Abstract: The invention relates to a device for the qualitative and/or quantitative determination of at least one component of a chemically reducible gas mixture, an exhaust gas catalytic converter utilizing such a device, a vehicle including such a catalytic converter, a process for preparing such a device, a process for monitoring the NOx emissions of a vehicle, and the use of such a device.
Type:
Grant
Filed:
July 14, 2009
Date of Patent:
September 3, 2013
Assignee:
Deutsches Zentrum Fuer Luft-und Raumfahrt e.V.
Inventors:
Bilge Saruhan-Brings, Mathias Christian Stranzenbach, Christoph Leyens
Abstract: The present invention relates to a process for the formation of alcohols from alkanoic acids, the steps of the process comprising: contacting a feed stream containing the alkanoic acid and hydrogen at an elevated temperature with a hydrogenating catalyst comprising from 3 to 25 wt. % of active metals on a support, wherein the active metals comprise cobalt and tin.
Type:
Application
Filed:
February 29, 2012
Publication date:
August 29, 2013
Applicant:
CELANESE INTERNATIONAL CORPORATION
Inventors:
Heiko Weiner, Zhenhua Zhou, Radmila Jevtic, Victor J. Johnston
Abstract: Processes are disclosed for the conversion of adipic acid to caprolactam employing a chemocatalytic reaction in which an adipic acid substrate is reacted with ammonia and hydrogen, in the presence of particular heterogeneous catalysts and employing unique solvents. The present invention also enables the conversion of other adipic acid substrates, such as mono-esters of adipic acid, di-esters of adipic acid, mono-amides of adipic acid, di-amides of adipic acid, and salts thereof to caprolactam. Solvents useful in the process that do not react with ammonia are also disclosed. Catalyst supports are disclosed which catalyze the reaction of the substrate with ammonia in the absence of added metal. Metals on the catalyst supports comprise ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and/or platinum (Pt). Heterogeneous catalysts comprising ruthenium (Ru) and rhenium (Re) on titania and/or zirconia supports are also disclosed.
Abstract: A process for producing a catalyst that results in improved yields and productivity to ethanol. The process involves the steps of preparing a solution comprising one or more precursors to an active metal and impregnating a first portion of the solution on a support to form a first impregnated support. The first impregnated support is calcined to form a first calcined support and a second portion of the solution is impregnated on the first calcined support. The catalyst is useful for hydrogenating alkanoic acids to ethanol.
Abstract: A method of supporting a hydrocarbon synthesis catalyst material comprising a catalytically active metal and a carrier material on a metallic substrate in which the catalyst material is applied to the substrate and is heated to form a catalyst material layer fixed to the substrate with cracks having sub-millimeter widths formed in the layer creating domains with the range of the relative sizes of the domains being approximately 1:5.
Type:
Grant
Filed:
July 9, 2007
Date of Patent:
August 27, 2013
Assignee:
Shell Oil Company
Inventors:
Abderrahmane Chettouf, Gerardus Petrus Lambertus Niesen, Marinus Johannes Reynhout, David Schaddenhorst
Abstract: The present invention relates to a process for the hydrogenation, in particular selective hydrogenation of at least one unsaturated hydrocarbon compound comprising reacting the at least one unsaturated hydrocarbon compound with hydrogen in the presence of a hydrogenation catalyst, wherein the hydrogenation catalyst comprises a mixture of an ordered intermetallic compound and an inert material. According to another aspect, the present invention is concerned with the use of a mixture of at least one ordered intermetallic compound and at least one inert material, as a catalyst. The mixtures for use as a catalyst in the present invention can be prepared easily and achieve a superior activity in relation to the prior art, while preserving the high selectivity to the target compounds, e.g. in the selective hydrogenation of acetylene to ethylene.
Type:
Grant
Filed:
September 18, 2008
Date of Patent:
August 27, 2013
Assignee:
Max-Planck-Gesellschaft zur Förderung der Wissenschaften E.V.
