And Group Iii Metal Containing (i.e., Sc, Y, Al, Ga, In Or Tl) Patents (Class 502/332)
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Patent number: 7270738Abstract: This invention relates to silico-aluminum substrates, catalysts, and the hydrocracking and hydrotreatment processes that use them. The catalyst comprises at least one hydro-dehydrogenating element that is selected from the group that is formed by elements of group VIB and group VIII of the periodic table and a non-zeolitic silica-alumina-based substrate that contains an amount of more than 5% by weight and less than or equal to 95% by weight of silica (SiO2) and has the following characteristics: A mean pore diameter, measured by mercury porosimetry, encompassed between 20 and 140 ?, a total pore volume, measured by mercury porosimetry, encompassed between 0.1 ml/g and 0.6 ml/g, a total pore volume, measured by nitrogen porosimetry, encompassed between 0.1 ml/g and 0.6 ml/g, a BET specific surface area encompassed between 100 and 550 m2/g, a pore volume, measured by mercury porosimetry, encompassed in the pores with diameters of more than 140 ?, of less than 0.Type: GrantFiled: October 30, 2003Date of Patent: September 18, 2007Assignee: Institut Francais du PetroleInventors: Patrick Euzen, Carole Bobin, Magalie Roy-Auberger, Eric Benazzi, Patrick Bourges, Christophe Gueret
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Patent number: 7259286Abstract: An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation processes such as Fischer-Tropsch synthesis. These catalysts are suitable for use in fluidized-bed reactors, transport reactors and, especially, slurry bubble column reactors.Type: GrantFiled: August 28, 2001Date of Patent: August 21, 2007Assignees: Research Triangle Institute, The University of Pittsburgh-of the Commonwealth System of Higher EducationInventors: Kandaswamy Jothimurugesan, James G. Goodwin, Jr., Santosh K. Gangwal
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Patent number: 7253136Abstract: Supports for Fischer-Tropsch catalysts are formed by forming a particulate material from titania, alumina and optionally silica. A cobalt compound is incorporated into the particulate material which then is calcined to convert at least part of the alumina to cobalt aluminate.Type: GrantFiled: April 6, 2004Date of Patent: August 7, 2007Assignee: ExxonMobile Research and Engineering CompanyInventors: Charles H. Mauldin, Louis F. Burns
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Patent number: 7253137Abstract: A catalyst for preferentially reducing carbon monoxide in a hydrogen stream. The catalyst is formed from a chemical composition including a hexaaluminate, a metal hydroxide and a precious metal. The composition may be disposed on a support or may be extruded or cast into or onto a support. Incorporation of hexaaluminates allows inclusion of metal hydroxides that flux the active precious metal surface at higher temperatures than can aluminum oxide-based catalytic compositions, thereby enhancing resistance of the catalyst and monolithic support and increasing the durability and thermal range of the PROX catalyst. An additional advantage is that lesser amounts of precious metal oxides need be deposited onto the hexaaluminate, while retaining activity similar to aluminum oxide compositions.Type: GrantFiled: July 14, 2006Date of Patent: August 7, 2007Assignee: Delphi Technologies, Inc.Inventors: William J. LaBarge, Robert J. Svoboda, Joseph M. Keller
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Patent number: 7247598Abstract: This invention describes a nano-scale magnetic solid base catalyst and its preparation method. The catalyst involves a magnetic core coated with a solid base active layer. The synthesis of the nano-scale magnetic cores was first carried out using a rapid nucleation method in a colloid mill reactor using a liquid-liquid reaction. The nano-scale magnetic cores were mixed with a mixed salt solution. The LDH-containing magnetic cores were prepared in a colloid mill reactor by a rapid nucleation method, and subsequently calcined to give a solid base mixed oxides coated on magnetic cores. The characteristics of this catalyst are: nano-scale, high surface area and high activity and selectivity in base-catalyzed reactions. The highly dispersed catalyst can be easily reclaimed using an external magnetic field because of its magnetism. The catalyst can be utilized in base catalysis in organic reactions such as glycol ether synthesis, ester exchange, aldol condensation, etc.Type: GrantFiled: January 21, 2005Date of Patent: July 24, 2007Assignee: Beijing University of Chemical TechnologyInventors: Xue Duan, Hui Zhang, Rong Qi
