Patents Examined by Cam N. Nguyen
  • Nitrogen oxides and hydrocarbon storage catalyst and methods of using the same
    Patent number: 10953366
    Abstract: A nitrogen oxides (NOx) and hydrocarbon (HC) storage catalyst for treating an exhaust gas flow is provided. The NOx and HC storage catalyst includes (a) a zeolite, (b) noble metal atoms, and (c) a metal oxide, a non-metal oxide, or a combination thereof. One or more of the noble metal atoms is present in a complex with the metal oxide, the non-metal oxide or a combination thereof. The complex is dispersed within a cage of the zeolite. Methods of preparing the NOx and HC storage catalyst and methods of using the NOx and HC storage catalyst for treating an exhaust gas stream flowing from a vehicle internal combustion engine during a period following a cold-start of the engine are also provided.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 23, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ming Yang, Lei Wang, Shouxian Ren, Wei Li
  • Oxidation catalyst, catalyst support structure, method of producing oxidation catalyst, and method of producing catalyst support structure
    Patent number: 10946336
    Abstract: An oxidation catalyst includes cerium dioxide particles and a metal oxide. The cerium dioxide particles contain an ancillary component that is at least one of lanthanum, aluminum, and iron. The metal oxide contains iron and manganese and is held by the cerium dioxide particles.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 16, 2021
    Assignee: NGK Insulators, Ltd.
    Inventor: Yunie Izumi
  • Perovskite oxides for thermochemical conversion of carbon dioxide
    Patent number: 10946362
    Abstract: Perovskite oxides and catalysts containing the perovskite oxides are provided for the thermochemical conversion of carbon dioxide to carbon monoxide. The perovskite oxides can exhibit large carbon monoxide production rates and/or low carbon monoxide production onset temperatures as compared to existing materials. Reactors are provided containing the perovskite oxides and catalysts, as well as methods of use thereof for the thermochemical conversion of carbon dioxide to carbon monoxide.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 16, 2021
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: John N. Kuhn, Debtanu Maiti, Yolanda A. Daza, Bryan J. Hare, Adela E. Ramos, Venkat R. Bhethanabotla
  • Method for preparing a selective hydrogenation catalyst
    Patent number: 10946370
    Abstract: A process for the preparation of a catalyst comprising palladium, a porous support with a specific surface area in the range 140 to 250 m2/g, said catalyst being prepared by a process comprising the following steps: a) preparing a colloidal solution of palladium oxide or palladium hydroxide in an aqueous phase; b) adding said solution obtained from step a) to said porous support at a flow rate in the range 1 to 20 litre(s)/hour; said porous support being contained in a rotary impregnation device functioning at a rotational speed in the range 10 to 20 rpm; c) optionally, submitting the impregnated porous support obtained from step b) to a maturation; d) drying the catalyst precursor obtained from step b) or c); e) calcining the catalyst precursor obtained from step d).
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 16, 2021
    Assignee: IFP Energies nouvelles
    Inventors: Carine Petit-Clair, Priscilla Avenier, Michel Martin, Malika Boualleg
  • Single brick SCR/ASC/PNA/DOC close-coupled catalyst
    Patent number: 10926221
    Abstract: A catalyst article including a substrate with an inlet side and an outlet side, a first zone and a second zone, where the first zone includes a passive NOx adsorber (PNA), and an ammonia slip catalyst (ASC) comprising a platinum group metal on a support and a first SCR catalyst; where the second zone includes a catalyst selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); and where the first zone is located upstream of the second zone. The first zone may include a bottom layer with a blend of: (1) the platinum group metal on a support and (2) the first SCR catalyst; and a top layer with a second SCR catalyst, the top layer located over the bottom layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: February 23, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Michael Fedeyko, Dongxia Liu, Jing Lu
  • Gold-based catalyst for oxidative esterification of aldehydes to carboxylic acid esters
    Patent number: 10906025
    Abstract: The present invention relates to novel catalysts for oxidative esterification, by means of which, for example, (meth)acrolein can be converted to methyl (meth)acrylate. The catalysts of the invention are especially notable for high mechanical and chemical stability even over very long periods. This especially relates to an improvement in the catalyst service life, activity and selectivity over prior art catalysts which lose activity and/or selectivity relatively quickly in continuous operation in media having even a small water content.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 2, 2021
    Assignee: Roehm GmbH
    Inventors: Alexander Lygin, Steffen Krill, Matthias Groemping, Andreas Tepperis
  • Multilayered metal nano and micron particles
    Patent number: 10894302
    Abstract: A sintering powder, wherein a least a portion of the particles making up the sintering powder comprise: a core comprising a first material; and a shell at least partially coating the core, the shell comprising a second material having a lower oxidation potential than the first material.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 19, 2021
    Assignee: Alpha Assembly Solutions Inc.