Inventors:
Marc Armbruester, Marcus Schmidt, Kirill Kovnir, Matthias Friedrich, Karina Weinhold, Juri Grin, Robert Schloegl
Abstract: The disclosed invention relates to a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant composition through a microchannel reactor in contact with a Fischer-Tropsch catalyst to convert the reactant composition to the product, the microchannel reactor comprising a plurality of process microchannels containing the catalyst; transferring heat from the process microchannels to a heat exchanger; and removing the product from the microchannel reactor; the process producing at least about 0.5 gram of aliphatic hydrocarbon having at least about 5 carbon atoms per gram of catalyst per hour; the selectivity to methane in the product being less than about 25%. The disclosed invention also relates to a supported catalyst comprising Co, and a microchannel reactor comprising at least one process microchannel and at least one adjacent heat exchange zone.
Type:
Application
Filed:
February 16, 2012
Publication date:
August 22, 2013
Inventors:
Yong Wang, Anna Lee Tonkovich, Terry Mazanec, Francis P. Daly, Dave VanderWiel, Jianli Hu, Chunshe Cao, Charles Kibby, Xiaohong Li, Michael D. Briscoe, Nathan Gano, Ya-Huei Chin
Abstract: Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, particularly light-duty diesel vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
Type:
Application
Filed:
August 17, 2012
Publication date:
August 22, 2013
Applicant:
SDCmaterials, Inc,
Inventors:
Qinghua YIN, Xiwang QI, Maximilian A. BIBERGER, Jayashir SARKAR
Abstract: An exhaust aftertreatment system for a lean-burn engine may include a lean NOX trap that comprises a catalyst material. The catalyst material may remove NOX gases from the engine-out exhaust emitted from the lean-burn engine. The catalyst material may include a NOX oxidation catalyst that comprises a perovskite compound.
Abstract: Disclosed are hybrid synthesis gas conversion catalysts containing at least one Fischer-Tropsch component and at least one acidic component deposited on a monolith catalyst support for use in synthesis gas conversion processes and methods for preparing the catalysts. Also disclosed are synthesis gas conversion processes in which the hybrid synthesis gas conversion catalysts are contacted with synthesis gas to produce a hydrocarbon product containing at least 50 wt % C5+ hydrocarbons. Also disclosed are synthesis gas conversion processes in which at least one layer of Fischer-Tropsch component deposited onto a monolith support is alternated with at least one layer of acidic component in a fixed bed reactor.
Type:
Application
Filed:
February 14, 2012
Publication date:
August 15, 2013
Applicant:
Chevron U.S.A Inc.
Inventors:
Charles Leonard Kibby, Robert James Saxton, JR., Kandaswamy Jothimurugesan, Tapan Kumar Das, Howard Steven Lacheen, Michael Bartz, Alfred Has
Abstract: A composition of matter and method of manufacturing as thin film electrocatalyst. The method uses physical vapor deposition to deposit a thin film of PtM (Ma transition metal) to form a Pt based alloy and annealing the thin film to achieve a (111) hexagonal faceted grain structure having catalytic activity approaching Pt3Ni (111) skin.
Abstract: A nickel-based catalyst is provided for reducing carbon monoxide, hydrocarbon emissions, and nitrogen oxides from vehicle exhausts. The catalyst is impregnated directly onto a carrier which is non-reactive with nickel. The nickel is contained on said carrier at a loading of between about 2 to about 20 wt %. When used in a vehicle exhaust gas treatment system, the catalyst provides improved efficiency in reducing CO, HC, and NOx emissions over the use of conventional three-way-catalysts.