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Patent number: 7238640Abstract: The present invention provides a catalyst for use in a NOx trap that has reduced NOx release during rich purges, increased NO conversion efficiency under stoichiometric conditions, and improved sulfur tolerance. The catalyst of this embodiment includes a precious metal, an oxygen storage component in contact with the precious metal, and a NOx storage material. The oxygen storage component in contact with the precious metal is present in an amount that provides sufficient oxygen storage capacity to reduce the NOx release from the NOx trap during rich purges to less than 20% of the NOx that is stored in the NOx trap across the operating temperature window of the NOx trap, increase the NOx conversion efficiency under stoichiometric conditions to a value greater than 70%, and increase the sulfur tolerance of the NOx trap.Type: GrantFiled: December 30, 2003Date of Patent: July 3, 2007Assignee: Ford Global Technologies, LLCInventors: Hungwen Jen, Gopichandra Surnilla, Christian Goralski, Jr., Joseph Theis, Justin Ura
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Patent number: 7235511Abstract: An exhaust gas purifying catalyst includes a carrier and a catalyst layer provided on the carrier. The catalyst layer includes active Al2O3 on which a noble metal is carried, an oxygen storage agent on which Rh is carried, Al2O3 coated with ZrO2 on which Rh is carried, and a binder material.Type: GrantFiled: September 3, 2004Date of Patent: June 26, 2007Assignees: Tokyo Roki Co., Ltd., Mazda Motor CorporationInventors: Tomohiko Kawamoto, Katsuyuki Fujita, Tadashi Tokuyama, Masahiko Shigetsu, Masaaki Akamine, Hisaya Kawabata, Hideharu Iwakuni, Akihide Takami
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Patent number: 7229948Abstract: The present invention involves an exhaust gas catalyst and method of manufacturing same. The invention provides for a cost-effective material which lowers the cold-start emissions from the exhaust of vehicles. The invention is a passive system which accelerates the light-off temperature of catalyst in a cost-effective fashion. The invention includes a method of manufacturing an exhaust gas catalyst capable of lowering cold-start emissions including the steps of providing an oxide mixture having praseodymium and cerium, doping about 0–10% weight zirconium and about 0–10% weight yttrium to the oxide mixture, adding about 0–2% weight metal including palladium, platinum, or rhodium to the oxide mixture, mixing gamma aluminum to the oxide mixture for washcoating and washcoating the oxide mixture onto a monolithic substrate.Type: GrantFiled: January 24, 2005Date of Patent: June 12, 2007Assignee: Ford Global Technologies, LLCInventors: Albert Nazipovich Chigapov, George Wade Graham, Haren Sakaral Gandhi, Hung-Wen Jen
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Patent number: 7229947Abstract: An NOx sorption-and-reduction type catalyst is made which includes a hydrogen generating catalyst in which Rh is loaded on a support including an Al2O3—ZrO2 composite oxide. Since the Al2O3—ZrO2 composite oxide exhibits a basicity lower than ZrO2, SOx are less likely to approach so that it is possible to suppress the sulfur poisoning of Rh. Moreover, the Al2O3—ZrO2 composite oxide exhibits higher heat resistance than ZrO2, and it has a function of improving the steam reforming reaction activity of Rh in the same manner as ZrO2. Therefore, the post-durability NOx purifying ability of the NOx sorption-and-reduction type catalyst is improved.Type: GrantFiled: February 4, 2002Date of Patent: June 12, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Naoyuki Hara, Ichiro Hachisuka
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Patent number: 7220699Abstract: A method and device for loading a catalyst into a chamber. The catalyst loading is well suited for production of hydrogen producing microreactors. The catalyst is coated onto a strip which is mountable within the chamber.Type: GrantFiled: March 31, 2003Date of Patent: May 22, 2007Assignee: Intelligent Energy, Inc.Inventor: Anand Chellappa
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Patent number: 7220700Abstract: A selective hydrogenation catalyst composition comprises a support; a first metal component comprising rhodium; and a second metal component comprising a metal other than rhodium and selected from Groups 1 to 15 of the Periodic Table of Elements, wherein said first and second components are predominantly contained in an outer surface layer of the support having a depth of not more than 1000 microns.Type: GrantFiled: November 24, 2003Date of Patent: May 22, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: David M. Lowe, Michel Molinier, John D. Y. Ou, Michael A. Risch, Anthony F. Volpe, Jr., Jeffrey C. Yoder, Valery Sokolovskii
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Patent number: 7220702Abstract: A noble metal and an NOx sorption member are loaded on a support which includes composite particles having a structure including a core portion in which ZrO2 is a major component and a superficial portion formed on a surface of the core portion and including an oxide, whose basicity is lower than ZrO2, more than the core portion. The composite particles exhibit a high basicity at the inside and a low basicity on the surface by Al2O3 or TiO2 which exists more in the surface. Accordingly, the sulfur-poisoning resistance is improved, and, at the same time, the post-durability NOx purifying ability is improved.Type: GrantFiled: February 4, 2002Date of Patent: May 22, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Naoyuki Hara, Ichiro Hachisuka
