Patents Assigned to Johnson Matthey Public Limited
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Patent number: 11975908Abstract: The use of a palladium-doped zeolite for the adsorption of volatile organic compounds is described wherein the zeolite has a CHA framework type and is polymer-bound. Such zeolites have been found to have particular utility as packaging materials for the adsorption of volatile organic compounds, such as those originating from organic matter.Type: GrantFiled: October 31, 2022Date of Patent: May 7, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew William John Smith, Andrew Cornish, Han Xu, Jhonny Rodrigues Ramos
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Patent number: 11958040Abstract: A method is described for preparing an eggshell catalyst comprising the steps of: (i) preparing a calcined shaped alkaline earth metal aluminate catalyst support, (ii) treating the calcined shaped alkaline earth metal aluminate support with a gas containing water vapour to form a hydrated support, (iii) with or without an intervening drying step, impregnating the hydrated support with an acidic solution containing one or more catalytic metal compounds and drying the impregnated support, (iv) calcining the dried impregnated support, to form a calcined catalyst having a catalytic metal oxide concentrated at the surface of the support and (v) optionally repeating steps (ii), (iii) and (iv).Type: GrantFiled: April 30, 2020Date of Patent: April 16, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Mikael Carlsson, Mark Alexander Kent, Stefano Martinuzzi, Shanneal Readman, John West
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Patent number: 11959408Abstract: The present invention relates to a system for ammonia combustion and exhaust gas treatment, the system comprising: an internal combustion engine for combusting ammonia; and an exhaust system comprising an intake for receiving an exhaust gas from the combustion engine, an upstream injector for adding hydrogen gas to the exhaust gas and a downstream catalyst article, wherein the downstream catalyst article comprises a three-way catalyst (TWC) composition. The invention further relates to a method for the treatment of an exhaust gas from an ammonia internal combustion engine.Type: GrantFiled: February 15, 2023Date of Patent: April 16, 2024Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Kevin Doura, John Kilmartin, Jing Lu, Nicholas McNamara, Thomas Yeh
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Patent number: 11926527Abstract: A method is described for controlling a furnace containing a plurality of catalyst-containing tubes heated by a combustion gas generated by a plurality of burners, said method comprising the steps of: (i) measuring path-averaged combustion gas temperatures on multiple paths through the furnace using tunable diode laser absorption spectroscopy, (ii) periodically measuring temperatures of surfaces within the furnace to obtain periodic surface temperature information, (iii) entering the path-averaged combustion gas temperatures and periodic surface temperature information into a computer model of the furnace, said model comprising parameters for controlling the furnace; and (iv) using the computer model and the temperature information to obtain optimised parameters for controlling the furnace. A system for performing the method is also described.Type: GrantFiled: August 30, 2019Date of Patent: March 12, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Matthew John Cousins, Michael Davies, John David Pach
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Patent number: 11904305Abstract: A catalytic composition for treating a NOx-containing exhaust gas, wherein the composition comprises a copper-substituted zeolite comprising: i) Ce in a total amount of about 0.1 to about 200 g/ft3; and ii) Mn in a total amount of about 0.1 to about 200 g/ft3.Type: GrantFiled: May 6, 2022Date of Patent: February 20, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Avis, Alexander Nicholas Michael Green, Matthew Eben Harris, Carmelo Iacono, Caitlin Jenkins, Alanna Murphy
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Patent number: 11892336Abstract: An apparatus for determining a vertical level or density of a material column including one or more of a granular solid, a wet granular solid, a slurry, and a suspension, the apparatus having a support member; and at least one measurement module, wherein the measurement module includes a support arm mounted to the support member and extending outwardly from the support member; a displacer mounted to the support arm, and a force measurement device configured to measure a force attributable to a mass of the displacer mediated by a buoyancy of the displacer in the material column, wherein the measurement module has a data connection to a data processing unit for transmitting measurement data from the measurement module to the data processing unit to generate level or density information about the material column.Type: GrantFiled: August 18, 2020Date of Patent: February 6, 2024Assignee: Johnson Matthey Public LimitedInventor: Oliver John Beckett
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Patent number: 11883805Abstract: A catalytic composition for treating a NOx-containing exhaust gas, wherein the composition comprises a copper-substituted small-pore zeolite comprising: i) Ce and/or La in a total amount of about 5 to about 400 g/ft3; and ii) Nd and/or Nb in a total amount of about 5 to about 400 g/ft3.Type: GrantFiled: May 12, 2022Date of Patent: January 30, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Avis, Yannick Bidal, Alexander Nicholas Michael Green, Neil Greenham, Matthew Eben Harris
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Patent number: 11885567Abstract: A method of recording images within a furnace using a thermal imaging camera comprising a bore scope connected to a digital camera unit is described, comprising the steps of: (a) inserting the borescope into the interior of the furnace, (b) collecting one of more images of the interior of the furnace using the thermal imaging camera with the borescope at a first position, and (c) moving the borescope from the first position to a second position and collecting one or more images of the interior of the furnace as the borescope is moved from the first position to the second position, wherein the borescope movement is guided by means of a guide device comprising a movable borescope mounting, mounted externally on the furnace.Type: GrantFiled: May 18, 2020Date of Patent: January 30, 2024Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Matthew John Cousins, Michael Davies, Andrew Johnson, Peter Stones, Paul White
