Zeolite Patents (Class 423/239.2)
  • Patent number: 11931729
    Abstract: The present disclosure provides a method of forming a selective catalytic reduction (SCR) catalyst, the method including receiving a first iron-promoted zeolite having a first iron content, and treating the iron-promoted zeolite with additional iron in an ion exchange step to form a second iron-promoted zeolite with a second iron content, the second iron content being higher than the first iron content. A selective catalytic reduction (SCR) catalyst composition including an ironpromoted zeolite having at least about 6 weight percent iron, based on total weight of the ironpromoted zeolite, wherein the iron content of the zeolite was added to the zeolite in at least two separate steps is also provided herein.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 19, 2024
    Assignee: BASF CORPORATION
    Inventors: Jeff H. Yang, Stanley A. Roth, Robin M. Huff
  • Patent number: 11673128
    Abstract: A method for preparing a molecular sieve SCR (selective catalytic reduction) catalyst and a prepared catalyst therethrough. In the method, several molecular sieves are mixed and modified by transition metal or rare-earth metal via ion exchange, then loaded Fe by equivalent-volume impregnation, and loaded Cu by one or more liquid ion exchange. This present invention, combined with several techniques, such as modification of stable molecular sieve by transition and rare-earth metal, Fe loading by equivalent-volume impregnation and Cu loading by one or more liquid ion exchange, and after through stable and effective modification and loading control, the obtained catalyst material is coated on a carrier substrate via size mixing and coating process to be prepared into an integral catalyst.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 13, 2023
    Assignee: Sinocat Environmental Technology Co., Ltd.
    Inventors: Zhimin Liu, Xi Feng, Yanhua Zhang, Dong Zeng, Jie Wen, Ganxue Wu, Ruifang Wang, Kuan Wei, Yun Li, Qizhang Chen, Yaoqiang Chen
  • Patent number: 11578629
    Abstract: A porous composite includes a porous base material, and a porous collection layer. The collection layer is provided on the base material. The collection layer contains praseodymium oxide.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: February 14, 2023
    Assignee: NGK Insulators, Ltd.
    Inventors: Shogo Takeno, Kousuke Ujihara, Kenji Morimoto
  • Patent number: 11565943
    Abstract: A method is disclosed making a molecular of TON framework type having unique properties. The method uses 1,3,4-trimethylimidazolium cations as a structure directing agent and a combined source of silicon and aluminum selected from alumina-coated silica and aluminosilicate zeolites. The obtained molecular sieve can be used in processes for dewaxing paraffinic hydrocarbon feedstocks.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: January 31, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Joel Edward Schmidt, Adeola Florence Ojo
  • Patent number: 11401850
    Abstract: To provide an exhaust gas purification catalyst that is less likely to cause an increase in pressure loss, even a large amount of zeolite-based SCR catalyst is used to improve NOx purification capability. The exhaust gas purification catalyst includes a DPF provided with zeolite having a primary particle size equal to or less than 0.5 ?m. In addition, it is preferable that 50% particle size of the zeolite measured by dynamic light scattering is equal to or less than 2.0 ?m, and further, it is preferable that the 90% particle size of the zeolite is equal to or less than 2.5 ?m.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 2, 2022
    Assignee: TOKYO ROKI CO., LTD.