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Patent number: 7205257Abstract: To provide an exhaust gas purifying catalyst which can maintain the catalytic activity at a high level over a long time and can achieve satisfactory emission control performance, an exhaust gas purifying catalyst is prepared so as to contain a noble metal, a perovskite-type composite oxide represented by the following general formula (3), and theta-alumina and/or alpha-alumina: AB1-mNmO3??(3) wherein A represents at least one element selected from rare-earth elements and alkaline earth metals; B represents at least one element selected from Al and transition elements excluding rare-earth elements and noble metals; N represents a noble metal; and m represents an atomic ratio of N satisfying the following relation: 0<m<0.5.Type: GrantFiled: July 3, 2003Date of Patent: April 17, 2007Assignees: Daihatsu Motor Co., Ltd., Cataler CorporationInventors: Hirohisa Tanaka, Isao Tan, Mari Uenishi, Nobuhiko Kajita, Masashi Taniguchi, Yasunori Sato, Keiichi Narita, Noboru Sato
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Patent number: 7196034Abstract: The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of 45 to 85 wt. %, a silicon content, calculated as SiO2, of 14 to 45 wt. %, an aluminium content, calculated as Al2O3, of 1 to 15 wt. % an iron content, calculated as Fe, 0.25 to 4 wt. %, all percentages having been calculated on the basis of the reduced catalyst, and which catalyst has a volume of pores between 2 and 60 nm, as defined herein, of at least 0.35 ml/g of catalyst.Type: GrantFiled: November 17, 2000Date of Patent: March 27, 2007Assignee: Engelhard CorporationInventor: Lucas Laurentius Kramer
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Patent number: 7186668Abstract: A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides methods of making textured catalysts and methods of making chemical products using a textured catalyst.Type: GrantFiled: September 25, 2003Date of Patent: March 6, 2007Assignee: Battele Memorial InstituteInventors: Todd Werpy, John G. Frye, Jr., Yong Wang, Alan H. Zacher
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Patent number: 7179442Abstract: A method and catalysts and fuel processing apparatus for producing a hydrogen-rich gas, such as a hydrogen-rich syngas are disclosed. According to the method a CO-containing gas, such as a syngas, contacts a water gas shift (“WGS”) catalyst, in the presence of water, preferably at a temperature of less than about 450° C. to produce a hydrogen-rich gas, such as a hydrogen-rich syngas. Also disclosed is a water gas shift catalyst formulated from: a) at least one of Rh, Ni, Pt, their oxides and mixtures thereof, b) at least one of Cu, Ag, Au, their oxides and mixtures thereof; and c) at least one of K, Cs, Sc, Y, Ti, Zr, V, Mo, Re, Fe, Ru, Co, Ir, Pd, Cd, In, Ge, Sn, Pb, Sb, Te, La, Ce, Pr, Nd, Sm, Eu, their oxides and mixtures thereof. Another disclosed catalyst formulation comprises Rh, its oxides or mixtures thereof, Pt, its oxides or mixtures thereof and Ag, its oxides or mixtures thereof.Type: GrantFiled: December 18, 2003Date of Patent: February 20, 2007Assignees: Honda Giken Kogyo Kabushiki Kaisha, Symyx Technologies, Inc.Inventors: Alfred Hagemeyer, Raymond E. Carhart, Karin Yaccato, Peter Strasser, Michael Herrmann, Robert K. Grasselli, Christopher James Brooks, Cory Bernard Phillips
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Patent number: 7176160Abstract: A method is provided for forming a highly active Fischer-Tropsch catalyst using boehmite having a particular crystallite size. In this method, a support material comprising boehmite is contacted with a catalytic metal-containing compound to form a catalyst precursor. The boehmite is selected to have an average crystallite size in the range of from about 6 nanometers (nm) to about 30 nm. An alternate embodiment uses a mixture of boehmites with various average crystallite sizes in the range of from about 4 nm to about 30 nm, differing by at least by 1 nm. Subsequently, the catalyst precursor is calcined to convert the boehmite to a stabilized aluminum oxide structure, thereby forming a catalyst support having a good attrition resistance and a relatively high hydrothermal stability.Type: GrantFiled: October 16, 2003Date of Patent: February 13, 2007Assignee: ConocoPhillips CompanyInventors: Rafael L. Espinoza, Kandaswamy Jothimurugesan, Yaming Jin
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Patent number: 7176159Abstract: A catalyst and sorbent is disclosed which comprises pellets with an absorbent core and a protective shell with a catalyst in the shell. Such material is especially well suited for steam reforming of hydrocarbons to produce hydrogen since a reforming catalyst can be incorporated in the shell and a sorbent for the by-product carbon dioxide can be used for the core. It is also well suited for producing hydrogen from carbon monoxide by means of the water gas shift reaction. The shell can be made sufficiently strong and durable for moving bed applications as well as fixed bed applications.Type: GrantFiled: August 14, 2002Date of Patent: February 13, 2007Assignee: Iowa State University Research Foundation, Inc.Inventors: Thomas D. Wheelock, Brent H. Shanks
