Patents Examined by Cam N. Nguyen
  • Patent number: 11980868
    Abstract: The present invention relates to a method for the treatment of an exhaust gas comprising carbon monoxide (CO) and/or one or more volatile organic compounds (VOCs) using a PGM-free catalyst article comprising a mixed oxide of Mn, Cu, Mg, Al and La. The present invention also relates to an HVAC system comprising a PGM-free catalyst article.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: May 14, 2024
    Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Silvia Alcove Clave, Kevin Doura, Joseph Fedeyko
  • Patent number: 11980871
    Abstract: The present invention relates to a catalyst article for the exhaust system of a natural gas engine with improved sulphur and/or water tolerance. The catalyst article comprises a doped palladium-on-alumina catalyst, wherein the palladium-on-alumina catalyst is doped with manganese and/or zinc. The invention further relates to an exhaust gas treatment system, a natural gas combustion engine and to a method for the treatment of an exhaust gas from a natural gas combustion engine.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: May 14, 2024
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Moyahabo Hellen Chuma, Glenn Jones, Jane Ngima Mugo, Agnes Raj
  • Patent number: 11982218
    Abstract: An oxidation catalyst composite for abatement of exhaust gas emissions from a lean burn engine is provided, the catalyst composite including a carrier substrate having a length, an inlet end and an outlet end, and an oxidation catalyst material coated on the carrier substrate. The oxidation catalyst material can include a first layer and a second layer. The first layer can include a first oxygen storage component that includes ceria and is impregnated with a palladium (Pd) component and a second component including one or more of magnesium (Mg), rhodium (Rh), and platinum (Pt). The second layer can include a refractory metal oxide component impregnated with platinum (Pt) and palladium (Pd), wherein the ratio of Pt to Pd is in the range of about 0:10 to about 10:0.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: May 14, 2024
    Inventors: Shiang Sung, Patrick William McCanty, Markus Koegel, Susanne Stiebels
  • Patent number: 11980876
    Abstract: A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: May 14, 2024
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Mohamed Shaker Sayed Adam, Amel Musa Taha, Mohamed M. Makhlouf
  • Patent number: 11980869
    Abstract: This invention relates to an aqueous dispersion of particles, the dispersion having a particle content of 10-70 wt %, and the particles comprising, on an oxide basis: (a) 10-98 wt % in total of ZrO2+HfO2, and (b) 2-90 wt % in total of Al2O3, CeO2, La2O3, Nd2O3, Pr6O11, Y2O3, or a transition metal oxide, wherein the dispersion has a Z-average particle size of 100-350 nm and the particles have a crystallite size of 1-9 nm. The invention also relates to a substrate coated with the aqueous dispersion of particles.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 14, 2024
    Assignee: Magnesium Elektron Limited
    Inventors: David Alastair Scapens, Deborah Jayne Harris
  • Patent number: 11975314
    Abstract: Structures, catalysts, and reactors suitable for use for a variety of applications, including gas-to-liquid and coal-to-liquid processes and methods of forming the structures, catalysts, and reactors are disclosed. The catalyst material can be deposited onto an inner wall of a microtubular reactor and/or onto porous support structures using atomic layer deposition techniques.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: May 7, 2024
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Staci A. Moulton, Alan W. Weimer
  • Patent number: 11969715
    Abstract: A catalyst for direct decomposition removal of NOx from an exhaust gas stream to N2 and O2, the catalyst comprising a dual dispersed supported metal oxide material, which comprises MOx-CuOx dispersed on a CO3O4 spinel oxide support, wherein M is selected from the group consisting of Zn, Ce, Mg, Tb, and Gd. The dual dispersed supported metal oxide catalysts have good activity and selectivity for N2.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 30, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Torin C. Peck, Benjamin A. Grayson, Charles A. Roberts
  • Patent number: 11969712