    Inventor: Takayuki Mori
  • Patent number: 11333087
    Abstract: A method for controlling a turbocharger system fluidly connected to an exhaust manifold of a combustion engine and an exhaust after treatment system. The turbocharger system comprises a turbocharger turbine operable by exhaust gases from the exhaust manifold, and a tank with pressurized gas, the tank being fluidly connectable to the turbocharger turbine. The method comprises the steps of: determining a NOx parameter being indicative of, or correlated to, NOx emissions from the exhaust after treatment system; and injecting pressurized gas from the tank to drive the turbocharger turbine based on the determined NOx parameter, wherein a determined NOx parameter above a pre-defined first threshold determines that pressurized gas from the tank is injected.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: May 17, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Marcus Olsén, Johan Larsson
  • Patent number: 11198116
    Abstract: To be able to produce an SCR catalyst (2), in particular one having a zeolite fraction (Z) as catalytically active fraction, in a reliable process and at the same time achieve good catalytic activity of the catalyst (2), an inorganic binder fraction (B) which is catalytically inactive in the starting state and has been treated to develop catalytic activity is mixed into a catalyst composition (4). The inorganic binder component for the binder fraction (B) is, in the starting state, preferably porous particles (10), in particular diatomaceous earth, which display mesoporosity. To effect catalytic activation, the individual particles (10) are either coated with a catalytically active layer (12) or transformed into a catalytically active zeolite (14) with maintenance of the mesoporosity.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 14, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench
  • Patent number: 11199117
    Abstract: The disclosure provides a monolithic wall-flow filter catalytic article including a substrate having an aspect ratio of from about 1 to about 20, and having a functional coating composition disposed on the substrate, the functional coating composition including a first sorbent composition, an oxidation catalyst composition, and optionally, a second sorbent composition. The monolithic wall-flow filter catalytic article may be in a close-coupled position close to the engine. The disclosure further provides an integrated exhaust gas treatment system including the monolithic wall-flow filter catalytic article and may additionally include a flow-through monolith catalytic article. The flow-through monolith catalytic article includes a substrate having a selective catalytic reduction (SCR) coating composition disposed thereon.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: December 14, 2021
    Assignee: BASF Corporation
    Inventors: Shiang Sung, Torsten Neubauer, Pushkaraj Patwardhan
  • Patent number: 11192097
    Abstract: A catalyst for the conversion of NOX and N2O comprising iron chabazite and iron beta zeolite. A method of simultaneously reducing the NOX and N2O concentration in a process gas stream comprising contacting the process gas stream with a catalyst comprising iron chabazite and iron beta zeolite under conversion conditions.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 7, 2021
    Assignee: SHELL OIL COMPANY
    Inventors: Steven Russell Lee, Wenzhong Zhang, Geert Marten Bakker
  • Patent number: 11179674
    Abstract: A process for the removal of nitrous oxide (N2O) contained in a process off-gas in an axial flow reactor. The process includes the steps of (a) adding an amount of reducing agent into the process off-gas; (b) in a first stage passing in axial flow direction the process off-gas admixed with the reducing agent through a first monolithic shaped catalyst active in decomposing nitrous oxide by reaction with the reducing agent to provide a gas with a reduced amount of nitrous oxide and residual amounts of reducing agent; and (c) in a second stage passing the gas with a reduced amount of nitrous oxide and residual amounts of the reducing agent in axial flow direction through a second monolithic shaped catalyst active in oxidation of the residual amounts of the reducing agent.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: November 23, 2021
    Assignee: Haldor Topsoe A/S
    Inventors: Janus Emil Münster-Swendsen, Niklas Bengt Jakobsson
  • Patent number: 11072535
    Abstract: A zeolitic material having framework type CHA, comprising a transition metal M and an alkali metal A, and having a framework structure comprising a tetravalent element Y, a trivalent element X and O, wherein the transition metal M is a transition I metal of groups 7 to 12 of the periodic table, A is one or more of K and Cs, Y is one or more of Si, Ge, Ti, Sn and Zr, and X is one or more of Al, B, Ga and In. A process for preparing such a zeolitic material. Use of such a zeolitic material.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: July 27, 2021
    Assignee: BASF SE