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Patent number: 7172990Abstract: The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides and at least one metal compound which is dropped into a metal salt solution.Type: GrantFiled: January 17, 2003Date of Patent: February 6, 2007Assignee: Shell Internationale Research Maatschappiji, B.V.Inventors: Reinhard Geyer, Rainer Schödel, Peter Birke, Jürgen Hunold
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Patent number: 7169736Abstract: A catalyst is described for hydrogenation of unsaturated hydrocarbons, containing catalytically active amounts of Pd and optionally Ag in a support. The catalyst is characterized by the fact that the support represents a shaped body with a trilobal cross section, the lobes being provided with continuous openings. The catalysts can be produced according to a method, in which the support is impregnated with a solution of salts of Pd and optionally Ag. These salts are reduced by means of a reducing agent, whereupon the support so impregnated is washed, dried and calcined and, if reduction is not complete, the still present oxides of Pd and Ag are reduced to the corresponding metals in a hydrogen-containing atmosphere.Type: GrantFiled: February 8, 2001Date of Patent: January 30, 2007Assignee: Süd-Chemie AGInventors: Mauro Petrolli, Ingrid Geyer, Francesco Casagrande
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Patent number: 7169735Abstract: The object of the present invention is to provide a catalyst that is highly active and capable of maintaining its activity for a long period of time even in a high-temperature environment. The present invention is a catalyst including: a porous carrier which is comprised of one kind of or two or more kinds of metal oxides; and catalyst particles which are comprised of precious metals or precious metal oxides and supported on the above porous carrier, characterized in that the catalyst particles include: clustered particles formed by the aggregation of first precious metal atoms; and second precious metal ions bound to the above clustered particles. Preferably, the first precious metal and the second precious metal are different metal species which are selected from the group consisting of platinum, palladium, rhodium, ruthenium, silver, gold, iridium and osmium.Type: GrantFiled: May 3, 2005Date of Patent: January 30, 2007Assignee: Tanaka Kikinzoku Kogyo K.K.Inventor: Takeyuki Sagae
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Patent number: 7166557Abstract: Process for preparing a catalyst active for the fluid bed acetoxylation of ethylene to produce vinyl acetate.Type: GrantFiled: December 18, 2002Date of Patent: January 23, 2007Assignees: BP Chemicals Limited, Johnson Matthey PLCInventors: Michael James Baker, Peter Johnston, Dennis Murphy
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Patent number: 7166268Abstract: The present invention provides a catalyst suitably employed in a variety of hydrocarbon reforming processes and a hydrocarbon reforming process including employing the catalyst in production of hydrogen or synthesis gas. The hydrocarbon reforming catalyst of the present invention contains an alumina carrier containing cerium oxide and, carried on the carrier, component (a), component (b), and optional component (c), the component (a) being at least one platinum group element selected from among ruthenium, platinum, rhodium, palladium, and iridium; the component (b) being cobalt and/or nickel, the component (c) being an alkaline earth metal. When steam reforming, autothermal reforming, partial-oxidation reforming, or carbon dioxide reforming of hydrocarbons is performed through employment of the catalyst, hydrogen or synthesis gas can be produced.Type: GrantFiled: November 5, 2001Date of Patent: January 23, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventor: Tetsuya Fukunaga
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Patent number: 7163963Abstract: This invention is generally related to the field of Fischer-Tropsch catalysts. In particular, the present invention is related to a Fischer-Tropsch catalyst and method of making same. More particularly, the present invention discloses a catalyst comprising a support and at least one catalytically active metal wherein the support comprises a transition alumina including theta-alumina, delta-alumina, or combinations thereof, and a surface coverage comprising at least one rare-earth oxide.Type: GrantFiled: September 8, 2003Date of Patent: January 16, 2007Assignee: ConocoPhillips CompanyInventor: Dan Fraenkel
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Patent number: 7160839Abstract: A catalyst for purifying NOx is provided which efficiently decomposes and purify the NOx in an exhaust gas in an oxygen-excess atmosphere, excels in resistance to heat and in durability in a high temperature range under a high-temperature oxidizing atmosphere and in the presence of moisture and SOx, and manifests the catalytic activity over a wide range of temperature. It is a catalyst for purifying nitrogen oxides formed by coating (A) a catalytically active component comprising (A-a) iridium and (A-b) at least one element selected from the group consisting of the elements of Group IIIA and Group IVA in the Periodic Table of the Elements with (B) a refractory inorganic compound.Type: GrantFiled: January 10, 2002Date of Patent: January 9, 2007Assignees: ICT Co., Ltd., International Catalyst Technology, Inc.Inventors: Hideki Goto, Shigeyoshi Taniguchi, Makoto Horiuchi