    Abstract: A catalyst for purification of exhaust gas in which Pd-based nanoparticles and ceria nanoparticles are supported on a composite metal oxide support containing alumina, ceria, and zirconia, wherein a molar ratio (Ce/Pd) of Ce and Pd supported on the support is 1 to 8, a proximity ? between Pd and Ce is 0.15 to 0.50, wherein the proximity ? is determined, based on Pd and Ce distribution maps in an element mapping image of energy dispersive X-ray analysis, by the following formula (1): ? = ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( ( I ? ( i , j ) - I ave ) ? ( T ? ( i , j ) - T ave ) ) ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( I ? ( i , j ) - I ave ) 2 - ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( T ? ( i , j ) - T ave ) 2 , ( 1 ) a Pd dispersity after a heat-resistance test at 1050° C. for 25 hours is 0.8% or more.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: April 30, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Kumatani, Akira Morikawa, Masaoki Iwasaki, Miho Hatanaka, Taizo Yoshinaga, Masahide Miura, Takahiro Hayashi
  • Patent number: 11969720
    Abstract: A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: April 30, 2024
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Mohamed Shaker Sayed Adam, Amel Musa Taha, Mohamed M. Makhlouf
  • Patent number: 11964255
    Abstract: Disclosed are a mixed oxide composition based on zirconium and cerium exhibiting a high reducibility, the process for preparing it and its use in the field of catalysis.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 23, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Simon Ifrah, Laure Jeanne Simone Bisson, Benjamin Faure, Rui Miguel Jorge Coelho Marques, Wei Li, Ling Zhu
  • Patent number: 11964264
    Abstract: A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: April 23, 2024
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Mohamed Shaker Sayed Adam, Amel Musa Taha, Mohamed M. Makhlouf
  • Patent number: 11958765
    Abstract: Fluid purification systems employing a monolithic composite photocatalyst to remove volatile organic compounds (VOCs) and/or pathogenic organisms are disclosed. Pairing of systems tuned to abate each of these materials are discussed in different configurations such as series and parallel, as well as combining systems to target both materials simultaneously. System configurations that allow a portion of the fluid stream to be purified are also disclosed as are configurations that allow regeneration of the photocatalyst. These features may be augmented by sensors that allow closed loop control of bypass and regeneration cycles in the systems.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: April 16, 2024
    Assignee: Sonata Scientific LLC
    Inventors: Jeffrey F. Roeder, Trevor E. James, Melissa A. Petruska, Peter C. Van Buskirk, Robert T. Henderson, III
  • Patent number: 11946405
    Abstract: The present invention relates to a four-way conversion catalyst for the treatment of an exhaust gas stream of a gasoline engine, the catalyst comprising a porous wall-flow filter substrate comprising an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of passages defined by porous internal walls of the porous wallflow filter substrate, wherein the plurality of passages comprise inlet passages having an open inlet end and a closed outlet end, and outlet passages having a closed inlet end and an open outlet end, wherein the interface between the passages and the porous internal walls is defined by the surface of the internal walls; wherein the porous internal walls comprise pores which comprise an oxidic component comprising a first refractory metal oxide, said first refractory metal oxide comprising aluminum, said oxidic component having a platinum group metal content in the range of from 0 to 0.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 2, 2024
    Assignee: BASF Corporation
    Inventors: David Schlereth, Hao Li, Stephen Siemund, Thomas Schmitz, Attilio Siani, Florian Waltz
  • Patent number: 11925922
    Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: March 12, 2024
    Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Yong-Tae Kim, Jaeik Kwak, Hyoung Seop Kim, Sujung Son, Sang-Mun Jung
  • Patent number: 11913367
    Abstract: There is provided an exhaust gas purifying catalyst including a substrate and catalyst portions. The substrate includes an inflow-side cells, outflow-side cells, and porous partition walls, each partition wall separating the inflow-side cell from the outflow-side cell. The catalyst portion includes: (group A) first catalyst portions, each first catalyst portion being provided on a surface of the partition wall that faces the inflow-side cell on an upstream side in an exhaust gas flow direction; and (group B) second catalyst portions being provided on a surface of the partition wall that faces the outflow-side cell on a downstream side in the exhaust gas flow direction. Each catalyst portion of one of group A and group B includes at least one oxidizing catalyst layer and at least one reducing catalyst layer, and each catalyst portion of the other of group A and group B includes at least one oxidizing catalyst layer and/or at least one reducing catalyst layer.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: February 27, 2024
    Assignees: Mitsui Mining & Smelting Co., Ltd., HONDA MOTOR CO., LTD.