Type:
Grant
Filed:
February 7, 2012
Date of Patent:
August 13, 2013
Assignee:
Ford Global Technologies, LLC
Inventors:
Jeffrey Scott Hepburn, Hungwen Jen, Eva Thanasiu
Abstract: A process is described for producing a powder batch comprises a plurality of particles, wherein the particles include (a) a first catalytically active component comprising at least one transition metal or a compound thereof; (b) a second component different from said first component and capable of removing oxygen from, or releasing oxygen to, an exhaust gas stream; and (c) a third component different from said first and second components and comprising a refractory support. The process comprises providing a precursor medium comprising a liquid vehicle and a precursor to al least one of said components (a) to (c) and heating droplets of said precursor medium carried in a gas stream to remove at least part of the liquid vehicle and chemically convert said precursor to said at least one component.
Type:
Grant
Filed:
June 27, 2008
Date of Patent:
August 13, 2013
Assignee:
Cabot Corporation
Inventors:
Miodrag Oljaca, Toivo T. Kodas, Ranko P. Bontchev, Klaus Kunze, Kenneth C. Koehlert
Abstract: The present invention relates to a method of manufacturing a heterogeneous catalyst using space specificity, comprising: depositing a metal in a core of micelles provided on a substrate; depositing an oxide around a shell of the micelles after the deposition of the metal in the core of the micelle; and reducing the metal in the core of the micelles after the deposition of the oxide, then, removing the micelles, and a method for generation of hydrogen through decomposing water in the presence of the heterogeneous catalyst prepared according to the aforesaid method under a light source.
Type:
Application
Filed:
June 29, 2012
Publication date:
August 8, 2013
Applicant:
Korea Advanced Institute of Science and Technology
Abstract: A method for preparing a lactone is described. Also described, is the preparation of butyrolactone, valerolactone and caprolactone. The method for preparing a lactone can include a reduction of a dicarboxylic acid using hydrogen, in a gaseous phase and in the presence of an effective amount of a catalyst including an active ruthenium-tin phase including at least one Ru2Sn3 alloy and an Ru3Sn7 alloy.
Abstract: A catalyst for purifying exhaust gases includes a substrate, and a catalytic layer. The catalytic layer includes a lower catalytic layer, a first upper catalytic layer, and a second upper catalytic layer. The lower catalytic layer being loaded with Pd and/or Pt is formed on the substrate. The first upper catalytic layer being loaded with Pd covers an upstream side of the lower catalytic layer, and exhibits a concentration of loaded Pd that falls in a range of from 4.5 to 12% by mass when the entirety of the first upper catalytic layer is taken as 100% by mass. The second upper catalytic layer being loaded with Rh covers a downstream side of the lower catalytic layer.
Type:
Grant
Filed:
December 27, 2010
Date of Patent:
August 6, 2013
Assignees:
Toyota Jidosha Kabushiki Kaisha, Cataler Corporation
Abstract: A reduced metallic catalyst or pre-activated catalyst is formed by contacting a precursor catalyst or a reduced metallic catalyst with a modifier solution in the presence of a source of hydrogen and heat treating the precursor catalyst or the reduced metallic catalyst at super-atmospheric pressure to obtain the reduced metallic catalyst from the precursor catalyst or the pre-activated catalyst from the reduced metallic catalyst. A method of hydrogenating a hydrogenatable precursor includes providing a reduced metallic catalyst or the pre-activated catalyst prepared with modifier buffer and contacting the reduced metallic catalyst or pre-activated catalyst with the hydrogenatable precursor in the presence of hydrogen and, optionally, in the presence of a modifier solution.
Abstract: The present disclosure relates to a surface structure control and preparation process for a metal nanocatalyst involving a metal nanocatalyst. The present disclosure provides a surface structure control and continuous preparation system for a metal nanocatalyst, a metal nanocatalyst having an open surface structure and high surface energy, and a surface structure control and a preparation process thereof. The system is provided with a nucleation electrolytic cell, a distribution valve, at least two growth electrolytic cells, with two ends of the distribution valve being connected to an output port of the nucleation electrolytic cell and to input port of all the growth electrolytic cells, respectively. The metal nanocatalyst having an open surface structure is a single metal nanoscale crystal and has a high density of terrace atoms or active sites on the surface thereof.