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Patent number: 7157404Abstract: The present invention relates to a catalyst for preparing hydrocarbons of carbon dioxide and more particularly, the Fe—Cu—K/?—Al2O3 catalyst prepared by impregnation which enables producing hydrocarbons in high yield for more than 2000 hours due to its excellent activity and stability.Type: GrantFiled: July 14, 2000Date of Patent: January 2, 2007Assignee: Korea Research Institute of Chemical TechnologyInventors: Ki-Won Jun, Jin-Soo Hwang, Kyu-Wan Lee, Myoung-Jae Choi
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Patent number: 7157401Abstract: A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals and lanthanide metals compose the compound from which the interstitial metal hydride is formed. The catalyst's capabilities can be further enhanced using radio frequency (RF) or microwave energy.Type: GrantFiled: October 17, 2002Date of Patent: January 2, 2007Assignee: Carnegie Mellon UniversityInventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang
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Patent number: 7153807Abstract: Catalysts have been discovered that are useful in hydrogenation reactions, and particularly for the selective hydrogenation of acetylene and/or methyl acetylene (MA) and/or propadiene (PD) in light olefin-rich feedstreams. These catalysts can selectively hydrogenate acetylene with less selectivity to making oligomers (green oil) as compared with existing commercial catalysts, particularly palladium catalysts. These catalysts are non-palladium catalysts, and have three different constituents that are metal or metal-based components. The metal of the first constituent may be nickel or platinum, the metal of the second constituent may be from Groups 1–10, and the metal of the third constituent may be from Groups 11–12, where the Groups are of the Periodic Table of Elements (new IUPAC notation).Type: GrantFiled: March 4, 2003Date of Patent: December 26, 2006Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Michel Molinier, John Di-Yi Ou, Michael A. Risch
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Patent number: 7150866Abstract: The invention relates to a catalyst and a process for the autothermal, catalytic steam reforming of hydrocarbons using the catalyst. The catalyst has a multilayer structure and comprises a lower catalyst layer located directly on a support body and an upper catalyst layer located on the lower catalyst layer, with the lower catalyst layer preferentially catalysing the partial oxidation and the upper catalyst layer preferentially catalysing steam reforming. In a further embodiment, a three-layer catalyst having a further catalyst layer for the carbon monoxide conversion (water gas shift reaction) is described. Each catalyst layer comprises at least one platinum group metal on an oxidic support material. The steam reforming process is carried out in an adiabatic process by passing a feed mixture of hydrocarbons, oxygen and water or water vapour which has been heated to a preheating temperature over the multilayer catalyst.Type: GrantFiled: August 20, 2003Date of Patent: December 19, 2006Assignee: Umicore AG & Co. KGInventors: Stefan Wieland, Frank Baumann
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Patent number: 7150861Abstract: A catalyst for purification of CO-containing exhaust gases, includes a metal oxide as a support and a catalytic component A being supported thereon as a catalytic component and including a specific noble metal element; wherein the support includes a titanium-containing oxide as the metal oxide and is a monolithically molded type porous honeycomb support obtained by a process including the steps of extrusion-molding and then calcining materials of the support; and wherein the catalytic component A is distributed with a quantitatively great inclination toward surfaces of the catalyst. A process for purification of exhaust gases to remove CO therefrom, includes the step of bringing the exhaust gases into contact with the catalyst.Type: GrantFiled: September 20, 2002Date of Patent: December 19, 2006Assignee: Nippon Shokubai Co., Ltd.Inventors: Atsushi Morita, Junji Okamura, Shinyuki Masaki, Noboru Sugishima, Motonobu Kobayashi
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Patent number: 7138358Abstract: A catalyzed diesel particulate matter exhaust filter with improved diesel particulate matter oxidation activity and thermal stability including a porous filter substrate for filtering the diesel particulate matter washcoated with high surface area support alumina, titania, silica and zirconia promoted with one of ceria, lanthanum oxide, tungsten oxide, molybdem oxide, tin oxide for catalytic materials which includes an alkaline earth metal vanadate, and a precious metalType: GrantFiled: August 29, 2003Date of Patent: November 21, 2006Assignee: Sud-Chemie Inc.Inventors: Yinyan Huang, Zhongyuan Dang, Amiram Bar-llan
