Cerium Patents (Class 502/304)
  • Patent number: 10882025
    Abstract: Catalyst/catalyst support compositions are characterized by a supported cerium oxide, deposited onto a silica, alumina, titanium or zirconium based support, including particles of said supported oxide deposited onto said support, individualized or in the form of aggregates, no greater than 500 nm in size and having, after 6 hours of calcination at a temperature of at least 800° C., a measured reducibility from 30° C. and 900° C. of at least 80%; such compositions are prepared by combining a colloidal dispersion of the supported oxide and a suspension of the support, drying the resulting mixture by atomization and drying the resulting product by calcination.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: January 5, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Franck Fajardie, Stephan Verdier
  • Patent number: 10857522
    Abstract: A process for producing propylene glycol from glycerol including a catalyst of Cu and Ce at concentrations of up to 15% of each metal. In addition, it is described a catalyst of Cu and Ce to perform the selective reduction of glycerol and the process of production of such catalyst.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: December 8, 2020
    Assignees: CONSEJO NACIONAL DE INVESTIGACIONES CIENTIFICAS Y TECNICAS (CONICET), UNIVERSIDAD NACIONAL DEL LITORAL, INIS BIOTECH LLC.
    Inventors: Raul Alberto Comelli, Lisandro Roberto Ferrari
  • Patent number: 10781735
    Abstract: Methods and systems are featured for reducing harmful exhaust gas components of combustion devices such as gasoline-powered combustion engines (e.g., predominately stoichiometric running engines). The methods and systems include an underbody combination of a hydrocarbon trap (HCT), suited for cold start hydrocarbon adsorption, as well as an associated NOx trap. The system is inclusive of a control unit for extending a lean exhaust condition reaching the desorbing HCT as to avoid a deficiency in oxygen during the time period of HCT desorption. The system is also inclusive of one or more TWCs as in one associated with the underbody HCT-NOx-trap combination and/or one positioned in a close coupled position. Platinum group metals as in Pd, Rh and Pt are also featured on one, two or all three of the HCT, NOx-trap, and TWC when present.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: September 22, 2020
    Assignee: Umicore AG & CO KG
    Inventors: David Moser, John Nunan, Chad Alltizer
  • Patent number: 10780423
    Abstract: A catalyst powder according to the present invention is a catalyst powder that includes: a core portion that contains ceria and zirconia; and a surface layer portion that is located on the core portion and contains ceria and zirconia. The ratio (M2/M1) is 0.30 or more and 0.95 or less, the ratio (M2/M1) being the ratio of a mole fraction M2 (mol %) of cerium in the surface layer portion measured using X-ray photoelectron spectroscopy to a mole fraction M1 (mol %) of cerium in the entire powder. It is preferable that the ratio (M4/2/M3/1) between M3/1 and M4/2 is 1.1 or more and 5.0 or less, wherein M3/1 (=M3/M1) represents the ratio between a mole fraction M3 (mol %) of zirconium in the entire powder and a mole fraction M1 (mol %) of cerium in the entirety of the powder, and M4/2 (=M4/M2) represents the ratio between a mole fraction M4 (mol %) of zirconium measured using X-ray photoelectron spectroscopy and a mole fraction M2 (mol %) of cerium measured using X-ray photoelectron spectroscopy.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 22, 2020
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yuki Nagao, Yunosuke Nakahara, Takanori Masaki
  • Patent number: 10765998
    Abstract: A three-way catalyst for purifying exhaust including noble metal components, enables sintering of the noble metal to be suppressed even at high temperature, enables carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) to be removed and a method for purifying exhaust gas. A carrier having a honeycomb structure is coated with two or more layers of the catalyst compositions, an upper layer including a heat resistant inorganic oxide supporting Pd and a La-containing oxide, a lower layer including a heat resistant inorganic oxide supporting Rh. The content of La in terms of La2O3 is 9.6 g/L to 23 g/L, the content of Ce in terms of CeO2 is 5 g/L to 20 g/L, and the content of Ba in terms of BaO is 1.2 g/L or less per unit volume of the honeycomb structure.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: September 8, 2020
    Assignee: N.E. CHEMCAT CORPORATION
    Inventors: Takuya Katoh, Akito Takayama
  • Patent number: 10746115
    Abstract: Methods and systems are provided for an exhaust aftertreatment arrangement. In one example, a system includes a LNT upstream of an SCR with an oxygen storage component arranged therebetween, and where a rich operation of an engine is limited based on an oxygen load of the oxygen storage component when an exhaust gas temperature is higher than a limit temperature.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: August 18, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Jan Harmsen, Maria Armiento, Mario Balenovic, Robert Ukropec, Christian Nederlof
  • Patent number: 10669640
    Abstract: Provided is an electrocatalyst for anion exchange membrane water electrolysis, including a carbonaceous material, and nickel electrodeposited on the carbonaceous material, wherein nickel is partially substituted with platinum and the substitution with platinum provides increased hydrogen evolution activity as compared to the same electrocatalyst before substitution with platinum. Also provided are a method for preparing the electrocatalyst and an anion exchange membrane water electrolyzer using the same. The nickel electrocatalyst coated with an ultralow loading amount of platinum for anion exchange membrane water electrolysis shows excellent hydrogen evolution activity and has a small thickness of catalyst, thereby providing high mass transfer and high catalyst availability.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 2, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Jong Hyun Jang, Soo-Kil Kim, Sang Hyun Ahn, Hyoung-Juhn Kim, Jin Young Kim, Sung Jong Yoo, Dirk Henkensmeier, Jonghee Han, Jaeyune Ryu