Abstract: A method of preparing a Fischer-Tropsch catalyst for handling, storage, transport and deployment, including the steps of impregnating a porous support material with a source of cobalt, calcining the impregnated support material activating the catalyst, and passivating the activated catalyst.
Abstract: A water splitting oxygen evolving catalyst including: a metal oxide particle including a metal oxide represented by Formula 1: Co1?xMxOY ??Formula I wherein M is at least one selected from Al, In, Ga, Si, and Sn, x and y respectively satisfy the inequalities 0?x<0.5 and 1<y<2, and the metal oxide particle is in the form of a flake.
Type:
Application
Filed:
July 30, 2012
Publication date:
July 18, 2013
Applicant:
SAMSUNG ELECTRONICS CO. LTD.
Inventors:
Jeong-hee LEE, Tae-gon KIM, Tae-hyung KIM, Seoung-jae IM
Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support that comprises cobalt.
Abstract: Hollow metal nanoparticles and methods for their manufacture are disclosed. In one embodiment the metal nanoparticles have a continuous and nonporous shell with a hollow core which induces surface smoothening and lattice contraction of the shell. In a particular embodiment, the hollow nanoparticles have an external diameter of less than 20 nm, a wall thickness of between 1 nm and 3 nm or, alternatively, a wall thickness of between 4 and 12 atomic layers. In another embodiment, the hollow nanoparticles are fabricated by a process in which a sacrificial core is coated with an ultrathin shell layer that encapsulates the entire core. Removal of the core produces contraction of the shell about the hollow interior. In a particular embodiment the shell is formed by galvanic displacement of core surface atoms while remaining core removal is accomplished by dissolution in acid solution or in an electrolyte during potential cycling between upper and lower applied potentials.
Abstract: The present invention relates to catalysts, to processes for making catalysts with halide containing precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.
Abstract: The present invention relates to catalysts, to processes for making catalysts with acidic precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.
Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The multifunctional catalysts are preferably used for converting acetic acid and ethyl acetate to ethanol. The catalyst is effective for providing an acetic acid conversion greater than 20% and an ethyl acetate conversion greater than 0%. The catalyst comprises a precious metal and one or more active metals on a modified support. The modified support includes a metal selected from the group consisting of tungsten, vanadium, and tantalum, provided that the modified support does not contain phosphorous.
Abstract: The aim of the invention is to improve the cleaning power of detergents and cleaning agents, especially with regard to bleachable stains, while avoiding any damage to the textile treated with said detergents and cleaning agents. For this purpose, a bleach catalyst in the form of a complex of Fe—, Mo—, Mn— and/or W with a ligand having a skeleton of formula (I) is used.
Type:
Grant
Filed:
May 23, 2012
Date of Patent:
July 9, 2013
Assignee:
Henkel AG & Co. KGaA
Inventors:
Andre Hatzelt, Anette Nordskog, Siglinde Erpenbach, Jorg Sundermeyer, Felix Gartner
Abstract: Methods and systems for contacting of a crude feed with one or more catalysts to produce a total product that includes a crude product are described. The crude product is a liquid mixture at 25° C. and 0.101 MPa. The crude product has an MCR content of at most 90% of the MCR content of the crude feed. One or more other properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.
Abstract: A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation.
Abstract: The lean NOx trap catalyst composition of the present invention comprises distinct layers, or zone configuration or multi-brick arrangement. The top layer, front zone or front brick is free of any alkali or alkaline earth NOx trapping components. The under layer, rear zone or rear brick may contain any desirable NOx trapping component in contact with a precious metals group catalyst (e.g., Pt). Catalysts of this invention show wide temperature operation window with superior low temperature performance.
Abstract: A composite material includes an aggregate which contains a first metal particle constituting a core and second metal oxide particulates surrounding the first metal particle and having an average primary particle diameter ranging from 1 to 100 nm.