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Patent number: 7109145Abstract: The invention provides a noble metal-containing supported catalyst which contains one of the noble metals from the group Au, Ag, Pt, Pd, Rh, Ru, Ir, Os or alloys of one or more of these noble metals in the form of noble metal particles on a powdered support material. The particles deposited on the support material have a degree of crystallinity, determined by X-ray diffraction, of more than 2 and an average particle size between 2 and 10 nm. The high crystallinity and the small particle size of the noble metal particles lead to high catalytic activity for the catalyst. It is particularly suitable for use in fuel cells and for the treatment of exhaust gases from internal combustion engines.Type: GrantFiled: December 10, 2004Date of Patent: September 19, 2006Assignee: Umicore AG & Co. KGInventors: Karsten Ruth, Peter Biberbach, Karl-Anton Starz
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Patent number: 7105468Abstract: A catalyst for preferentially reducing carbon monoxide in a hydrogen stream. The catalyst is formed from a chemical composition including a hexaaluminate, a metal hydroxide and a precious metal. The composition may be disposed on a support or may be extruded or cast into or onto a support. Incorporation of hexaaluminates allows inclusion of metal hydroxides that flux the active precious metal surface at higher temperatures than can aluminum oxide-based catalytic compositions, thereby enhancing resistance of the catalyst and monolithic support and increasing the durability and thermal range of the PROX catalyst. An additional advantage is that lesser amounts of precious metal oxides need be deposited onto the hexaaluminate, while retaining activity similar to aluminum oxide compositions.Type: GrantFiled: December 5, 2002Date of Patent: September 12, 2006Assignee: Delphi Technologies, Inc.Inventors: William J. LaBarge, Robert J. Svoboda, Joseph M. Keller
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Patent number: 7094730Abstract: Gas treatment devices and vehicle exhaust systems are disclosed herein. In one embodiment, the vehicle exhaust system, comprises: an engine, a gas treatment device disposed downstream from the engine, the gas treatment device comprising a housing, a substrate disposed within the housing, the substrate comprising a catalyst and a hexaaluminate comprising a catalyst stabilizer disposed in a hexaaluminate crystal structure.Type: GrantFiled: October 31, 2002Date of Patent: August 22, 2006Assignee: Delphi Technologies, Inc.Inventors: William J. LaBarge, Joachim Kupe, Conrad Anderson
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Patent number: 7081433Abstract: Gold-titania (Au—TiO2) composite aerogels and ambigles were synthesized, characterized, and tested as ambient temperature catalysts for carbon monoxide. Adding alkanethiolate-monolayers-protected gold clusters (with ˜2 nm Au cores) directly to titania sol before gelation yields uniformly dispersed guests in the composite aerogel. The Au guests aggregate to 5 to 10 nm upon calcination to remove alkanethiolate and crystallize amorphous titania to anatase. The resulting composite aerogel exhibits high catalytic activity toward CO oxidation at room temperature at Au particle sizes that are essentially inactive in prior Au—TiO2 catalysts. Transmission electron microscopy illustrates the three-dimensional nature of the catalytic nanoarchitecture in which gold guests contact multiple anatase nanocrystallites.Type: GrantFiled: March 12, 2003Date of Patent: July 25, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Debra Rolison, Jeremy Pietron, Rhonda Stroud
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Patent number: 7081430Abstract: An exhaust gas purifying catalyst that provides the excellent low-temperature activity and also develops the good catalytic activity of rhodium to produce a good purifying performance economically. The exhaust gas purifying catalyst comprises an alumina on which rhodium and platinum are previously supported; a zirconium complex oxide on which rhodium and platinum are previously supported; and a cerium complex oxide on which platinum is previously supported.Type: GrantFiled: June 18, 2002Date of Patent: July 25, 2006Assignee: Daihatsu Motor Co., Ltd.Inventors: Mari Uenishi, Isao Tan, Hirohisa Tanaka
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Patent number: 7081431Abstract: An exhaust gas purifying catalyst capable of exerting excellent NOx purifying capability even at high exhaust gas temperatures, exceeding 500° C., is provided. The catalyst is an absorption reduction-type NOx purifying catalyst comprising an NOx absorbent obtained by loading at least one alkali metal or alkaline earth metal on a crystalline ZrO2 composite oxide having added thereto at least one trivalent rare earth metal or divalent alkaline earth metal. Preferably, aluminum is further supported on the ZrO2 composite oxide. The NOx absorbent is considered to have an NOx absorption mechanism that an electron released from the alkali metal or the like enters into an oxygen vacancy part of the crystalline ZrO2 and this oxygen vacancy part functions as a strong base site for donating an electron to an electrophilic component such as NOx.Type: GrantFiled: September 3, 2001Date of Patent: July 25, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Yamashita, Shinichi Takeshima, Toshiaki Tanaka