  • Patent number: 10634026
    Abstract: An overall exhaust gas purification function based on an NOx reduction function and an HC oxidation function in an NSR catalyst arranged in an exhaust passage of an internal combustion engine is improved. In the NSR catalyst, a portion of an NOx storage catalyst layer supported by a carrier, which extends from its upstream end to an X % (0<X?75) of an overall length thereof along the flow of exhaust gas, forms an upstream side catalyst layer, and a portion of the NOx storage catalyst layer at the downward side of the upstream side catalyst layer along the flow of exhaust gas forms a downstream side catalyst layer. The upstream side catalyst layer does not contain potassium (K) as an NOx storage material, but the downstream side catalyst layer contains potassium (K) as an NOx storage material.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 28, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Nobusuke Kabashima
  • Patent number: 10618034
    Abstract: An exhaust gas purification device which has improved exhaust gas purification performance. An exhaust gas purification device which includes a first catalyst layer that contains: a Pd-supporting catalyst which is obtained by having alumina carrier particles support Pd; a first Rh-supporting catalyst which is obtained by having first ceria-zirconia carrier particles support Rh; and second ceria-zirconia carrier particles. This exhaust gas purification device is configured such that: the ceria concentration in the first ceria-zirconia carrier particles is 30 wt % or less; and the amount of ceria in the second ceria-zirconia carrier particles is larger than the amount of ceria in the first ceria-zirconia carrier particles.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 14, 2020
    Assignee: CATALER CORPORATION
    Inventors: Chihiro Kasuya, Kenichi Taki, Satoshi Matsueda, Sho Hoshino
  • Patent number: 10610852
    Abstract: Provided are: a complex oxide that exhibits high redox ability even at low temperatures, has excellent heat resistance, and stably retains these characteristics even on repeated oxidation and reduction at high temperature; a method for producing the same; and an exhaust gas purification catalyst. The inventive complex oxide contains Ce; rare earth metal element other than Ce, including Y; Al and/or Zr; and Si; such that the Ce, and said other elements other than Ce and Si, are present in a mass ratio of 85:15-99:1, calculated as oxides; and has a characteristic such that when it is subjected to temperature-programmed reduction (TPR) measurement in a 10% hydrogen-90% argon atmosphere at from 50° C. to 900° C. with the temperature increasing at a rate of 10° C./min, followed by oxidation treatment at 500° C. for 0.5 hours, and then temperature-programmed reduction measurement is performed again, its calculated reduction rate at and below 400° C. is at least 2.0%.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: April 7, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Naotaka Ohtake, Keiichiro Mitsuoka, Kazuhiko Yokota
  • Patent number: 10612441
    Abstract: A substrate for a catalytic converter, comprising an open cell carbon foam having a geometric surface area of at least about 5000 m2/m3 and a permeability of at least about 8.0 darcys, wherein the substrate has a catalytic material which includes non-noble metal nano-scale catalyst particles.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: April 7, 2020
    Inventor: James R. Cartiglia
  • Patent number: 10553877
    Abstract: The present invention relates to an electrochemical catalyst structure and a method for producing the same. The electrochemical catalyst structure may include a catalyst layer including a perovskite based oxide as an electrochemical oxygen reduction catalyst; and a modifying layer being in contact with the catalyst layer and including a transition metal oxide capable of chemical interaction with a metal of the perovskite based oxide through electron orbital hybridization.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 4, 2020
    Assignee: UNIVERSITY-INDUSTRY FOUNDATION(UIF), YONSEI UNIVERSITY
    Inventors: Joo Ho Moon, Dae Hee Lee, Jai Wan Tan
  • Patent number: 10525503
    Abstract: A method for the preparation of a catalyzed monolithic body or a catalyzed particular filter. The method includes the step of suctioning a sol-solution containing catalytically active material and metal oxide catalyst carriers or precursors thereof into pores of a monolithic substrate, solely by capillary forces and without the application of vacuum or pressure.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: January 7, 2020
    Assignee: Halder Topsoe A/S
    Inventor: Keld Johansen
  • Patent number: 10512897
    Abstract: The present invention involves micron-scale cerium oxide particles having a multi-cores single-shell structure, comprising: a cerium oxide shell, the shell being composed of crystalline and/or amorphous nano-scale cerium oxide particles; and a plurality of nano-scale cerium oxide grain cores aggregates located in the interior of the shell. Also involved is a preparation method for the micron-scale cerium oxide particle having a multi-cores single-shell structure. A supported catalyst with the micron-scale cerium oxide particles according to the invention as the support have good hydrothermal stability and good sulfur resistance, and the active components of the supported catalyst are not easily embedded, and the supported catalyst has a great application prospect in the field of catalytic oxidation of exhaust emissions such as CO, NO or volatile organic compounds.