    Inventors: Mathias Feyen, Ulrich Mueller, Xinhe Bao, Weiping Zhang, Dirk De Vos, Hermann Gies, Feng-Shou Xiao, Toshiyuki Yokoi, Ute Kolb, Bernd Marler, Yong Wang, Trees De Baerdemaeker, Chuan Shi, Xiulian Pan, Xiangju Meng
  • Patent number: 11007480
    Abstract: An object of the present invention is to provide an exhaust gas purification system which exhibits high exhaust gas purification performance. The present invention provides an exhaust gas purification system including: a carrier containing aluminum oxide; an exhaust gas purification device including a catalyst provided on the carrier and containing gallium, and connected to an internal combustion engine; and a system connected to the exhaust gas purification device for increasing an oxygen concentration. The system for increasing an oxygen concentration provides an oxygen concentration higher than that of a post combusted gas of the internal combustion engine.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: May 18, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Eri Takahashi, Masato Kaneeda, Kazuhiro Oryoji, Naoki Yoneya, Masayuki Saruwatari
  • Patent number: 11000836
    Abstract: SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: May 11, 2021
    Inventors: Guy Richard Chandler, Jillian Elaine Collier, Alexander Nicholas Michael Green, Desiree Duran-Martin, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid
  • Patent number: 10926251
    Abstract: A selective catalytic reduction catalyst composition for converting oxides of nitrogen (NOx) in an exhaust gas using a nitrogenous reductant, which catalyst composition comprising a mixture of a first component and a second component, wherein the first component is the H-form of an aluminosilicate chabazite zeolite (CHA); or an admixture of the H-form of an aluminosilicate mordenite zeolite (MOR) and the H-form of an aluminosilicate chabazite zeolite (CHA); and the second component is a vanadium oxide supported on a metal oxide support, which is titania, silica-stabilized titania or a mixture of titania and silica-stabilized titania, wherein the weight ratio of the first component to the second component is 10:90 to 25:75.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: February 23, 2021
    Assignee: Johnson Matthey Catalysts (Germany) GmbH
    Inventors: Diana Biskupski, Joerg Muench, Irene Piras
  • Patent number: 10899617
    Abstract: An apparatus is provided for treatment of process gas formed during nitric acid production by catalytic oxidation of NH3. The apparatus includes a reactor, a first catalyst bed for N2O decomposition, an absorption tower to react the NOx formed with an absorption medium downstream of the first catalyst bed, a device for adding NH3 added to tailgas entering the second catalyst bed, and a second catalyst bed for NOx reduction and further decrease in N2O in the tailgas exiting the absorption tower. The second catalyst bed contains at least one iron-loaded zeolite catalyst. N2O removal in the first catalyst bed is limited such that the process gas exiting the first catalyst bed exhibits a N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.25. Treated gas exiting the second catalyst bed has a NOx concentration of <40 ppmv and a N2O concentration of <200 ppmv.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: January 26, 2021
    Assignee: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
    Inventors: Meinhard Schwefer, Rolf Siefert, Jürgen Fuchs, Klaus Ruthardt, Michael Groves
  • Patent number: 10882033
    Abstract: A slurry composition for a catalyst and a method for producing the same, a catalyst and a method for producing the same using the slurry composition for a catalyst. The method omits many heretofore required treatment steps and reduces catalyst production cost. The method comprising the steps of providing a slurry composition for a catalyst, comprising at least an aluminosilicate, Cu, and water, and having a solid concentration of 0.1% by mass to 90% by mass, wherein a component for a catalyst has composition represented by Al2O3·xSiO2·yT2O·zCuO (wherein T is a quaternary ammonium cation, and x, y and z are numbers that satisfy 10?x?40, 0.1?y<2.0, and 0.1?z<2.0, respectively) in terms of molar ratio based on an oxide; coating at least one side of a support with this slurry composition; and heat-treating at 350° C. or higher.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: January 5, 2021
    Assignee: N.E. CHEMCAT CORPORATION
    Inventors: Yukio Takagi, Kiyohiko Saito, Yasuyuki Banno, Makoto Nagata
  • Patent number: 10876449
    Abstract: Method for operating an internal combustion engine which has a gas combustion system and an exhaust gas post-treatment system. Exhaust gas that leaves the gas combustion system is directed to at least one CH4 oxidation catalytic converter of the exhaust gas post-treatment system. The CH4/NO2 mole ratio in the exhaust gas is set in a defined fashion by at least one gas-combustion-system-side and/or exhaust-gas-post-treatment-system-side measure upstream of at least one CH4 oxidation catalytic converter.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: December 29, 2020