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Patent number: 7067455Abstract: Catalysts and methods useful for the production of olefins from alkanes via oxidative dehydrogenation (ODH) comprise at least one base metal and copper with an optional promoter. The catalyst preferably comprises a base metal and a copper-modified Groups 8, 9, or 10 metal on a support comprising alumina, zirconia, or mixtures thereof. Copper is preferably present in an amount of from about 0.1 to about 1.0 percent by weight of the total catalyst weight. The base metal preferably comprises manganese, chromium, gold, their corresponding oxides, or combinations thereof. The optional promoter preferably comprises platinum, palladium, iridium, rhodium, ruthenium, or any combinations thereof.Type: GrantFiled: November 21, 2003Date of Patent: June 27, 2006Assignee: ConocoPhillips CompanyInventors: Zhen Chen, Steven R. McDonald, Shang Y. Chen, Stephan Basso, Charles R. Rapier, Angela R. Bailey-Rivers, Cemal Ercan
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Patent number: 7067453Abstract: The subject invention is a catalyst consisting of an oxide or mixed oxide support and bimetallic catalytically active compounds. The supporting oxide can be a single oxide, such as Al2O3; it also can be a mixture of oxides, such as Y2O3 stabilized ZrO2 (YSZ), Al2O3 with CeO2, Al2O3 with YSZ and others. The bimetallic compounds, acting as active components, are selected from platinum, and ruthenium, prepared in an appropriate ratio. The catalyst is used in the steam reforming of hydrocarbons to produce hydrogen for applications such as polymer electrolyte membrane fuel cells.Type: GrantFiled: July 15, 2002Date of Patent: June 27, 2006Assignee: InnovaTek, Inc.Inventors: Qimin Ming, Todd Healey, Patricia Marie Irving
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Patent number: 7060651Abstract: A silica-rich support and a catalyst containing the silica-rich support and a catalytic component. The support has a specific structure characterized by a set of claimed physicochemical properties: in the 29Si MAS NMR spectrum the state of silicon is characterized by the presence of lines with chemical shifts ?100±3 ppm (line Q3) and ?110±3 ppm (line Q4), with the ratio of the integral intensities of the lines Q3/Q4 of from 0.7 to 1.2 (FIG. 1); in the IR spectrum there is an absorption band of hydroxyl groups with the wave number 3620–3650 cm?1 and half-width 65–75 cm?1 (FIG. 2); the carrier has a specific surface area, as measured by the BET techniques from the thermal desorption of argon, SAR=0.5–30 m2/g and the surface, as measured by alkali titration techniques, SNa=10–250 m2/g, with SNa/SAr=5–30.Type: GrantFiled: December 4, 2000Date of Patent: June 13, 2006Assignee: Zakrytoe Aktsionernoe Obschestvo “Kholdingovaya Katalizatornaya Kompania”Inventors: Viktor Vladimirovich Barelko, Bair Sydypovich Balzhinimaev, Sergei Petrovich Kildyashev, Mikhail Grigorievich Makarenko, Anatoly Nikolaevich Parfenov, Ljudmila Grigorievna Simonova, Alexandr Viktorovich Toktarev
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Patent number: 7056859Abstract: A catalyst for purifying exhaust gases which can suppress an active ingredient, such as an alkali metal, which reacts with a substrate from moving to the substrate, thereby preventing a decrease in strength such as thermal shock resistance of the substrate. In production, first, a first oxide layer composed mainly of an oxide which has a high reactability with the active ingredient is formed on the substrate. Next, a second oxide layer composed mainly of an oxide which has a low reactability with the active ingredient is formed on the first oxide layer. Then, a catalyst layer loaded at least with a noble metal and the active ingredient is formed on the second oxide layer. This second oxide layer suppresses transfer of the active ingredient and some active ingredient which has passed through the second oxide layer is caught by the first oxide layer owing to its reaction.Type: GrantFiled: March 18, 2003Date of Patent: June 6, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventor: Ichiro Hachisuka
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Patent number: 7056857Abstract: A method for making a catalyst is provided that features loading a catalytic metal to a support using at least two different precursor compounds of that said metal; and loading the promoter to the support in an amount effective so as to achieve similar promotion as for a comparable catalyst comprising a greater amount of the promoter using only one precursor compound, where the catalytic metal is selected from among Group 8 metals, 9 metal, Group 10 metals, and combinations thereof. The promoter is preferably boron, silver, a noble metal, or combination thereof. Also provided are catalysts made by the method and Fischer-Tropsch processes that include contacting synthesis gas with a catalyst made by the method.Type: GrantFiled: October 14, 2004Date of Patent: June 6, 2006Assignee: ConocoPhillips CompanyInventors: Nithya Srinivasan, Rafael L. Espinoza, Kevin L. Coy, Kandaswamy Jothimurugesan