    Type: Grant
    Filed: February 15, 2015
    Date of Patent: December 24, 2019
    Assignee: TIANJIN UNIVERSITY
    Inventors: Meiqing Shen, Jun Wang, Jianqiang Wang, Guangxi Wei
  • Patent number: 10512899
    Abstract: A composition of formula Ce1-a-b-cNaMbDcOx??I wherein M stands for one or more elements from the group of alkaline metals, except sodium, N is Bi and/or Sb, D is present, or is not present, and if present is selected from one or more of Mg, Ca, Sr, Ba; Y, La, Pr, Nd, Sm, Gd, Er; Fe, Zr, Nb, Al; a is a number within the range of 0<a?0.9, b is a number within the range of 0<b?0.3, c is a number within the range of 0<c?0.2, a plus b plus c is <1, and x is a number within the range of 1.2?x?2, and its use for exhaust gas aftertreatment systems of Diesel engines, gasoline combustion engines, lean burn engines and power plants.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 24, 2019
    Assignee: TREIBACHER INDUSTRIE AG
    Inventors: Lars Hensgen, Karl Schermanz, Klaus Stöwe, Viktor Wolf
  • Patent number: 10486149
    Abstract: A photocatalytic system having enhanced photo efficiency/photonic efficacy is provided that includes a thin nucleation material coated on a substrate. The nucleation material enhances lattice matching for a subsequently deposited photocatalytic active material. Such a photocatalytic system may be used as a self-cleaning surface in an application where removal of fingerprints and other residue is desired. In certain aspects, the nucleation material comprises aluminum oxide (Al2O3) and the photocatalytic material comprises an anatase phase of titanium dioxide (TiO2) deposited over the nucleation material. A photocatalytic activity of the system is ?about 50% above a comparative photocatalytic activity where the photocatalytic active material is disposed directly on the substrate. Methods of making such photocatalytic systems are also provided.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: November 26, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gayatri Vyas Dadheech, Thomas A. Seder, James A. Carpenter
  • Patent number: 10471413
    Abstract: Described is a catalyst composition suitable for use as a selective catalytic reduction catalyst, including small-pore molecular sieve particles having a pore structure and a maximum ring size of eight tetrahedral atoms and impregnated with a promoter metal, and metal oxide particles dispersed within the small-pore molecular sieve particles and external to the pore structure of the small-pore molecular sieve particles, wherein the metal oxide particles include one or more oxides of a transition metal or lanthanide of Group 3 or Group 4 of the Periodic Table. A method for preparing the catalyst, a method for selectively reducing nitrogen oxides, and an exhaust gas treatment system are also described.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: November 12, 2019
    Assignee: BASF Corporation
    Inventors: Jaya L. Mohanan, Gary A. Gramiccioni, John Hochmuth, Kenneth E. Voss
  • Patent number: 10413886
    Abstract: The present invention relates to a catalyst comprising two layers on an inert catalyst carrier, wherein a layer A lying directly on the catalyst carrier contains at least one platinum group metal and one cerium/zirconium/SE mixed oxide, and a layer B, applied on layer A and in direct contact with the flow of exhaust gas, contains at least one platinum group metal and a cerium/zirconium/SE mixed oxide, wherein SE stands for a rare earth metal other than from cerium, characterized in that the fraction of SE oxide in the cerium/zirconium/SE mixed oxide of layer A is less than the fraction of SE oxide in the cerium/zirconium/SE mixed oxide of layer B.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: September 17, 2019
    Assignee: UMICORE AG & CO. KG
    Inventors: Joel Despres, Joerg-Michael Richter, Martin Roesch, Nicole Schichtel, Marcus Schmidt, Jan Schoenhaber, Stephanie Spiess, Anke Wolf
  • Patent number: 10408102
    Abstract: An oxidation catalyst device for exhaust gas purification, having a first catalyst coating layer on the exhaust gas flow's upstream side, second catalyst coating layer of an upper layer on exhaust gas flow's downstream side, and third catalyst coating layer of a lower layer on exhaust gas flow's downstream side, on a substrate, wherein the weight ratio of platinum to palladium in the first catalyst coating layer is 0.75 to 4.50, weight ratio of platinum to palladium in second catalyst coating layer is greater than 4.50 to 25.0, weight ratio of platinum to palladium in third catalyst coating layer is 0.12 or less, the length of first catalyst coating layer is 8% to 55% of the substrate's length, length of second catalyst coating layer is 45% to 95% of the substrate's length, and length of third catalyst coating layer is 45% to 95% of the substrate's length.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: September 10, 2019
