Patents Assigned to Johnson Matthey Public Limited Company
  • Patent number: 10808192
    Abstract: A marking method which is a method of marking a product having a distillation range is disclosed. The method comprises the step of adding to said product a first marker, a second marker and optionally one or more further markers. Each marker has a distillation range including a minimum boiling point (Min BP), a maximum boiling point (Max BP) and a maximum distillation boiling point (Max DBP) which is the temperature at which the maximum volume of the marker distils. Each marker has a different distillation range from each other marker and at least one marker has a Max DBP which is within the distillation range of the product. The first marker has a distillation range in the marked product which extends over the whole of the product distillation range.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Clive Marchant
  • Patent number: 10808585
    Abstract: A catalytic wall-flow monolith filter for use in an emission treatment system comprises a wall flow substrate having a first and a second face, and first and second pluralities of channels. The first plurality of channels is open at the first face and closed at the second face. The second plurality of channels is open at the second face and closed at the first face. The monolith filter comprises a porous substrate having a first zone extending from the first face towards the second face and a second zone extending from the second face towards the first face. Each of the zones are less that filter length. A first catalytic material is distributed throughout the first zone of the porous substrate, and a second catalytic material covers at least a portion of the surfaces in the second zone of the porous substrate and is not distributed throughout the porous substrate.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Keith Anthony Flanagan, Paul Richard Phillips, David Marvell
  • Patent number: 10807082
    Abstract: Provided is catalyst material useful for the selective catalytic reduction of NOx in lean burn exhaust gas, wherein the catalyst material is a hydrothermally stable, low SAR aluminosilicate zeolite loaded with a synergistic combination of one or more transition metals, such as copper, and one or more alkali or alkaline earth metals, such as calcium or potassium.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Joseph Michael Fedeyko, Hai-Ying Chen
  • Patent number: 10807080
    Abstract: Provided are a novel synthesis technique for producing a metal promoted aluminosilicate zeolite having a small pore framework comprising the step of reacting a synthesis gel comprising at least one promoter metal containing zeolite, a structure directing agent and an optional additional silica source; and methods of using the same.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Fedeyko, Raul Lobo, Trong Pham
  • Patent number: 10807081
    Abstract: Catalyst articles having an ammonia slip catalyst (ASC) comprising a blend of platinum on a support with low ammonia storage and a first SCR catalyst, and a second catalyst, such as a diesel oxidation catalyst, a diesel exotherm catalyst (DEC), a NOx absorber, a selective catalytic reduction/passive NOx adsorber (SCR/PNA), a cold-start catalyst (CSC) or a three-way catalyst (TWC) are disclosed. The catalyst articles can also contain one or two additional SCR catalysts. The catalysts can be present in one of various configurations. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Mikael Larsson, David Micallef
  • Patent number: 10807079
    Abstract: An oxidation catalyst for treating an exhaust gas produced by a stoichiometric natural gas (NG) engine comprising a substrate and a catalytic material for oxidising hydrocarbon (HC), wherein the catalytic material for oxidising hydrocarbon (HC) comprises a molecular sieve and a platinum group metal (PGM) supported on the molecular sieve, wherein the molecular sieve has a framework comprising silicon, oxygen and optionally germanium.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Fedeyko, Jing Lu, Arthur Reining
  • Patent number: 10807866
    Abstract: A catalyst precursor, suitable for use after reduction as a water-gas shift catalyst, is described, which is in the form of a pellet comprising one or more oxides of iron, wherein the catalyst precursor has a pore volume 0.30 cm3/g and an average pore size in the range 60 to 140 nm The precursor may be prepared by calcination of precipitated iron compounds at temperatures in the range 400-700° C.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Anne-Marie Christina Alexander, Matthew John Cousins, Michele Marigo, Nicola Campbell McKidd, William Maurice Sengelow
  • Patent number: 10807040
    Abstract: A catalyst article including a substrate with an inlet side and an outlet side, a first zone and a second zone, where the first zone includes an ammonia slip catalyst (ASC) comprising a platinum group metal on a support and a first SCR catalyst; where the second zone includes a catalyst selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); and where the first zone is located upstream of the second zone. The first zone may include a bottom layer with a blend of: (1) the platinum group metal on a support and (2) the first SCR catalyst; and a top layer comprising a second SCR catalyst, the top layer located over the bottom layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Michael Fedeyko, Jing Lu
  • Patent number: 10808000
    Abstract: The present invention provides a process for the preparation of a complex of formula (I): comprising the step of reacting Pd(diolefin)X2 or PdX2 and PR1R2R3 in a solvent to form the complex of formula (I), wherein the process is carried out in the absence of a base, the molar ratio of Pd(diolefin)X2:PR1R2R3 or PdX2:PR1R2R3 is greater than 1:1.1, up to about 1:2.5; each X is independently a halide; and R1, R2 and R3 are independently selected from the group consisting of tert-butyl and isopropyl.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 20, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: William Carole, Thomas Colacot, Carin Seechurn, Thomas Scrase
  • Patent number: 10800719
    Abstract: A process for the production of vinyl chloride comprises the step of passing a feed stream comprising ethylene dichloride (EDC) over a catalyst system comprising a dehydrochlorination catalyst and a hydrochlorination catalyst at a temperature, which may be in the range 150-350° C., sufficient to effect dehydrochlorination of the ethylene dichloride to produce vinyl chloride.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: October 13, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Nicholas Andrew Carthey, Andrew George Hiles, Joost Johannes Smit