    Inventors: Shamik Ghoshal, Remya Chandran, Sutapa Mukherjee, Siuli Sarkar, Ranjit Pandher, Bawa Singh
  • Titania-doped zirconia as platinum group metal support in catalysts for treatment of combustion engine exhausts streams
    Patent number: 10883402
    Abstract: Composites of mixed metal oxides for an exhaust gas purifying catalyst comprise the following co-precipitated materials by weight of the composite: zirconia in an amount in the range of 55-99%; titania in an amount in the range of 1-25%; a promoter and/or a stabilizer in an amount in the range of 0-20%. These composites are effective as supports for platinum group metals (PGMs), in particular rhodium.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: January 5, 2021
    Assignee: BASF Corporation
    Inventors: Xiaoming Wang, Michel Deeba, Xiaolai Zheng, Sven Titlbach, Andreas Sundermann, Stephan Andreas Schunk
  • Catalyst for treating an exhaust gas, an exhaust system and a method
    Patent number: 10882031
    Abstract: A catalyst for treating an exhaust gas comprising SO2, NOx and elemental mercury in the presence of a nitrogenous reductant comprises a composition containing oxides of: (i) Molybdenum (Mo) and optionally Tungsten (W); and (ii) Vanadium (V); and (iii) Titanium (Ti); and (iv) Phosphorus (P), wherein, with respect to the total metal atoms in the composition, the composition comprises: (i) Mo in an amount of less than 2 at. %, and optionally up to 9 at. % W; (ii) from 2.5 to 12 at. % V; (iii) from 85 to 96 at. % Ti, and wherein the composition comprises (iv) P in an atomic ratio to the sum of atoms of Mo, W and V of from 1:2 to 3:2. The values expressed must total 100%.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 5, 2021
    Inventors: Silvia Alcove Clave, Paul Andersen, Maria Brandmair, Manop Huber, Michael Nash, David Repp
  • Hydrocarbon trap catalyst
    Patent number: 10850264
    Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L extending between substrate ends a and b and a first washcoat zone, which comprises a) a zeolite, b) a redox active base metal compound and c) palladium in oxidic or metallic state which is fixed to the surface of a support oxide.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 1, 2020
    Assignee: UMICORE AG & CO. KG
    Inventors: John Nunan, David Moser, Chad Alltizer
  • Oligomerization catalyst and process for the production thereof
    Patent number: 10850261
    Abstract: The invention relates to an oligomerization catalyst comprising nickel oxide and silica-alumina support material and to a process for oligomerization of C3- to C6-olefins using the oligomerization catalyst.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: December 1, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Fabian Nadolny, Stephan Peitz, Guido Stochniol, Helene Reeker, Angela Heykamp, Reiner Bukohl, Robert Franke, Thomas Quandt
  • Exhaust gas purification catalyst
    Patent number: 10850269
    Abstract: The exemplary embodiments relate to an exhaust gas purification catalyst, in which exhaust gas purification performance is secured and an increase in pressure loss is suppressed, which is an exhaust gas purification catalyst, in which a porous filter wall of a substrate having a wall-flow structure is coated with a catalyst material containing an OSC material having oxygen storage capacity and a catalyst metal, wherein the density of percolation paths having percolation path diameters of 4 ?m or more per unit area inside of the filter wall coated with the catalyst material is 100 paths/mm2 to 1000 paths/mm2.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 1, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Atsushi Tanaka, Takeru Yoshida, Naoto Miyoshi, Akemi Sato, Yasutaka Nomura, Satoru Inoda
  • Hydrocarbon trap catalyst
    Patent number: 10828623
    Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L extending between substrate ends a and b and two washcoat zones A and B, wherein washcoat zone A comprises a redox active base metal and palladium supported on a zeolite and/or refractory oxide support and extends starting from substrate end a over a part of the length L, and washcoat zone B comprises the same components as washcoat A and an additional amount of palladium and extends from substrate end b over a part of the length L, wherein L=LA+LB, wherein LA is the length of washcoat zone A and LB is the length of substrate length B.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: November 10, 2020
    Assignee: UMICORE AG & CO. KG
    Inventors: John Nunan, David Moser, Chad Alltizer
  • Honeycomb filter
    Patent number: 10821420
    Abstract: Disclosed is a honeycomb filter for collecting fine particles that includes a wall portion formed from a base material containing ceria-zirconia composite oxide and an inorganic binder. In a pore diameter distribution in which a pore diameter and a log differential pore volume measured through mercury porosimetry are respectively represented by a horizontal axis and a vertical axis, the wall portion has a peak in a range in which the pore diameter is greater than or equal to 0.01 ?m and less than 1 ?m and a peak in a range in which the pore diameter is greater than or equal to 1 ?m and less than or equal to 50 ?m.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 3, 2020
    Assignee: IBIDEN CO., LTD.