    Assignees: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Noguchi, Makoto Tsuji, Hiroto Imai, Yusuke Shimmyo, Hiroyuki Matsubara
  • Patent number: 10378409
    Abstract: An object of the present disclosure is to provide an exhaust gas purification catalyst demonstrating superior storage of NOx contained in exhaust gas. The exhaust gas purification catalyst of the present disclosure has a substrate, a first catalyst layer containing a catalytic metal for NOx reduction and a NOx storage material and formed on the substrate, and a second catalyst layer containing a catalytic metal for NOx oxidation and formed on the first catalyst layer. In the exhaust gas purification catalyst of the present disclosure, the value obtained by dividing the volume of all large pores having a pore volume of 1000 ?m3 or more by the total volume of all medium pores of having a pore volume of 10 ?m3 to 1000 ?m3 in the second catalyst layer is 2.44 or less.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: August 13, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jota Yamauchi, Takahiro Hayashi, Masaya Ibe, Satoru Katoh, Tsuyoshi Hamaguchi, Toshiyuki Tanaka
  • Patent number: 10343117
    Abstract: A catalyst body which includes ceria:zirconia and a metal-zeolite, and is substantially free, or free, of tungsten or tungsten compounds, and methods of manufacture. The ceria and zirconia are present with a zirconia/ceria mole ratio of less than or equal to 1.0. The catalyst body is especially useful in NOx reduction applications.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 9, 2019
    Assignee: Corning Incorporated
    Inventors: Kaveh Adib, Jacqueline Leslie Brown, Steven Bolaji Ogunwumi
  • Patent number: 10340465
    Abstract: An embodiment relates to a composition including at least two powders. The powders are selected from the group including a powder including a p-doped perovskite; a powder including an n-doped perovskite; and a powder including an undoped perovskite. A method for producing the composition, a method for producing a detector using the composition, and a detector, in particular an X-ray detector, produced thereby are also disclosed.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: July 2, 2019
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Andreas Kanitz, Oliver Schmidt, Sandro Francesco Tedde
  • Patent number: 10336664
    Abstract: Fluidizable catalysts for the gas phase oxygen-free oxidative cracking of alkanes, such as hexane, to one or more olefins, such as ethylene, propylene, and/or butylene. The catalysts comprise 1-15% by weight per total catalyst weight of one or more vanadium oxides (VOx), such as V2O5. The catalysts are disposed on an alumina support that is modified with cerium to influence catalyst acidity and characteristics of lattice oxygen at the catalyst surface. Various methods of preparing and characterizing the catalyst as well as methods for the gas phase oxygen free oxidative cracking of alkanes, such as hexane, to one or more olefins, such as ethylene, propylene, and/or butylene with improved alkane conversion and olefins product selectivity are also disclosed.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 2, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohammad Mozahar Hossain, AbdAlwadood Hassan Elbadawi, Muhammad Yasir Khan, Shaikh Abdur Razzak
  • Patent number: 10258964
    Abstract: Provided are a composite oxide which is suitable as a co-catalyst for an exhaust gas purifying catalyst or the like, has high heat resistance, and has an excellent oxygen absorbing and desorbing capability at low temperatures and a method for producing the composite oxide. The composite oxide contains Ce and Zr, wherein the Ce content is 30 to 80 at % and the Zr content is 20 to 70 at %, based on the total of Ce and Zr being 100 at %, or further contains particular element M, wherein the Ce content is not less than 30 at % and less than 80 at %, the Zr content is not less than 20 at % and less than 70 at %, and the content of element M is more than 0 at % and not more than 15 at %, based on the total of Ce, Zr, and element M being 100 at %.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 16, 2019
    Assignee: SANTOKU CORPORATION
    Inventors: Tadatoshi Murota, Shigeru Ono, Tomonori Tahara
  • Patent number: 10220368
    Abstract: An oxygen storage material comprises three pyrochlore-type composite oxides which are a ceria-zirconia composite oxide, a lanthana-zirconia composite oxide, and a ceria-zirconia-lanthana composite oxide, and which coexist together, wherein the oxygen storage material contains: first secondary particles made of the pyrochlore-type ceria-zirconia composite oxide and the pyrochlore-type ceria-zirconia-lanthana composite oxide; and second secondary particles made of the pyrochlore-type lanthana-zirconia composite oxide and the pyrochlore-type ceria-zirconia-lanthana composite oxide.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: March 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Morikawa, Yoshihiro Goto, Toshitaka Tanabe, Masahide Miura, Hiromasa Suzuki
