, tetra-n-butylammonium (TBA) nitrate, and combinations thereof.Type: GrantFiled: May 5, 2003Date of Patent: February 2, 2010Assignee: Emory UniversityInventors: Neyla Okun, Craig L. Hill
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Publication number: 20100009843Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: ApplicationFiled: September 21, 2009Publication date: January 14, 2010Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Vithal Revankar, Jameel Ibrahim
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Publication number: 20100009844Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: ApplicationFiled: September 21, 2009Publication date: January 14, 2010Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Vithal Revankar, Jameel Ibrahim
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Publication number: 20090325790Abstract: A metal-substituted mesoporous oxide framework, such as Co-MCM-41, are disclosed which includes more than one ion species with different reduction kinetics. The reducibility correlates strongly with the pore radius of curvature, with the metal ions incorporated in smaller pores more resistant to complete reduction. The metal-ion substituted oxide framework improves catalytic processes by controlling the size of the catalytic particles forming in the pores. The metal-substituted mesoporous oxide framework can be employed in selective hydrogenation of organic chemicals, in ammonia synthesis, and in automotive catalytic exhaust systems.Type: ApplicationFiled: June 17, 2005Publication date: December 31, 2009Applicant: Yale UniversityInventors: Gary L. Haller, Sangyun Lim, Dragos Ciuparu, Yuan Chen, Yanhui Yang, Lisa Pfefferle
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Patent number: 7635461Abstract: Composite combustion catalyst particles are described and disclosed. A metal core of a combustible metal can be coated with a metal oxide coating. Additionally, a catalyst coating can at least partially surround the metal oxide coating to form a composite catalyst particle. The composite catalyst particles can be dispersed in a variety of fuels such as propulsion fuels and the like to form an enhanced fuel. During initial stages of combustion, the catalyst coating acts to increase combustion of the fuel. As combustion proceeds, the metal core heats sufficiently to disturb the metal oxide coating. The metal core then combusts in highly exothermic reactions with an oxidizer and the catalyst coating to provide improved energy densities to the enhanced fuel.Type: GrantFiled: June 7, 2004Date of Patent: December 22, 2009Assignee: University of Utah Research FoundationInventor: Scott L. Anderson
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Publication number: 20090286677Abstract: According to the present invention, an exhaust gas purifying catalyst is provided. The catalyst comprises a porous silica support comprising silica having a pore structure, and a perovskite-type composite metal oxide particle supported in the pore structure of the porous silica support. Further, the peak attributable to the space between silica primary particles is in the range of 3 to 100 nm in the pore distribution of the porous silica support.Type: ApplicationFiled: July 3, 2007Publication date: November 19, 2009Inventors: Shinichi Takeshima, Akio Koyama
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Publication number: 20090270648Abstract: A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula: MoaBibFecWdNieMgfAgBhCiDjEkFlGmOn(SiO2)p In the formula, A represents Ce and La, B represents Ca, Sr, Ba, Mn, Co, Cu, Zn and Cd, C represents Y, Pr, Nd, Sm, Al, Cr, Ga and In, D represents Ti, Zr, V, Nb, Ta, Ge, Sn, Pb and Sb, E represents Ru, Rh, Pd, Re, Os, Ir, Pt and Ag, F represents P, B and Te, G represents Li, Na, K, Rb, Cs and Tl, SiO2 represents silica, when a=10, b=0.1 to 1.5, c=0.5 to 3, d=0.1 to 1.5, e=0.1 to 8, f=0.1 to 5, g=0.1 to 1.5, h=0 to 8, i=0 to 3, j=0 to 3, k=0 to 3, l=0 to 3, m=0.01 to 2, p=10 to 200 and n is the atomic ratio of oxygen required to satisfy the valence of each of the elements excluding silicon, and (a×2+d×2)/(b×3+c×3+e×2+f×2+g×3+h×2+i×3+m×1)=0.90 to 1.00).Type: ApplicationFiled: October 23, 2007Publication date: October 29, 2009Applicant: DIA-NITRIX CO., LTD.Inventors: Motoo Yanagita, Kenichi Miyaki, Hirokazu Watanabe
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Publication number: 20090239739Abstract: A catalyst 1 has a heat-resistant support 2 selected from among Al2O3, SiO2, ZrO2, and TiO2, and a first metal 4 supported on an outer surface of the support 2, and included by an inclusion material 3 containing a component of the support 2.Type: ApplicationFiled: December 5, 2005Publication date: September 24, 2009Inventors: Hirofumi Yasuda, Katsuo Suga, Makoto Aoyama, Toshiharu Miyamura