    Assignee: MAN Energy Solutions SE
    Inventors: Andreas Döring, Plamen Toshev
  • Patent number: 10792614
    Abstract: Described is a process for the treatment of a gas stream containing nitrogen oxides. The process comprises the steps of: (1) providing a gas stream containing one or more nitrogen oxides; (2) contacting the gas stream provided in step (1) with a transition metal containing zeolitic material having a BEA-type framework structure for reacting one or more of the nitrogen oxides; wherein the zeolitic material is obtainable from an organotemplate-free synthetic process. Also described is an apparatus for the treatment of a gas stream comprising containing nitrogen oxides.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: October 6, 2020
    Assignee: BASF SE
    Inventors: Stephan Deuerlein, Stefan Maurer
  • Patent number: 10730202
    Abstract: The invention relates to a method for producing OSB wood material panels, in particular OSB wood material panels having reduced emission of volatile organic compounds (VOCs), including the following steps: a) producing wood strands from suitable woods; b) torrefying at least some of the wood strands; c) glue-coating the torrefied wood strands and non-torrefied wood strands with at least one binder; d) scattering the glue-coated wood strands onto a conveyor belt; and e) pressing the glue-coated wood strands to form a wood material panel. The invention further relates to an OSB wood material panel that can be produced in accordance with said method and to the use of torrefied wood strands to reduce the emission of VOCs from OSB wood material panels.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 4, 2020
    Assignee: SWISS KRONO Tec AG
    Inventors: Norbert Kalwa, Ingo Lehnhoff
  • Patent number: 10669910
    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 comprises a passive NOx adsorber (PNA) comprising a platinum group metal and a base metal, both on a molecular sieve, and an ammonia slip catalyst (ASC) comprising an oxidation catalyst comprising a platinum group metal on a support, and a first SCR catalyst; where the second zone comprises 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 including a blend of: (1) the oxidation catalyst and (2) the first SCR catalyst; and a top layer including a second SCR catalyst, the top layer located over the bottom layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 2, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, John Kilmartin, Dongxia Liu, Jing Lu, Desiree Duran-Martin, Raj Rajaram
  • Patent number: 10661226
    Abstract: Process for treating a combustion waste gas stream containing NOx and contaminants such as heavy metals and/or acid gases, e.g., halogens, SOx, comprising: injecting an alkali sorbent, into the waste gas stream; removing some contaminants with the alkali sorbent from the waste gas stream; injecting an ammonia source into the gas stream; injecting a deNOx catalyst into the gas stream at a temperature of 100° C. to preferably not more than 600° C. to reduce with NH3, in the presence of O2, some NOx to N2 and water in the gas stream, wherein the deNOx catalyst comprises copper and/or copper oxide deposited on a porous support comprising at least 60 wt % of a calcium-deficient hydroxyapatite having a Ca/P of less than 1.67. A blend comprising the alkali sorbent and the deNOx catalyst may be formed to inject them together into the waste gas stream. The ammonia source and the deNOx catalyst are preferably injected simultaneously.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: May 26, 2020
    Assignee: Solvay SA
    Inventors: Thierry Delplanche, Antonella Gervasini
  • Patent number: 10634031
    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 comprises a passive NOx adsorber (PNA) comprising a platinum group metal and a base metal, both on a molecular sieve, and an ammonia slip catalyst (ASC) comprising an oxidation catalyst comprising a platinum group metal on a support, and a first SCR catalyst; where the second zone comprises 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 including a blend of: (1) the oxidation catalyst and (2) the first SCR catalyst; and a top layer including a second SCR catalyst, the top layer located over the bottom layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 28, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, John Kilmartin, Dongxia Liu, Jing Lu, Desiree Duran-Martin, Raj Rajaram
  • Patent number: 10590824
    Abstract: An aftertreatment system comprises an aftertreatment component structured to decompose constituents of an exhaust gas produced by an engine. A reductant insertion assembly is fluidly coupled to the aftertreatment component and configured to insert a reductant therein. A controller is operatively coupled to the reductant insertion assembly and configured to instruct the reductant insertion assembly to insert the reductant into the aftertreatment component for a first insertion time between first time intervals. The controller determines an operating condition of the engine, and determines if the operating condition satisfies a predetermined condition. In response to the predetermined condition being satisfied, the controller instructs the reductant insertion assembly to insert the reductant into the aftertreatment component for a second insertion time between second time intervals. The second insertion time is longer than the first insertion time.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: March 17, 2020