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Patent number: 11873994Abstract: The present disclosure is directed to a system comprising a recuperated gas turbine engine with a catalytic combustor, and methods of operating the same, the catalytic combustor comprising: (a) an upstream section comprising an electrical heater and (b) a downstream catalyst section, wherein the upstream section and the downstream catalyst section are disposed adjacent to and in fluid communication with one another.Type: GrantFiled: November 13, 2019Date of Patent: January 16, 2024Assignees: Johnson Matthey Public Limited Company, Delta Motorsport LimitedInventors: Nick Carpenter, Guy Chandler, Jeremy Gidney, Scott Herring, Chris Morgan, Timothy O'Connell, Mark Wilksch
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Patent number: 11857925Abstract: 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: GrantFiled: February 9, 2021Date of Patent: January 2, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Hai-Ying Chen, Joseph Fedeyko, Dongxia Liu, Jing Lu
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Patent number: 11845065Abstract: A method of manufacturing a catalyst article, the method comprising: providing a complex of a polyphenol and a PGM, the polyphenol comprising an ester functional group, the PGM comprising palladium; providing a support material; applying the complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.Type: GrantFiled: June 8, 2022Date of Patent: December 19, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Qinghe Zheng, Jing Lu, Michael Howard
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Patent number: 11845063Abstract: A method of manufacturing a catalyst article, the method comprising: providing a complex of a polyphenol and a PGM, the PGM comprising rhodium and/or platinum, the polyphenol comprising an ester functional group; providing a support material; applying the complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.Type: GrantFiled: June 8, 2022Date of Patent: December 19, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Qinghe Zheng, Jing Lu, Michael Howard
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Patent number: 11794170Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first inorganic oxide, wherein the IR intensity ratio of bridge CO to atop CO on the PGM component is less than 3:1 under standard CO adsorption procedure.Type: GrantFiled: November 18, 2021Date of Patent: October 24, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Yuan Jing, Shuhei Nagaoka, Ken-ichi Shimizu, Takashi Toyao
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Patent number: 11786885Abstract: A method of manufacturing a catalyst article, the method comprising: providing a slurry comprising a support material, palladium ions, alkaline-earth-metal ions and an organic compound, wherein the organic compound comprises a functional group selected from a sulfo group (—SO3H), a sulfonyl group (—S(?O)2—) and a sulfinyl group (—S(?O)—); disposing the slurry on a substrate; and heating the slurry to form nanoparticles of the palladium and nanoparticles of a sulfate of the alkaline earth metal on the support material.Type: GrantFiled: August 10, 2022Date of Patent: October 17, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Peter DePuccio, Kevin Charles Kistler, Dongxia Liu
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Patent number: 11788450Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.Type: GrantFiled: October 19, 2021Date of Patent: October 17, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Paul Millington, Maria C. Vlachou
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Patent number: 11745173Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component and a first PGM support material, wherein the first catalytic region comprises up to 5 wt. % Sn.Type: GrantFiled: March 18, 2021Date of Patent: September 5, 2023Assignees: Johnson Matthey Public Limited Company, Johnson Matthey (Shanghai) Chemicals LimitedInventors: Hongyu Ji, Wataru Kurashige, Shuhei Nagaoka, Dongsheng Qiao, Zhou Shang, Xiaorui Zhang
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Patent number: 11712685Abstract: The invention relates to a catalytic article comprising a substrate having an inlet and an outlet; a first coating comprising a blend of: (1) platinum on a support, and (2) a first SCR catalyst comprising a Cu- and Mn-exchanged molecular sieve; and a second coating comprising a second SCR catalyst; wherein the support comprises at least one of a zeolite or a SiO2-Al2O3 mixed oxide. The platinum may be fixed on the support in solution.Type: GrantFiled: March 25, 2021Date of Patent: August 1, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Yannick Bidal, Hai-Ying Chen, Joseph Fedeyko, Neil Greenham, Matthew Harris, Jing Lu
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Patent number: 11656212Abstract: The present invention relates to a method and system for measuring total chloride content in a process product stream. In particular, the present invention relates to a method of measuring hydrogen chloride and organochloride content, in situ, for a gaseous refinery process product stream. This method allows for measurement of hydrogen chloride and organochloride content in a single test method, which allows for optimised performance and maintenance schedules for chloride guard beds used within the refinery process.Type: GrantFiled: June 4, 2018Date of Patent: May 23, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Sravan Pappu, Michelle Taylor Wilson
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Patent number: 11654425Abstract: A method of coating a substrate with a washcoat is disclosed. The method comprises engaging the substrate with a headset of a substrate coating apparatus so as to locate an upper surface of the substrate below a washcoat showerhead of the substrate coating apparatus; and discharging a washcoat out of the washcoat showerhead towards the upper surface of the substrate; and drawing the washcoat through the substrate by applying a suction force to a lower surface of the substrate.Type: GrantFiled: December 7, 2020Date of Patent: May 23, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Neil Burgess, Christopher Hayton, Craig Thomson
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Patent number: 11649258Abstract: The present invention provides a palladium(II) complex of formula (1). R12, m, and X are described in the specification. The invention also provides a process for the preparation of the complex, and its use in carbon-carbon and carbon-heteroatom coupling reactions.Type: GrantFiled: February 11, 2021Date of Patent: May 16, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Thomas Colacot, Ruishan Chow, Andrew Jon DeAngelis