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Patent number: 7041866Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component comprising at least one Group III A (IUPAC 13) component, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: October 8, 2002Date of Patent: May 9, 2006Assignee: UOP LLCInventor: Ralph D. Gillespie
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Patent number: 7041622Abstract: Disclosed is a catalyst, an emission control device, and a method for treating exhaust gas. In one embodiment, the catalyst comprises: a catalytic metal component and a macro-pore component. The macro-pore component comprises an oxygen storage component and an aluminum oxide component, wherein the oxygen storage component, the aluminum oxide component, or both comprise pores, and wherein greater than or equal to about 40% of a macro-pore component pore volume, based on a total macro-pore component pore volume, is associated with pores greater than 120 ?in diameter. In another embodiment, the method for treating an exhaust gas comprises: contacting the exhaust gas with the catalyst at a temperature and for a period of time sufficient to reduce the concentration of a material in the exhaust gas.Type: GrantFiled: February 5, 2003Date of Patent: May 9, 2006Assignee: Delphi Technologies, Inc.Inventor: John G. Nunan
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Patent number: 7037878Abstract: An aircraft environmental control system includes a catalytic converter having ozone-destroying capability. A surface of the catalytic converter is anodized to form an anodized layer, and the metal oxide layer is washcoated to form a washcoat layer. An ozone destroying catalyst is impregnated in the anodized and washcoat layers. The catalyst may include one or more metals. For example, a bimetallic catalyst may include a precious metal and a transition metal.Type: GrantFiled: May 7, 2003Date of Patent: May 2, 2006Assignee: Honeywell International Inc.Inventors: Di-Jia Liu, Daniel R. Winstead, Peter M. Michalakos
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Patent number: 7033566Abstract: A photocatalyst including a metal oxide semiconductor represented by the formula: In1?xMxAO4 wherein M represents a transition metal element, A represents an element belonging to the Group 5a of the Periodic Table and x is a number greater than 0 but smaller than 1.Type: GrantFiled: July 9, 2002Date of Patent: April 25, 2006Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Hironori Arakawa, Zhigang Zou, Kazuhiro Sayama
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Patent number: 7030052Abstract: The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.Type: GrantFiled: June 2, 2003Date of Patent: April 18, 2006Assignee: Degussa AGInventors: Guido Stochniol, Bernd Jaeger, Thomas Haas, Norbert Finke, Werner Burkhardt, Juergen Grunert
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Patent number: 7026269Abstract: The catalyst can be prepared by reduction of a precursor of a hydrogenation-active metal, which may be present on an oxidic support, by reaction with at least one compound of the formula (I) HnM(OR)3?n??(I) where M is Ga or Al, R is CR?3 or SiR?3 where R? is C1-20-alkyl, and n is 1 or 2, or dimers or oligomers thereof, wherein the crystallite size of the hydrogenation-active metal in the finished catalyst is from 5 to 30, preferably 5 to 15 nm.Type: GrantFiled: July 4, 2001Date of Patent: April 11, 2006Assignee: BASF AktiengesellschaftInventors: Dominic Vanoppen, Michael Veith, Kroum Valtchev
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Patent number: 7015175Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum and a refractory-oxide binder having at least one platinum-group metal component dispersed thereon.Type: GrantFiled: June 21, 2004Date of Patent: March 21, 2006Assignee: UOP LLCInventors: James G. Vassilakis, Richard R. Rosin, Steven A. Bradley, Ralph D. Gillespie, Michelle J. Cohn, Feng Xu
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Patent number: 7009085Abstract: A catalyst composition comprising an inorganic support material, a palladium component, a silver component, and a promoter component having the formula XYFn, wherein X is an alkaline metal, Y is an element selected from the group consisting of antimony, phosphorus, boron, aluminum, gallium, indium, thallium, and arsenic, and n is an integer which makes YFn a monovalent anion. The above-described catalyst is employed as a catalyst in the selective hydrogenation of acetylene. The above-described catalyst is made by incorporating a palladium component, a silver component, and a promoter component into an inorganic support material.Type: GrantFiled: July 1, 2002Date of Patent: March 7, 2006Assignee: Phillips Petroleum CompanyInventor: Tin-Tack Peter Cheung