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Santosh Kumar Ratan, Bryce R. Larson, Jinqian Gong, Abhijeet Singh Chauhan, Arun Kumar Dasari, Aditi Vedantam, Frederick V. Holt, III
  • Patent number: 10556086
    Abstract: Methods of administering therapeutic gases containing high concentrations of nitric oxide, particularly concentrations above 2,000 ppm. The therapeutic gas may be administered at a certain dosing rate, such as less than 166 micrograms of nitric oxide per second. Also, methods of administering a therapeutic gas containing nitric oxide to a patient, wherein a dose of nitric oxide is administered from a portable device that includes a delivery system and a mini-cylinder. Methods can also include intermittent administration of nitric oxide pulses.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 11, 2020
    Assignee: Mallinckrodt Hospital IP Limited
    Inventors: Brahm Goldstein, Douglas Stuart Greene
  • Patent number: 10272419
    Abstract: SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 30, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Jillian Elaine Collier, Alexander Nicholas Michael Green, Desiree Duran-Martin, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid
  • Patent number: 10226765
    Abstract: To be able to produce an SCR catalyst (2), in particular one having a zeolite fraction (Z) as catalytically active fraction, in a reliable process and at the same time achieve good catalytic activity of the catalyst (2), an inorganic binder fraction (B) which is catalytically inactive in the starting state and has been treated to develop catalytic activity is mixed into a catalyst composition (4). The inorganic binder component for the binder fraction (B) is, in the starting state, preferably porous particles (10), in particular diatomaceous earth, which display mesoporosity. To effect catalytic activation, the individual particles (10) are either coated with a catalytically active layer (12) or transformed into a catalytically active zeolite (14) with maintenance of the mesoporosity.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 12, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench
  • Patent number: 10167758
    Abstract: A product for depollution of exhaust gas includes a mixture of an additive for treating particles and a reductant for eliminating nitrogen oxides (NOx). The reductant can contain ammonia or a compound generating ammonia by decomposition, or a hydrocarbon from a hydrocarbon-containing substance, oxygenated or not. The addictive for treating particles can be an additive for catalyzing particle oxidation.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: January 1, 2019
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Stéphane Zinola, Stéphane Raux
  • Patent number: 10151227
    Abstract: A catalyst for storing nitrogen oxides (NOx) in an exhaust gas from a lean burn engine comprising a NOx storage material and a substrate, wherein the NOx storage material comprises a NOx storage component and an NO oxidation promoter on a support material, wherein the NO oxidation promoter is manganese or an oxide, hydroxide or carbonate thereof.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: December 11, 2018
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Andrew Armitage, Andrew Francis Chiffey, John Benjamin Goodwin, James Leeland, Nuria Lastra-Calvo, Francois Moreau, Paul Richard Phillips, Stuart David Reid, Daniel Swallow, David Xuereb
  • Patent number: 9999876
    Abstract: Provided is a catalyst for the selective reduction of NOx comprising a two molecular sieve materials having a CHA structure, wherein the first molecular sieve has a mean crystal size of about 0.01 to 1 ?m and the second molecular sieve has a mean crystal size of about 1-5 ?m, and wherein the first molecular sieve contains a first extra-framework metal, the second molecular sieve contains a second extra-framework metal, and wherein said first and second extra-framework metals are independently selected from the group consisting of cesium, copper, nickel, zinc, iron, tin, tungsten, molybdenum, cobalt, bismuth, titanium, zirconium, antimony, manganese, chromium, vanadium, niobium, and combinations thereof.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: June 19, 2018
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Philip Gerald Blakeman, Guy Richard Chandler, Hai-Ying Chen, Debnath De, Joseph Michael Fedeyko, Alexander Nicholas Michael Green, Wendy Manning, Shadab Mulla
  • Patent number: 9981256