Type:
Grant
Filed:
July 20, 2006
Date of Patent:
July 2, 2013
Assignee:
Kabushiki Kaisha Toyota Chuo Kenkyusho
Inventors:
Tomoyuki Kayama, Kouzi Banno, Kiyoshi Yamazaki, Koji Yokota
Abstract: The invention concerns a catalyst comprising palladium on an oxide of aluminum support. In the calcined state, the oxide of aluminum support has a diffractogram obtained by X ray diffraction comprising peaks which correspond to the following interplanar spacings and relative intensities: Interplanar spacings d (10?10 m) Relative intensities ±5 × 10?3 d I/I0 (%) 4.54? ?3-10 2.70-2.75 ?5-25 2.41? 35-45 2.28? 15-30 2.10? ?0-10 1.987 30-50 1.958 30-50 1.642 0-5 1.519 10-20 1.
Type:
Grant
Filed:
June 19, 2009
Date of Patent:
July 2, 2013
Assignee:
IFP Energies Nouvelles
Inventors:
Antoine Fecant, Lars Fischer, Bernadette Rebours, Renaud Revel, Cecile Thomazeau
Abstract: Amine stabilizing agents containing an azeotrope comprising water, an alcohol, and sodium hydride. Amine stabilizing agents containing water and a liquid silica hydroxide compound. Methods of making of amine stabilizing agents where solid silicon rock and sodium hydroxide are mixed with an ammonium/water solution to produce a green liquid in a first stage of the reaction. Alcohol is added and the alcohol fraction is separated from the non-alcohol fraction to produce an alcohol fraction product and a bottom fraction that is not soluble in alcohol or organics. The agents can be added to amines for stabilizing amines in anime processing of gases, in CO2 capture, in CO2 abatement systems and in other systems where amines are utilized to remove contaminants.
Abstract: A gas fired catalytic heater is provided that foregoes the need for an electrical heating element to provide the activation energy for the hydrocarbon catalyst pad. An alcohol self-igniting catalyst pad is used to provide the activation energy to the hydrocarbon catalyst pad thereby removing dependence of the heater on an outside electrical energy source to initiate start-up of the heater. The catalyst pad includes a flexible wash coat; a noble metal dispersed on the wash coat; an anti-sintering element saturating the wash coat; and a catalyst promoter saturating the wash coat.
Abstract: A first layer of a catalyst material is formed on a substrate and heat treated to form a first plurality of nanoparticles. A second layer of a catalyst material is then formed over the substrate and the first plurality of nanoparticles and heat treated to form a second plurality of nanoparticles. The first layer of nanoparticles is advantageously not affected by the deposition or heat treatment of the second layer of catalyst material, for example being pinned or immobilised, optionally by oxidation, before formation of the second layer.
Type:
Application
Filed:
July 19, 2011
Publication date:
June 20, 2013
Applicant:
CAMBRIDGE ENTERPRISE LIMITED
Inventors:
John Robertson, C. Santiago Esconjauregui
Abstract: An object is to maintain an effect of enhancing activity of noble metal particles by transition metal without increasing production cost and an environmental load. An exhaust gas purifying catalyst 1 is composed of: noble metal particles 2; first compounds 3 which contact the noble metal particles 2 and suppress movement of the noble metal particles 2; and second compounds 4 which contain the noble metal particles 2 and the first compounds 3, suppress the movement of the noble metal particles 2, and suppress coagulation of the first compounds 3 following mutual contact of the first compounds 3, wherein the first compounds 3 support the noble metal particles 2, and simplexes or aggregates of the first compounds 3 supporting the noble metal particles 2 are included in section partitioned by the second compounds 4.
Abstract: An exhaust gas purification catalyst of the present invention contains at least a precious metal coated with lanthanum-containing alumina. In at least one embodiment, it is possible to provide: an exhaust gas purification catalyst which can (i) have an increase in heat resistance, and (ii) inhibit the precious metal from being mixed in alumina and therefore inhibit the precious metal from forming a solid solution in combination with alumina; and a method for efficiently purifying, by use of the catalyst, an exhaust gas emitted from an internal-combustion engine.