  • Patent number: 10799832
    Abstract: A catalyst article for treating a flow of a combustion exhaust gas comprises: a catalytically active substrate comprising one or more channels extending along an axial length thereof through which, in use, a combustion exhaust gas flows, the one or more channels having a first surface for contacting a flow of combustion exhaust gas; wherein the substrate is formed of an extruded vanadium-containing SCR catalyst material, wherein a first layer is provided on at least a portion of said first surface, wherein the first layer comprises an ammonia slip catalyst composition comprising one or more platinum group metals supported on titania, a silica-titania mixed oxide, a Ce—Zr mixed oxide, or a mixture thereof, and a second layer is provided on at least a portion of the first layer and comprises an SCR catalyst composition.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Heledd Howells, David Micallef, Andrew Newman, Neil Greenham
  • Patent number: 10799853
    Abstract: A method of synthesizing a zeolite comprising the steps of: a. preparing an admixture containing (i) at least one source of alumina, (ii) at least one source of silica, and (iii) at least one structure directing agent (SDA) in hydroxide form, wherein the admixture is essentially free of alkali metals, wherein the at least one structure directing agent (SDA) in hydroxide form is N,N-diethyl-2,6-dimethylpiperidinium; and b. heating the admixture under autogenous pressure at a temperature and with stirring or mixing for a sufficient time to crystalize hydrogen-form zeolite crystals having an AEI framework.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 13, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Fedeyko, Raul Lobo, Trong Pham
  • Patent number: 10792647
    Abstract: A method for oxidizing carbon monoxide (CO) and volatile organic compounds (VOCS) comprises contacting a gas containing water vapor and said CO and VOCs with a catalyst composition comprising at least one base metal promoter and at least one base metal catalyst supported on an oxide support material comprising one or more of alumina, silica, zirconia, ceria, and titania, wherein the VOCs comprise one or more of methyl acetate, methane, methyl bromide, benzene, methanol, methyl ethyl ketone, butane, and butene.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 6, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Arthur J. Reining, Paul J. Andersen, Rita Aiello
  • Patent number: 10773251
    Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: September 15, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Hanako Oyamada, Raj Rao Rajaram, Satoshi Sumiya, Andrew Peter Walker, Lifeng Wang
  • Patent number: 10777812
    Abstract: An electrochemically active material includes an active phase that includes silicon, and at least one inactive phase having a Scherrer Grain Size of greater than 5 nanometers. Each inactive phase of the material having a Scherrer Grain Size of greater than 5 nanometers has a lattice mismatch to Li15Si4 of greater than 5%.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: September 15, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Xiaohua Ma, Mark N. Obrovac
  • Patent number: 10773252
    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/or Tungsten (W); (ii) Vanadium (V); (iii) Titanium (Ti), and (iv) an MFI zeolite, wherein the composition comprises, based on the total weight of the composition: (i) 1 to 6 wt % of MoO3 and/or 1 to 10 wt % WO3; and (ii) 0.1 to 3 wt % V2O5, and (iii) 48.5 to 94.5 wt % TiO2; and (iv) 35 to 50 wt % MFI zeolite.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 15, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Silvia Alcove Clave, Paul Andersen, Maria Brandmair, Manop Huber, Michael Nash, David Repp
  • Patent number: 10766023
    Abstract: Provided are a novel form of AFX zeolite, a novel synthesis technique for producing pure phase small pore zeolites, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with a metal, and methods of using the same.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 8, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Fedeyko, Raul Lobo, Nicholas McNamara, Trong Pham
  • Patent number: 10759744
    Abstract: A process for the production of formaldehyde-stabilised urea is described comprising the steps of: (a) generating a synthesis gas; (b) subjecting the synthesis gas to one or more stages of water-gas shift in one or more water-gas shift reactors to form a shifted gas; (c) cooling the shifted gas to below the dew point and recovering condensate to form a dried shifted gas; (d) recovering carbon dioxide from the dried shifted gas in a carbon dioxide removal unit to form a carbon dioxide-depleted synthesis gas; (e) synthesising methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off-gas; (f) subjecting at least a portion of the recovered methanol to oxidation with air to form formaldehyde in a stabiliser production unit; (g) subjecting the methanol synthesis off-gas to methanation in a methanation reactor containing a methanation catalyst to form an ammonia synthesis gas; (h) synthesising ammonia from the ammonia synthesis gas i
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 1, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Sam Barker, Thomas Davison, John David Pach
  • Patent number: 10751686
    Abstract: A method is described for preparing a sorbent comprising the steps of: (i) mixing together a particulate copper sulphide material and a particulate calcined rehydratable alumina, (ii) shaping the mixture, and (iii) drying the shaped mixture to form a dried sorbent.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 25, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Matthew James Evans, Matthew David Gwydion Lunn, Martin Graham Partridge, Christopher John Young
  • Patent number: 10751687
    Abstract: A method is described for preparing a sorbent precursor comprising the steps of: (i) forming agglomerates comprising a particulate support material, (ii) coating the agglomerates with a coating mixture powder comprising a particulate sulphidable copper compound and a particulate calcined, rehydratable alumina to form a coated agglomerate, and (iii) drying the coated agglomerate to form a dried sorbent precursor. The sorbent precursor may be sulphided and used to remove heavy metals such as mercury from fluid streams.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 25, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Matthew James Evans, Paul Thomas Foran, Matthew David Gwydion Lunn