    Inventor: Shinnosuke Goto
  • Desulfurizing agent for gases and gas desulfurization method
    Patent number: 10814312
    Abstract: Provided are a high-performance desulfurizing agent for gases and a gas desulfurization method that provide a high desulfurization performance even at low temperatures and can maintain its desulfurization performance for a long period of time. The desulfurizing agent is characterized in that it includes a zinc oxide, an aluminum oxide and copper, the agent further including nickel by from 1.0 mass % to 10 mass % and ruthenium by from 0.1 mass % to 1.0 mass %. The gas desulfurization method is characterized in that the desulfurizing agent is brought into contact with the gas in the coexistent of hydrogen, thus decomposing/removing sulfur compound contained in the gas.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: October 27, 2020
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Shimpei Norioka, Susumu Takami, Hirofumi Ohtsuka, Takenori Hirano
  • Denitration catalyst and denitration device
    Patent number: 10814309
    Abstract: A denitration catalyst for removing nitrogen oxide in an exhaust gas is represented by the following chemical formula: Ba3Y(4-x)AxO9, wherein A is an element selected from the group consisting of Bi, Sn, Ga, Mn, Ti, and Al; and X is 0.4 or more and 2 or less. A denitration device has the denitration catalyst for removing nitrogen oxide in an exhaust gas discharged from an exhaust gas generation source including a gas engine, a gas turbine, a melting furnace, or a boiler.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Nobuki Oka, Toshinobu Yasutake, Noriko Watari, Hidemasa Kakigami, Syuji Fujii, Akihiro Sawata
  • Exhaust gas purifying catalyst
    Patent number: 10814311
    Abstract: An exhaust gas purifying catalyst includes a catalyst layer formed inside a partition wall of a base material having a wall flow structure, and has an upstream-side and a downstream-side catalyst layer. The upstream-side catalyst layer includes Rh and a Ce-containing oxide, and the downstream-side catalyst layer includes Pd and a Ce-containing oxide. The mass of the catalyst layer per unit volume of the base material is from 105 g/L to 210 g/L, the mass of the upstream-side catalyst layer per unit volume in an upstream-side portion is from 50 g/L to 100 g/L, the mass of the downstream-side catalyst layer per unit volume in a downstream-side portion is from 100 g/L to 150 g/L, the Ce amount per unit volume of the base material is from 14 g/L to 35 g/L, and the Ce amount per unit volume in the upstream-side portion is from 5 g/L to 20 g/L.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 27, 2020
    Assignee: CATALER CORPORATION
    Inventors: Sho Hoshino, Yuki Takesue, Ryota Onoe, Taku Miura, Takaya Ota
  • Exhaust gas purification filter
    Patent number: 10807032
    Abstract: An exhaust gas purification filter that suppresses an increase in pressure loss associated with the formation of a catalyst layer and is excellent in PM burning quality. The exhaust gas purification filter includes a base and a catalyst layer provided on the base. The catalyst layer contains a carrier and a metal catalyst. Large pores having a circle equivalent diameter greater than 5 ?m occupy, when an area of the catalyst layer is 100% in an electron microscope observation image of a cross section of the catalyst layer, 45% or more of the area.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: October 20, 2020
    Assignee: CATALER CORPORATION
    Inventor: Eriko Tanaka
  • ASC/DEC with rear-concentrated exotherm generation
    Patent number: 10807040
    Abstract: A catalyst article including a substrate with an inlet side and an outlet side, a first zone and a second zone, where the first zone includes an ammonia slip catalyst (ASC) comprising a platinum group metal on a support and a first SCR catalyst; where the second zone includes a catalyst selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); and where the first zone is located upstream of the second zone. The first zone may include a bottom layer with a blend of: (1) the platinum group metal on a support and (2) the first SCR catalyst; and a top layer comprising a second SCR catalyst, the top layer located over the bottom layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Michael Fedeyko, Jing Lu
  • Catalyst article for use in an emission treatment system
    Patent number: 10799832
    Abstract: A catalyst article for treating a flow of a combustion exhaust gas comprises: a catalytically active substrate comprising one or more channels extending along an axial length thereof through which, in use, a combustion exhaust gas flows, the one or more channels having a first surface for contacting a flow of combustion exhaust gas; wherein the substrate is formed of an extruded vanadium-containing SCR catalyst material, wherein a first layer is provided on at least a portion of said first surface, wherein the first layer comprises an ammonia slip catalyst composition comprising one or more platinum group metals supported on titania, a silica-titania mixed oxide, a Ce—Zr mixed oxide, or a mixture thereof, and a second layer is provided on at least a portion of the first layer and comprises an SCR catalyst composition.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Heledd Howells, David Micallef, Andrew Newman, Neil Greenham