Type:
Grant
Filed:
August 27, 2009
Date of Patent:
June 18, 2013
Assignees:
Umicore Shokubai Japan Co., Ltd., Umicore Shokubai USA Inc.
Abstract: Low temperature activity of a vanadium-free selective catalytic reduction catalyst is provided by a mixed metal oxide support containing oxides of titanium and zirconium, the support having a promoter deposited on the surface of the mixed metal oxide support, and further having an active catalyst component deposited over the promoter on the mixed metal oxide support surface. Suitable promoters include oxides of silicon, boron, aluminum, cerium, iron, chromium, cobalt, nickel, copper, tin, silver, niobium, lanthanum, titanium, and combinations thereof. Suitable active catalyst components include oxides of manganese, iron and cerium.
Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.
Abstract: A supported noble metal catalyst and a process for preparing the same in situ are provided. Hexamethylenetetramine, a soluble divalent metal salt solution, a Al2O3 carrier and a soluble noble metal salt solution, are mixed and crystallized, in which the hexamethylenetetramine acts as both a precipitating agent for producing hydrotalcite and a reducing agent for the noble metal precursor, and a supported catalyst Me-LDHs-Al2O3 containing an elementary substance of a noble metal is prepared by a one-step reaction. During the growth of the hydrotalcite, Al3+ on the surface layer of the Al2O3 carrier is directly used as the trivalent metal ion to form the slab structure of the hydrotalcite, and the hydrotalcite is grown in situ on the surface of the alumina carrier. The noble metal element particle in the catalyst has a particle size of 10 to 60 nm, and has an even and stable dispersion on or between slabs of the hydrotalcite.
Type:
Application
Filed:
May 27, 2010
Publication date:
June 6, 2013
Applicant:
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY
Abstract: Process for fabricating a catalyzed ion transport membrane (ITM). In one embodiment, an uncatalyzed ITM is (a) contacted with a non-reducing gaseous stream while heating to a temperature and for a time period sufficient to provide an ITM possessing anion mobility; (b) contacted with a reducing gaseous stream for a time period sufficient to provide an ITM having anion mobility and essentially constant oxygen stoichiometry; (c) cooled while contacting the ITM with the reducing gaseous stream to provide an ITM having essentially constant oxygen stoichiometry and no anion mobility; and (d) treated by applying catalyst to at least one of (1) a porous mixed conducting multicomponent metallic oxide (MCMO) layer contiguous with a first side of a dense layer of MCMO and (2) a second side of the dense MCMO layer. In another embodiment, these steps are carried out in the alternative order of (a), (d), (b), and (c).
Type:
Grant
Filed:
May 25, 2010
Date of Patent:
June 4, 2013
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Michael Francis Carolan, Charles Leonard Kibby
Abstract: A nitrogen oxide storage catalyst is provided, which has two catalytically active coatings on a support body. The lower coating applied directly to the support body has a nitrogen oxide storage function and includes platinum as a catalytically active component applied to a homogeneous magnesium-aluminum mixed oxide in combination with a nitrogen oxide storage material, in which a nitrogen oxide storage component is likewise present and applied to a homogeneous magnesium-aluminum mixed oxide. The second layer is notable for three-way catalytic activity, and includes palladium applied to aluminum oxide and barium oxide or strontium oxide, but no platinum.
Type:
Grant
Filed:
January 27, 2010
Date of Patent:
June 4, 2013
Assignee:
Umicore AG & Co. KG
Inventors:
Ruediger Hoyer, Stephan Eckhoff, Thomas R. Pauly
Abstract: A process for the preparation of a packed bed comprising an iron enriched cobalt catalyst for use in a Fischer-Tropsch reaction, the process comprising the steps of: (a) providing a packed bed with one or more catalyst particles comprising metallic cobalt; (b) contacting a part of the catalyst particle(s) in the packed bed with an iron containing compound. The process is preferably conducted in situ which conveniently results in an iron containing cobalt catalyst with a higher C5+ selectivity. In certain preferred embodiments the concentration of iron increases towards the surface of the resulting catalyst particles whereas the cobalt concentration is constant which further increases the selectivity of the catalyst to producing C5+ hydrocarbons.
