Patents Examined by Cam N. Nguyen
  • Patent number: 10967362
    Abstract: A catalyst for purification of exhaust gas containing a phosphorus compound includes: a lower catalyst layer containing at least one of noble metal provided on a refractory three-dimensional structure; and an upper catalyst layer at an inflow side of exhaust gas and an upper catalyst layer at an outflow side of exhaust gas provided on a surface of the lower catalyst layer. The upper catalyst layer at the inflow side and the upper catalyst layer at the outflow side have different concentrations of noble metal. The catalyst has an intermediate zone with a length of 3 to 23% of the overall length of the refractory three-dimensional structure provided between the upper catalyst layer at the inflow side and the upper catalyst layer at the outflow side. The intermediate zone starts from a position 10 to 38% from an end face of the catalyst at the inflow side of exhaust gas.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: April 6, 2021
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Hirotaka Kuno, Masashi Nakashima, Yuzo Hamada, Masanori Ikeda
  • Patent number: 10968802
    Abstract: The present invention relates to a method for preventing an SCR catalyst from being contaminated with platinum group metal in an emission control system comprising, upstream of the SCR catalyst, a catalyst that contains platinum group metal, characterized in that a material zone containing a mixture of aluminum oxide and cerium oxide is located upstream of the SCR catalyst.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: April 6, 2021
    Assignee: UMICORE AG & CO. KG
    Inventors: Christoph Hengst, Marco Lopez
  • Patent number: 10960389
    Abstract: An exhaust gas purification catalyst of the present invention is provided with a base 10 and a catalyst coat layer 30. The catalyst coat layer is provided with Rh and Pd as noble metal catalysts. Herein Rh is disposed in a first-stage upper layer A and a second-stage upper layer C, and Pd is disposed in the first-stage upper layer A and a first-stage lower layer B, and in a second-stage lower layer D. A mass ratio (APd/ARh) of Pd to Rh, disposed in first-stage upper layer A is 0.5?(APd/ARh)?3.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 30, 2021
    Assignee: CATALER CORPORATION
    Inventors: Yuki Takesue, Kyosuke Murakami, Ryota Onoe
  • Patent number: 10960384
    Abstract: The present invention relates to a dehydrogenation catalyst in which a platinum-group metal, an assistant metal, and an alkali metal or alkaline earth metal component are supported on a carrier, wherein the molar ratio of platinum to the assistant metal is 0.5 to 1.49, and the catalyst has an acidity amount of 20 to 150 ?mol KOH/g catalyst when it is titrated with KOH. The dehydrogenation catalyst according to the present invention may prevent coke formation from increasing rapidly when the hydrogen/hydrocarbon ratio in a dehydrogenation reaction is reduced, thereby increasing the productivity of the process. Accordingly, it makes it possible to operate the process under a condition in which the hydrogen/hydrocarbon ratio in a dehydrogenation reaction is reduced, thereby improving the economy of the process.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 30, 2021
    Assignee: HYOSUNG CHEMICAL CORPORATION
    Inventors: Bu Young Jo, Won Il Kim
  • Patent number: 10961120
    Abstract: A method for forming nanoparticles includes forming a stack of alternating layers including a first material disposed between a second material. The stack of alternating layers is patterned to form pillars. A dielectric layer is conformally deposited over the pillars. The pillars are annealed in an oxygen environment to modify a shape of the first material of the alternating layers. The dielectric layer and the second material are etched selectively to the first material to form nanoparticles from the first material.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: March 30, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qing Cao, Kangguo Cheng, Juntao Li
  • Patent number: 10961631
    Abstract: A method for making a metal oxyhydroxide electrocatalytic material comprises titrating a precursor solution with a (bi)carbonate salt, the precursor solution comprising a first metal salt and a solvent, wherein the titration induces reactions between the (bi)carbonate salt and the first metal salt to provide first metal carbonate species in the titrated precursor solution; and exposing the titrated precursor solution to microwave radiation to decompose the first metal carbonate species to form the metal oxyhydroxide electrocatalytic material and carbon dioxide. Mixed metal oxyhydroxide electrocatalytic materials such as nickel-iron oxyhydroxide may be formed. Also provided are the materials themselves, electrocatalytic systems comprising the materials, and methods of using the materials and systems.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 30, 2021
    Assignee: University of Kansas
    Inventors: Kevin C. Leonard, Joseph M. Barforoush, Tess E. Seuferling, Kelly R. Song
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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