    Abstract: There is disclosed a microporous crystalline material having pore opening ranging from 3 to 5 Angstroms, where the material comprises a first metal chosen from alkali earth group, rare earth group, alkali group, or mixtures thereof, and a second metal chosen from iron, copper or mixtures thereof; and has a molar silica to alumina ratio (SAR) from 3 to 10. The microporous crystalline material disclosed herein may comprise a crystal structure having building units of double-6-rings (d6r) and pore opening of 8-rings as exemplified with framework types defined by the Structure Commission of the International Zeolite Association having structural codes of CHA, LEV, AEI, AFT, AFX, EAB, ERI, KFI, SAT, TSC, and SAV. There is also disclosed a method of selective catalytic reduction of nitrogen oxides in exhaust gas, comprising at least partially contacting the exhaust gases with an article comprising the disclosed microporous crystalline material.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 29, 2018
    Assignee: PQ Corporation
    Inventors: Hong-Xin Li, Bjorn Moden, William E. Cormier
  • Patent number: 9802182
    Abstract: Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 31, 2017
    Assignee: BASF Corporation
    Inventors: Subramanian Prasad, Martin C. Wende, Jaya L. Mohanan
  • Patent number: 9789474
    Abstract: The problem to be solved by the present invention is to provide a good NOx selective reduction catalyst. To solve the problem is a NOx selective reduction catalyst containing a composite oxide of Ti, Ce, W, and P or S.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: October 17, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keiichi Minami
  • Patent number: 9738521
    Abstract: The invention relates to a process and apparatus for preparing nitric acid by catalytic oxidation of NH3 by means of oxygen and subsequent reaction of the NOx formed with an absorption medium in an absorption tower, which comprises a catalyst bed for N2O decomposition arranged in the process gas downstream of the catalytic NH3 oxidation and upstream of the absorption tower in the flow direction and a catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas downstream of the absorption tower in the flow direction, wherein the amount of N2O removed in the catalyst bed for N2O removal arranged in the process gas is not more than that which results in an N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 22, 2017
    Assignee: THYSSENKRUPP UHDE GMBH
    Inventors: Meinhard Schwefer, Rolf Siefert, Jürgen Fuchs, Klaus Ruthardt, Michael Groves
  • Patent number: 9694322
    Abstract: The present invention is directed to a method of mitigating noxious exhaust pollutants in a system comprising an oxidation catalyst monolith in front of a NOx depletion device. In particular, the method of the invention proposes to use hexagonal cell geometry of the oxidation catalyst monolith in order to increase its oxidative power.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 4, 2017
    Assignee: UMICORE AG & CO. KG
    Inventors: Olivier Teysset, Philippe Servais, Julie Baron
  • Patent number: 9616420
    Abstract: A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: April 11, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Alexander Nicholas Michael Green, Joanne Elizabeth Melville, Paul Richard Phillips, Stuart David Reid
  • Patent number: 9556023
    Abstract: A porous composite metal oxide, including a mixture of first ultrafine particles containing alumina and second ultrafine particles containing zirconia, wherein the first ultrafine particles and the second ultrafine particles are uniformly dispersed in such a way as to satisfy a condition that standard deviations of content ratios (% by mass) of all metal elements contained in the porous composite metal oxide at 0.1% by mass or more are each 10 or less, the standard deviations being obtained by measuring content ratios of the metal elements at 100 measurement points within a minute analysis region of 20 nm square by energy dispersive X-ray spectroscopy using a scanning transmission electron microscope equipped with a spherical aberration correction function.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: January 31, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Kimitoshi Sato, Kae Yamamura, Akira Morikawa, Akihiko Suda
  • Patent number: 9527031
    Abstract: An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidizing nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NOx absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: December 27, 2016
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Neil Robert Collins, Paul Richard Phillips, Daniel Swallow
  • Patent number: 9492811
    Abstract: Extruded honeycomb catalyst bodies and methods of manufacturing same. The catalyst body includes a first oxide selected from the group consisting of tungsten oxides, vanadium oxides, and combinations thereof, a second oxide selected from the group consisting of cerium oxides, lanthanum oxides, zirconium oxides, and combinations thereof, and a zeolite.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 15, 2016
    Assignee: Corning Incorporated
    Inventors: Steven Bolaji Ogunwumi, Mallanagouda Dyamanagouda Patil, Yuming Xie, Hao Cheng, Shudong Wang