  • Patent number: 10189011
    Abstract: An exhaust gas purifying catalyst with an excellent effect of suppressing deterioration due to aggregation of a noble metal catalyst during endurance at high temperature, and a production method therefor. The method for producing the exhaust gas purifying catalyst that has a porous carrier and a noble metal catalyst supported thereon includes: preparing the porous carrier that contains alumina-ceria-zirconia composite oxide particles and has physical property values, after subjected to baking at 900° C. for 5 hours, of a pore diameter of the particles in the range of 2 to 20 nm, a specific surface area of the particles in the range of 75 to 115 m2/g, a crystallite size of a ceria-zirconia composite oxide contained in the particles in the range of 4 to 6 nm, and a bulk density of the particles in the range of 0.5 to 0.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: January 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takaaki Kanazawa, Shunsuke Haga, Isao Naito, Akiya Chiba, Motoya Abe
  • Patent number: 10159958
    Abstract: A lean NOx trap (LNT) catalyst includes a plurality of carriers connected to each other in series, wherein each of the carriers is embedded with at least one of a first wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO2), barium (Ba), and a precious metal, a second wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO2), barium (Ba), a third wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO2), and a fourth wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO2), and a higher content of a precious metal than the first wash coat, a ratio of the magnesium-substituted alumina to ceria (CeO2) being lower than that of the third wash coat, wherein the third and first wash coats are disposed in a foremost carrier through which exhaust gas passes sequentially from a front portion of the foremost carrier.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: December 25, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Chang Ho Jung
  • Patent number: 10130933
    Abstract: A catalyst composition for methanol partial oxidation for hydrogen production includes a zinc metal supported on a reducible porous oxide carrier. The zinc metal can vary from about 0.1 wt. % to about 30 wt. % of the catalyst composition. The catalyst composition can be used to produce hydrogen from methanol at high yield and with a low selectivity towards carbon monoxide (CO) production. The reducible porous oxide carrier includes a mechanical mixture of CeO2 and ZrO2.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: November 20, 2018
    Assignee: King Abdulaziz University
    Inventors: Sharif Fakhruz Zaman, Muhammad A. Daous, Abdulrahim Ahmad Alzahrani, Lachezar Angelov Petrov, Aibibula Bake, Jamal Touitou, Yahia Abobakor Saleh Alhamed
  • Patent number: 10000448
    Abstract: Methods, systems and kits for preparing carbamates as well as catalysts for preparing the carbamates, are disclosed. The methods for preparing carbamate can include providing a catalyst comprising cerium oxide (CeO2) and at least one metal selected from the group consisting of iron (Fe), manganese (Mn), titanium (Ti), cobalt (Co), aluminum (Al), zinc (Zn), calcium (Ca), tin (Sn), indium (In), and any combination thereof; contacting the catalyst with at least one amine and at least one alcohol to form a mixture; and contacting the mixture with carbon dioxide under conditions sufficient to form the carbamate.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 19, 2018
    Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhenshan Hou, Ran Zhang
  • Patent number: 9993771
    Abstract: Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: June 12, 2018
    Assignee: BASF Corporation
    Inventors: Kenneth E. Voss, Kevin A. Hallstrom, Sanath V. Kumar, Susanne Stiebels, Marius Vaarkamp
  • Patent number: 9981258
    Abstract: A layered catalyst composite for the treatment of exhaust gas emissions, effective to provide lean NOx trap functionality and three-way conversion functionality is described. Layered catalyst composites can comprise catalytic material on a substrate, the catalytic material comprising at least two layers. The first layer comprising rare earth oxide-high surface area refractory metal oxide particles, an alkaline earth metal supported on the rare earth oxide-high surface area refractory metal oxide particles, and at least one first platinum group metal component supported on the rare earth oxide-high surface area refractory metal oxide particles. The second layer comprising a second platinum group metal component supported on a first oxygen storage component (OSC) and/or a first refractory metal oxide support and, optionally, a third platinum group metal supported on a second refractory metal oxide support or a second oxygen storage component.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: May 29, 2018
    Assignee: BASF Corporation