Type:
Grant
Filed:
July 12, 2007
Date of Patent:
June 4, 2013
Assignee:
Shell Oil Company
Inventors:
Ralph Haswell, Carolus Matthias Anna Maria Mesters, Heiko Oosterbeek, Thomas Joris Remans, Marinus Johannes Reynhout
Abstract: An aqueous solution of a water soluble salt of a preformed transition metal catalyst together with hydrogen peroxide is disclosed. The composition is useful in bleaching a variety of substrates.
Type:
Grant
Filed:
July 6, 2011
Date of Patent:
June 4, 2013
Assignee:
Conopco, Inc.
Inventors:
Ronald Hage, Jean Hypolites Koek, Marinus Maria Cornelis Gerardus Warmoeskerken
Abstract: According to the present invention, the catalyst performance of a chelate catalyst comprising a complex of a macrocyclic compound such as a porphyrin derivative is improved. Also, the following method is provided: a method for preparing a fuel cell electrode catalyst comprising a nitrogen-containing metal complex in which a metallic element is coordinated with a macrocyclic organic compound, such method comprising the steps of: adding tin oxalate to the nitrogen-containing metal complex; and baking a mixture of the nitrogen-containing metal complex and tin oxalate in an inert gas atmosphere, wherein elution of metal tin is carried out via acid treatment.
Type:
Grant
Filed:
July 29, 2008
Date of Patent:
June 4, 2013
Assignees:
Toyota Jidosha Kabushiki Kaisha, Helmholtz-Zentrum Berlin Fuer Materialien und Energie GmbH
Inventors:
Naoko Iwata, Hiroaki Takahashi, Peter Bogdanoff, Sebastian Fiechter, Iris Herrmann-Geppert, Ulrike Kramm
Abstract: A supported composite particle material comprises: a composite particle formed of an oxidized nickel and X (wherein X represents at least one of elements selected from the group consisting of nickel, palladium, platinum, ruthenium, gold, silver and copper); and a support on which the composite particle is supported, the supported composite particle material having a supported layer in which the composite particle is localized.
Abstract: Diesel oxidation catalysts comprising a first washcoat layer including a platinum group metal impregnated on a promoted non-zeolitic support are described. The promoter is one or more of tin, manganese, indium, group VIII metals. Methods of making and using the diesel oxidation catalyst, including emissions treatment systems, are also described.
Type:
Grant
Filed:
December 1, 2011
Date of Patent:
May 28, 2013
Assignee:
BASF Corporation
Inventors:
Shiang Sung, Stanley A. Roth, Torsten W. Mueller-Stach, Attilio Siani
Abstract: The present invention relates to a process for producing a supported tin-comprising catalyst, wherein a solution (S) comprising tin nitrate and at least one complexing agent is applied to the support, where the solution (S) does not comprise any solid or has a solids content of not more than 0.5% by weight based on the total amount of dissolved components.
Abstract: A process for producing a catalyst, the process comprising the steps of: impregnating a first metal from a first metal precursor on a support to form a first impregnated support; calcining the first impregnated support; impregnating a second metal from a second metal precursor on the first impregnated support to form a second impregnated support; calcining the second impregnated support to form the catalyst, wherein the catalyst has a total metal loading of at least 2 wt. % based on the total weight of the catalyst. A method for hydrogenating alkanoic acids in the presence of the catalyst is also disclosed.
Type:
Application
Filed:
November 23, 2011
Publication date:
May 23, 2013
Applicant:
CELANESE INTERNATIONAL CORPORATION
Inventors:
Heiko Weiner, Ana Rita Almeida, Graham Ormsby