  • Patent number: 9475039
    Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: October 25, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang
  • Patent number: 9463446
    Abstract: A carbon dioxide adsorbent may include a chabazite zeolite containing an alkali metal ion or alkaline earth metal ion. The chabazite zeolite may have a Si/Al mole ratio of about 1 to about 9.9 and mesopores. The carbon dioxide adsorbent may be included in a carbon dioxide capture module. The carbon dioxide adsorbent may also be used in a method of separating carbon dioxide.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: October 11, 2016
    Assignees: Samsung Electronics Co., Ltd., INHA-Industry Partnership Institute
    Inventors: Hyuk Jae Kwon, Soon Chul Kwon, Hyun Chul Lee, Wha Seung Ahn, Seung Hwan Hong
  • Patent number: 9429055
    Abstract: Provided is a method for extending a temperature range enabling combustion of high concentration hydrocarbon, or for rapidly supplying high temperature gas to a later stage catalyst. Provided is a method for purification of exhaust gas from an internal-combustion engine comprised by: providing a temperature-raising catalyst for exhaust gas from an internal-combustion engine in an exhaust gas passage of the internal-combustion engine, along flow of said exhaust gas, at the upstream side of a purification catalyst for said exhaust gas; and introducing hydrocarbon in an amount of 1,000 to 40,000 ppm, as converted to methane, from the upstream side of the temperature-raising catalyst, wherein said temperature-raising catalyst has catalytically active components supported onto a refractory three-dimensional structure, wherein concentration of said components has a gradient such that said concentration gradually becomes lower from the inflow side toward the outflow side of said exhaust gas.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 30, 2016
    Assignees: UMICORE SHOKUBAI USA INC., UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventor: Masanori Ikeda
  • Patent number: 9358530
    Abstract: A carbon dioxide adsorbent may include a chabazite zeolite containing an alkali metal ion or an alkaline earth metal ion. The chabazite zeolite may have a Si/Al mole ratio of about 1 to about 9.9. The carbon dioxide adsorbent may be included in a carbon dioxide capture module. The carbon dioxide adsorbent may also be used in a method of separating carbon dioxide.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: June 7, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., INHA-INDUSTRY PARTNERSHIP INSTITUTE
    Inventors: Hyuk Jae Kwon, Soon Chul Kwon, Hyun Chul Lee, Wha Seung Ahn, Seung Hwan Hong
  • Patent number: 9156000
    Abstract: An oxidation catalyst, an ozone injection nozzle, a urea-based fluid injection nozzle, and a selective reduction catalyst are arranged in an exhaust pipe of an engine in this order towards its outlet. An exhaust gas purifier includes an air flow sensor that detects an air intake amount of the engine, a NOx sensor that detects a NOx concentration in the exhaust pipe, and first and second temperature sensors that detect inlet temperatures of the catalysts. An ozone generation device to which the ozone injection nozzle is connected includes a compressor, a dryer that dries compressed air, a flow rate sensor that detects a flow rate of this air, an ozone generator that converts this air into ozone, and an ozone concentration sensor that detects a concentration of the ozone. A controller controls the compressor and the ozone generator based on respective detection outputs of the respective sensors.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: October 13, 2015
    Assignee: Hino Motors, Ltd.
    Inventors: Yoshihiro Kawada, Asahiko Shimizu
  • Patent number: 9115076
    Abstract: A process for preparing saturated branched chain fatty acids or alkyl esters thereof involving subjecting unsaturated fatty acids having 10 to 25 carbon atoms, alkyl esters thereof or mixtures thereof to a skeletal isomerization reaction in the presence of water or a lower alcohol at a temperature of about 240° C. to about 280° C. using a combination of a sterically hindered Lewis base and zeolite as a Brönsted or Lewis acid catalyst, and isolating saturated branched chain fatty acids or alkyl esters thereof or mixtures thereof from the reaction mixture obtained by the skeletal isomerization reaction; wherein the process further comprises (a) recycling said catalyst by washing said catalyst with an acid solution at about 55° C. for about 24 hours, recovering the catalyst followed by heating the catalyst at about 115° C. for about 20 hours for the first four or five cycles of use and (b) in the next subsequent cycle recycling the catalyst by heating the catalyst at about 115° C.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 25, 2015
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Helen Ngo, Thomas A. Foglia
  • Patent number: 9079162