    Inventors: Wen-Mei Xue, Attilio Siani, John K. Hochmuth, Markus Kinne, Stefan Kielbassa
  • Patent number: 9937487
    Abstract: Provided is an exhaust gas control catalyst including: a substrate (21); and a catalyst layer (22) that is arranged on the substrate, in which the catalyst layer (22) includes a palladium region (23) that contains palladium, aluminum oxide, ceria-zirconia solid solution, and a composite oxide of lanthanum, iron, and zirconium, and a rhodium region (24) that is arranged adjacent to the palladium region along a plane direction of the catalyst layer and contains rhodium, aluminum oxide, and ceria-zirconia solid solution.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: April 10, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahide Miura, Isao Chinzei, Tetsuhiro Hirao, Tadashi Suzuki, Toshitaka Tanabe
  • Patent number: 9931615
    Abstract: Disclosed is a catalyst composition for inhibiting the deactivation of a catalyst for purifying exhaust gas from a compressed natural gas combustion system, which contains platinum and palladium as precious metal components. Specifically, a catalyst for purifying exhaust gas from a compressed natural gas vehicle or a static combustion system is configured such that a ceramic substrate is impregnated with palladium-impregnated first alumina, platinum-impregnated second alumina, and a ceria component, wherein the first alumina is further impregnated with a cocatalyst selected from the group consisting of barium, nickel, lanthanum, samarium, and yttrium, thus significantly inhibiting the deactivation of the CNG lean burn engine catalyst.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 3, 2018
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik Han, Seung Chul Na, Eun-seok Kim, Joon-Woo Kim
  • Patent number: 9849441
    Abstract: The exhaust gas-purifying catalyst of the invention contains oxide particles having interdispersed therein A crystallites that are loaded with a noble metal and B crystallites that are not loaded with a noble metal. The A crystallites loaded with a noble metal are composed of an oxide containing at least one of zirconium (Zr) and cerium (Ce). The B crystallites not loaded with a noble metal are composed of a cerium (Ce)-containing oxide which has a higher Ce content (mol %) than the oxide making up the A crystallites. The oxide particles have a specific surface area after 5 hours of heat treatment at 1,150° C. in open air of 30 m2/g or more.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 26, 2017
    Assignee: CATALER CORPORATION
    Inventors: Satoshi Matsueda, Akimasa Hirai, Kenichi Taki
  • Patent number: 9839902
    Abstract: A catalytic converter with excellent OSC performance and NOx purification performance. The converter includes a substrate with a cell structure through which exhaust gas flows, and a catalyst layer formed on a cell wall surface of the substrate. The catalyst layer includes a lower catalyst layer and an upper catalyst layer, the lower catalyst layer being formed on a surface of the substrate, and the upper catalyst layer being formed on a surface of the lower catalyst layer. The upper catalyst layer includes at least a zirconia support with rhodium carried thereon, and two types of ceria-zirconia-based composite oxides with different specific surface areas, each of the ceria-zirconia-based composite oxides having no rhodium carried thereon. The lower catalyst layer includes an alumina support with platinum carried thereon, and a ceria-zirconia-based composite oxide.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: December 12, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromasa Suzuki, Takeru Yoshida, Yoshinori Saito, Mitsuyoshi Okada
  • Patent number: 9815044
    Abstract: A composition and method for producing the same are provided. The composition includes transition metal oxides adhered to a surface of a cerium oxide support, and can additionally include alkali metal or alkaline earth metal promotors. The method includes incipient wetness impregnation of the support with metal salt in solution, and can include impregnation with a metal chelator salt. The composition can be useful as a catalyst for the reduction of noxious gases in combustion exhaust streams. The composition can be of particular use as a component of an automobile catalytic converter, for the specific catalytic reduction of nitrogen oxides to nitrogen gas.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: November 14, 2017
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Northwestern University
    Inventors: Justin M. Notestein, Dario Prieto-Centurion, Paul T. Fanson, Charles Alexander Roberts
  • Patent number: 9737885
    Abstract: Provided is a structure for forming carbon nanofiber, including a base material containing an oxygen ion-conductive oxide, and a metal catalyst that is provided on one surface side of the base material.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: August 22, 2017
    Assignee: FUJIKURA LTD.