    Inventors: Hiroki Kurihara, Yusuke Nagai, Shingo Akita, Yoshinori Endo, Takeshi Mori, Takayuki Watanabe, Tomoko Tsuyama
  • Patent number: 11890609
    Abstract: Honeycomb bodies and methods for treating a honeycomb bodies that include a skin surrounding a matrix of cells, the skin and the matrix of cells comprising a porous inorganic material. Methods include applying a buffer solution to only the porous inorganic material of the skin and coating the porous inorganic material of the skin with an oxide slurry. The oxide slurry includes an oxide or a precursor of the oxide configured to increase the isostatic strength of the honeycomb body. After treatment, the honeycomb body may be dried.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: February 6, 2024
    Assignee: Corning Incorporated
    Inventors: Jacob George, Mallanagouda Dyamanagouda Patil, Elizabeth Margaret Wheeler
  • Patent number: 11890607
    Abstract: Methods for limiting bleed-through of aqueous catalyst solutions in ceramic articles are described herein. The methods include applying a hydrophobic cellulose derivative, such as ethylcellulose, to an exterior surface of a fired porous ceramic article. The aqueous catalyst solution is applied to the fired porous ceramic article, such that the hydrophobic cellulose derivative limits bleed-through of the aqueous catalyst solution through at least a portion of the ceramic article. Ceramic articles with skins that limit bleed-through of aqueous catalyst solutions are also described herein.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 6, 2024
    Assignee: Corning Incorporated
    Inventors: Mickaël Berrebi, David Henry
  • Patent number: 11883797
    Abstract: An exhaust gas purification catalyst device having a substrate, a first catalyst coating layer on the substrate, and a second catalyst coating layer on the first catalyst coating layer. The first catalyst coating layer includes inorganic oxide particles, palladium carried on the inorganic oxide particles, and a barium compound. The second catalyst coating layer includes alumina particles and rhodium carried by the alumina particles. The ratio (MBa/MRh) between the mass (MBa) of barium in the first catalyst coating layer and the mass (MRh) of rhodium in the second catalyst coating layer is 5.0-60.0 inclusive.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: January 30, 2024
    Assignee: CATALER CORPORATION
    Inventors: Tatsuya Ohashi, Kohei Takasaki
  • Patent number: 11878287
    Abstract: This invention relates to development of novel Cu-based nanocatalysts synthesized via one-pot solution combustion synthesis for CO2 hydrogenation to methanol. The novel Cu-based catalyst has exceptional activity for CO2 hydrogenation with high methanol selectivity in the reaction temperature range between 250° C.-350° C. The novel catalyst also exhibits excellent resilience to deactivation due to sintering.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: January 23, 2024
    Assignee: QATAR UNIVERSITY
    Inventors: Sardar Ali, Dharmesh Kumar, Muftah El-Naas
  • Patent number: 11872541
    Abstract: An embodiment ceria-alumina support (CeO2—Al2O3 support) includes a nano-ceria having a shape of a polygonal bipyramid or a truncated polygonal bipyramid supported on alumina. An embodiment noble metal catalyst for treating exhaust gas includes a noble metal deposited on a ceria-alumina support (CeO2—Al2O3 support) that includes a nano-ceria having a shape of a polygonal bipyramid or a truncated polygonal bipyramid supported on alumina. An embodiment method for affecting resistance to sulfur-poisoning of a noble metal catalyst through structural transformation of nano-ceria supported on alumina includes performing a hydrothermal treatment of ceria supported on ?-alumina.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: January 16, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Hyunjoo Lee, Beom-Sik Kim, Yoon Sang Nam