    Abstract: Disclosed is a catalyst, preferably for use in selective catalytic reduction (SCR), said catalyst comprising one or more zeolites of the MFI structure type, and one or more zeolites of the BEA structure type, wherein at least part of the one or more zeolites of the MFI structure type and at least part of the one or more zeolites of the BEA structure type respectively contain iron (Fe). Furthermore, an exhaust gas treatment system is described, comprising said catalyst as well as a process for the treatment of a gas stream comprising NOx using said catalyst as well.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 14, 2015
    Assignees: BASF SE Ludwigshafen, N.E. CHEMCAT CORPORATION
    Inventors: Susanne Stiebels, Claudia Wendt, Torsten Neubauer, Edith Schneider, Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata
  • Patent number: 9073754
    Abstract: Certain exemplary embodiments can provide one or more systems, machines, devices, manufactures, compositions of matter, and/or methods for, activities that can comprise, creating a composition comprising chlorine dioxide adsorbed in a zeolite, and/or releasing at least a portion of the chlorine dioxide from the composition, the released chlorine dioxide potentially useful for disinfection, decolorization, mildew control, and/or odor control.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: July 7, 2015
    Assignee: Dharma IP, LLC
    Inventors: Ken Harrison, Nick Blandford
  • Patent number: 9023454
    Abstract: A formed zeolite honeycomb article comprises a formed article obtained by extruding a zeolite raw material containing zeolite particles, an inorganic binding material and a filler constituted of plate-like particles in a honeycomb shape including partition walls disposed to form a plurality of cells, a drying shrinkage of the partition walls in a thickness direction thereof is larger than a drying shrinkage of the partition walls in a cell extending direction thereof and a drying shrinkage of the partition walls in a diametric direction perpendicular to the cell extending direction thereof, and the drying shrinkage of the partition walls in the thickness direction thereof is 1.2 or more times the drying shrinkage of the partition walls in the diametric direction perpendicular to the cell extending direction thereof in the formed zeolite honeycomb article.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: May 5, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshio Kikuchi, Haruo Otsuka
  • Patent number: 9017626
    Abstract: Described are SCR catalyst systems comprising a first SCR catalyst composition and a second SCR catalyst composition arranged in the system, the first SCR catalyst composition promoting higher N2 formation and lower N2O formation than the second SCR catalyst composition, and the second SCR catalyst composition having a different composition than the first SCR catalyst composition, the second SCR catalyst composition promoting lower N2 formation and higher N2O formation than the first SCR catalyst composition. The SCR catalyst systems are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 28, 2015
    Assignee: BASF Corporation
    Inventors: Weiyong Tang, Jaya L. Mohanan
  • Publication number: 20150110711
    Abstract: Process for the direct synthesis of Cu-SAPO-34 comprising at least the following steps: preparation of a mixture containing water, at least one silicon source, at least one Al source, at least one P source, at least one Cu source, at least one OSDA1 (where OSDA1 is any polyamine), and at least one OSDA2 (where OSDA2 is any organic molecule capable of directing the synthesis of the SAPO-34); and where the final synthesis mixture has the next molar composition: a Si:0.5 Al:b P:c Cu:d OSDA1:e OSDA2:f H20 wherein a is in the range from 0.01 to 0.3; wherein b is in the range from 0.2 to 0.49; wherein c is in the range from 0.001 to 0.6; wherein d is in the range from 0.001 to 0.6; wherein e is in the range from 0.001 to 2; wherein f is in the range from 1 to 200; hydrothermal treatment of the mixture at 80-200° C. until formation of the crystalline material, and recovery of the crystal-line material.
    Type: Application
    Filed: April 27, 2012
    Publication date: April 23, 2015
    Applicant: Haldor Topsøe A/S
    Inventors: Raquel Martínez Franco, Manuel Moliner Marin, Avelino Corma Canós, Arkady Kustov, Joakim Reimer Thøgersen
  • Patent number: 9011806
    Abstract: The invention relates to a method for treating a gas containing nitrogen oxides (NOx), in which an NOx-reduction reaction is carried out using a nitrogen-containing reducing agent, which invention is characterized in that the catalyst used for the reduction reaction is a catalytic system containing a composition comprising zirconium, cerium and niobium in the following percentages by weight, expressed in terms of the weight of oxide: 10-50% of cerium, 5-20% of niobium and the remainder consisting of zirconium.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: April 21, 2015
    Assignees: Rhodia Operations, Magnesium Elektron Limited
    Inventors: Laure Bisson, Julien Hernandez, Rui Miguel Jorge Coelho Marques, Emmanuel Rohart, Mila Bortun, Deborah Jayne Harris, Clare Jones