    Inventor: Masayasu Inaguma
  • Patent number: 9682365
    Abstract: Provided is a new catalyst that can have heightened purification performance for NOx under lean conditions. Proposed is an exhaust gas purification catalyst composition provided with: a carrier (A) comprising zirconium phosphate; a catalyst active component (a) supported on the carrier (A); a carrier (B) comprising an inorganic oxide porous body; and a catalyst active component (b) supported on the carrier (B).
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: June 20, 2017
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yuki Nagao, Hironori Iwakura, Yunosuke Nakahara, Masato Machida
  • Patent number: 9611773
    Abstract: A zoned catalyzed substrate monolith comprises a first zone and a second zone that are arranged axially in series. The first zone comprises a platinum group metal loaded on a support and a first base metal oxide or a first base metal loaded on an inorganic oxide. The first base metal oxide is iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide, or mixtures thereof. The first base metal is iron, manganese, copper, zinc, nickel, or mixtures thereof. The second zone comprises copper or iron loaded on a zeolite and a second base metal oxide or a second base metal loaded on an inorganic oxide. The second base metal oxide is iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide, or mixtures thereof. The second base metal is iron, manganese, copper, zinc, nickel, or mixtures thereof. The second base metal is different from the first base metal.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: April 4, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Gavin Michael Brown, Andrew Francis Chiffey, Paul Richard Phillips, Daniel Swallow
  • Patent number: 9597661
    Abstract: A catalyzed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalyzed 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 volatilize 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 volatilized PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: March 21, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker
  • Patent number: 9597666
    Abstract: A wash coat is formed by combining platinum group metals (PGM) and an adhesive with a mixture of catalyst support materials according to the relationship (?)RE-Ce—ZrO2+(?)CZMLA+(1????)RE-Al2O3. The RE-Ce—ZrO2 is a commercial material of rare earth elements stabilized ceria zirconia having a weight ratio (?) ranging from 0 to about 0.7; CZMLA is a catalyst support material comprising a core support powder coated with a solid solution and has a weight ratio (?) ranging from about 0.2 to about 1 such that (?+?)?1. RE-Al2O3 is rare earth element stabilized alumina having a weight ratio equal to (1????). The wash coat exhibits a lower activation temperature compared with traditional wash coat formulations by at least 50° C. This wash coat also requires less RE-Ce—ZrO2 oxide and/or less PGM in the formulation for use as an emission control catalyst for gasoline and diesel engines.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: March 21, 2017
    Assignee: Pacific Industrial Development Corporation
    Inventors: Wei Wu, Yunkui Li, Jeffery Lachapelle
  • Patent number: 9592498
    Abstract: A porous inorganic composite oxide containing oxides of aluminum and of cerium and/or zirconium, and, optionally, oxides of one or more dopants selected from transition metals, rare earths, and mixtures thereof, and having a specific surface area, in m2/g, after calcining at 1100° C. for 5 hours, of ?0.8235[Al]+11.157 and a total pore volume, in cm3/g, after calcining at 900° C. for 2 hours, of ?0.0097[Al]+0.0647, wherein [Al] is the amount of oxides of aluminum, expressed as pbw Al2O3 per 100 pbw of the composite oxide; a catalyst containing one or more noble metals dispersed on the porous inorganic composite oxide; and a method for making the porous inorganic composite oxide.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: March 14, 2017
    Assignee: Rhodia Operations
    Inventors: Olivier Larcher, Francis Francis, Thomas English, Simon Ifrah, Andrew Polli
  • Patent number: 9580309
    Abstract: The present invention provides an ammonia oxidation/decomposition catalyst including a support composed of an oxidizable and reducible metal oxide and a catalytically active metal supported thereon. By bringing the ammonia oxidation/decomposition catalyst including a support composed of an oxidizable and reducible metal oxide and a catalytically active metal supported thereon into contact with ammonia and air at room temperature, the support in a reduced state reacts with oxygen to generate oxidation heat, and the temperature of the catalyst layer is increased in a moment. Once the temperature of the catalyst layer is increased to a temperature at which ammonia and oxygen react with each other, the ammonia oxidation reaction proceeds autonomously after that. The heat generated in this exothermic reaction is used in the course of decomposing ammonia in the presence of the catalytically active metal, thereby producing hydrogen.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 28, 2017