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Patent number: 7592290Abstract: The invention relates to supported catalysts and a process for the production of these catalysts. These supported catalysts may be used in various reactions such as reforming reactions (e.g. steam methane reforming (SMR) reactions and autothermal reforming (ATR) reactions). In one aspect of the invention, the supported catalyst comprises a transition metal oxide; optionally a rare-earth metal oxide; and a transition metal aluminate.Type: GrantFiled: April 7, 2005Date of Patent: September 22, 2009Assignee: Sulzer Metco(Canada) Inc.Inventors: Syed Tajammul Hussain, Eugene Stelmack
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Publication number: 20090232728Abstract: A water gas shift catalyst for use at temperatures above about 450° C. up to about 900° C. or so comprising rhenium deposited on a support, preferably without a precious metal, wherein the support is prepared from a high surface area material, such as a mixed metal oxide, particularly a mixture of zirconia and ceria, to which may be added one or more of a high surface area transitional alumina, an alkali or alkaline earth metal dopant and/or an additional dopant selected from Ga, Nd, Pr, W, Ge, Fe, oxides thereof and mixtures thereof.Type: ApplicationFiled: March 14, 2008Publication date: September 17, 2009Applicant: Sud-Chemie Inc.Inventors: Jon P. Wagner, Michael W. Balakos, Chandra Ratnasamy
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Patent number: 7585812Abstract: A catalyst for use in the Fischer-Tropsch process, and a method to prepare the catalyst is disclosed. The catalyst of the present invention has a higher surface area, more uniform metal distribution, and smaller metal crystallite size than Fischer-Tropsch catalysts of the prior art.Type: GrantFiled: June 20, 2008Date of Patent: September 8, 2009Assignee: Sud-Chemie Inc.Inventors: X. D. Hu, Patrick J. Loi, Robert J. O'Brien
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Patent number: 7582202Abstract: A Composition comprising one or more metal hydroxy salts and a matrix, binder or carrier material, wherein the metal hydroxy salt is a compound comprising (a) as metal either (i) one or more divalent metals, at least one of them being selected from the group consisting of Ni, Co, Ca, Zn, Mg, Fe, and Mn, or (ii) one or more trivalent metal(s), (b) framework hydroxide, and (c) a replaceable anion. This composition has various catalytic applications.Type: GrantFiled: February 10, 2004Date of Patent: September 1, 2009Assignees: Akzo Nobel N.V., Albemarle Netherlands B.V.Inventors: William Jones, Paul O'Connor, Dennis Stamires
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Publication number: 20090209412Abstract: A method of preparing a steam reforming catalyst characterized by improved resistance to attrition loss when used for cracking, reforming, water gas shift and gasification reactions on feedstock in a fluidized bed reactor, comprising: fabricating the ceramic support particle, coating a ceramic support by adding an aqueous solution of a precursor salt of a metal selected from the group consisting of Ni, Pt, Pd, Ru, Rh, Cr, Co, Mn, Mg, K, La and Fe and mixtures thereof to the ceramic support and calcining the coated ceramic in air to convert the metal salts to metal oxides.Type: ApplicationFiled: October 7, 2005Publication date: August 20, 2009Applicant: ALLIANCE FOR SUSTAINABLE ENERGY, LLCInventors: Yves O. Parent, Kim Magrini, Steven M. Landin, Marcus A. Ritland
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Patent number: 7576028Abstract: A catalyst body comprising a carrier and a catalyst layer containing an alkali metal and/or an alkaline earth metal, loaded on the carrier, which catalyst further contains a substance capable of reacting with the alkali metal and/or the alkaline earth metal, dominating over the reaction between the main components of the carrier and the alkali metal and/or the alkaline earth metal. With this catalyst body, the deterioration of the carrier by the alkali metal and/or the alkaline earth metal is prevented; therefore, the catalyst body can be used over a long period of time.Type: GrantFiled: December 14, 2000Date of Patent: August 18, 2009Assignee: NGK Insulators, Ltd.Inventors: Naomi Noda, Junichi Suzuki, Takashi Harada