    Assignee: Hitachi Zosen Corporation
    Inventors: Sadao Araki, Susumu Hikazudani, Takuma Mori, Akira Taniguchi
  • Patent number: 9579633
    Abstract: A catalytic converter with excellent OSC performance and NOx purification performance. The catalytic converter includes a substrate with a cell structure and catalyst layer. The catalyst layer includes lower and upper catalyst layers. The upper catalyst layer includes a zirconia compound support with rhodium carried thereon that contains zirconia, lanthanum oxide, and yttrium oxide; an alumina compound without rhodium carried thereon that contains alumina and lanthanum oxide; and a ceria-zirconia-based composite oxide containing ceria, zirconia, lanthanum oxide, and neodymium oxide.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: February 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromasa Suzuki, Takeru Yoshida, Yoshinori Saito, Mitsuyoshi Okada
  • Patent number: 9566566
    Abstract: A hydrogen production catalyst used for generating hydrogen by splitting water, the catalyst comprising a composite metal oxide of cerium oxide and praseodymium oxide.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: February 14, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Kiyoshi Yamazaki
  • Patent number: 9533299
    Abstract: The present disclosure relates to a substrate comprising nanomaterials for treatment of gases, washcoats for use in preparing such a substrate, and methods of preparation of the nanomaterials and the substrate comprising the nanomaterials. More specifically, the present disclosure relates to a substrate comprising nanomaterial for three-way catalytic converters for treatment of exhaust gases.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: January 3, 2017
    Assignee: SDCmaterials, Inc.
    Inventors: Xiwang Qi, Maximilian A. Biberger
  • Patent number: 9511352
    Abstract: The present disclosure relates to a substrate comprising nanomaterials for treatment of gases, washcoats for use in preparing such a substrate, and methods of preparation of the nanomaterials and the substrate comprising the nanomaterials. More specifically, the present disclosure relates to a substrate comprising nanomaterial for three-way catalytic converters for treatment of exhaust gases.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: December 6, 2016
    Assignee: SDCmaterials, Inc.
    Inventors: Xiwang Qi, Maximilian A. Biberger
  • Patent number: 9511353
    Abstract: The effect of firing (calcination) cycle on metallic substrates in ZPGM catalyst systems is disclosed. ZPGM catalyst samples with washcoat and overcoat are separately fired in a normal, slow and fast firing cycles to determine the optimal firing cycling that may provide an enhanced catalyst performance, as well as the minimal loss of washcoat adhesion from the samples.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: December 6, 2016
    Assignee: Clean Diesel Technologies, Inc. (CDTI)
    Inventor: Zahra Nazarpoor
  • Patent number: 9468908
    Abstract: Disclosed are catalysts comprised of platinum and rhodium on a support selected from the group of zirconia, stabilized (doped) zirconia, zirconia-metal oxide composites, and mixtures thereof, wherein the outer surfaces of the support are selected from the group of zirconia, stabilized zirconia, and mixtures thereof. More particularly, the supported catalysts comprise platinum and rhodium, wherein the molar ratio of platinum to rhodium is in the range of about 3:1 to about 1:2. The average pore diameter of the catalyst supports is in the range of about 5 nm to about 70 nm and the surface area is in the range of about 15 m2/g to about 200 m2/g. Also disclosed are methods for the hydrodeoxygenation of carboxylic acids, mono- and/or di-lactones thereof having at least one hydroxyl group on the backbone thereof to corresponding acids where the backbone hydroxyl group has been reduced in the presence of the catalyst.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: October 18, 2016
    Assignee: Renovia Inc.
    Inventors: George Fredrick Salem, Guang Zhu, Alfred Gerhard Hagemeyer, Eric L. Dias
  • Patent number: 9433899
    Abstract: The invention relates to a method for removing carbon monoxide and hydrocarbons from the exhaust gas of lean-burn internal combustion engines, said exhaust gas being passed over a catalyst which contains platinum supported on one or more refractory supporting materials, pure cerium oxide, and optionally an additional noble metal selected from the group consisting of platinum, palladium and rhodium, wherein the pure cerium oxide is in close contact with the noble metal.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 6, 2016
    Assignee: UMICORE AG & CO. KG
    Inventors: Ruediger Hoyer, Anke Schuler, Stefan Franoschek, Thomas R. Pauly, Gerald Jeske