公开(公告)号：US11883805B2

公开(公告)日：2024-01-30

申请号：US17742530

申请日：2022-05-12

申请人： Johnson Matthey Public Limited Company

发明人： Daniel Avis ,  Yannick Bidal ,  Alexander Nicholas Michael Green ,  Neil Greenham ,  Matthew Eben Harris

IPC分类号： B01J29/76 ,  F01N3/20 ,  F01N3/08 ,  F01N3/28 ,  B01J29/035 ,  B01J29/72

CPC分类号： B01J29/76 ,  F01N3/2066 ,  B01J29/0358 ,  B01J29/7215 ,  B01J29/7615 ,  F01N3/0807 ,  F01N3/0828 ,  F01N3/0871 ,  F01N3/206 ,  F01N3/2803 ,  F01N2240/18 ,  F01N2250/12 ,  F01N2570/14 ,  F01N2570/145 ,  F01N2610/02 ,  F01N2900/1624

摘要： 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.

公开(公告)号：US11712685B2

公开(公告)日：2023-08-01

申请号：US17301109

申请日：2021-03-25

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Yannick Bidal ,  Hai-Ying Chen ,  Joseph Fedeyko ,  Neil Greenham ,  Matthew Harris ,  Jing Lu

IPC分类号： B01D53/94 ,  B01J29/76 ,  B01J29/44 ,  B01J29/78 ,  B01J29/80 ,  B01J35/10 ,  B01J37/02 ,  F01N3/20 ,  F01N3/28

CPC分类号： B01J29/763 ,  B01D53/9418 ,  B01J29/44 ,  B01J29/76 ,  B01J29/78 ,  B01J29/783 ,  B01J29/80 ,  B01J35/1014 ,  B01J35/1019 ,  B01J37/0244 ,  B01D2255/1021 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/504 ,  B01D2255/904 ,  B01D2255/9022 ,  B01D2255/9207 ,  B01J2229/62 ,  F01N3/2066 ,  F01N3/28 ,  F01N2370/02

摘要： 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.

公开(公告)号：US11000838B2

公开(公告)日：2021-05-11

申请号：US16705713

申请日：2019-12-06

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Neil Greenham ,  Jing Lu ,  Andrew Newman

IPC分类号： B01J29/76 ,  B01J37/02 ,  B01J29/72 ,  B01J35/04 ,  B01J29/44 ,  B01J23/42 ,  B01J29/40 ,  B01J35/00 ,  B01J37/08 ,  B01D53/94 ,  F01N13/00 ,  F01N3/20 ,  F01N3/28

摘要： A catalytic article for treating an exhaust gas stream containing particulate matter, hydrocarbons, CO, and ammonia, the article may include: (a) a substrate having an inlet end and an outlet end defining an axial length; (b) a first catalyst coating including: 1) a platinum group metal distributed on a molecular sieve, and 2) a base metal distributed on a molecular sieve; and (c) a second catalyst coating including: 1) a platinum group metal distributed on a molecular sieve, and 2) a base metal distributed on a molecular sieve.

公开(公告)号：US10799832B2

公开(公告)日：2020-10-13

申请号：US15935178

申请日：2018-03-26

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Heledd Howells ,  David Micallef ,  Andrew Newman ,  Neil Greenham

IPC分类号： B01J23/22 ,  B01J23/42 ,  B01J23/63 ,  B01J29/46 ,  B01J29/76 ,  B01J29/78 ,  B01J29/80 ,  B01J35/00 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94 ,  B01J37/02 ,  B01J37/00 ,  B01J37/08

摘要： 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.

公开(公告)号：US11826739B2

公开(公告)日：2023-11-28

申请号：US17302346

申请日：2021-04-30

申请人： Johnson Matthey Public Limited Company ,  Johnson Matthey Catalysts (Germany) GMBH

发明人： Nikki Jane Amos-Reichert ,  Daniel Avis ,  Juergen Bauer ,  Yannick Bidal ,  Guy Richard Chandler ,  Alexander Nicholas Michael Green ,  Neil Greenham ,  Matthew Eben Harris ,  Sofia Lopez-Orozco ,  Joerg Werner Muench ,  Paul Richard Phillips ,  Irene Piras

IPC分类号： B01J29/76 ,  B01J35/04 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08 ,  F01N3/20 ,  F01N3/28

CPC分类号： B01J29/76 ,  B01J29/763 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/04 ,  B01J37/082 ,  F01N3/2066 ,  F01N3/2803 ,  F01N2330/20 ,  F01N2370/04 ,  F01N2610/00

摘要： The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50% by weight by mixing together a crystalline small pore or medium pore molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.

公开(公告)号：US11779913B2

公开(公告)日：2023-10-10

申请号：US16352902

申请日：2019-03-14

申请人： Johnson Matthey Public Limited Company

发明人： Hai-Ying Chen ,  Joseph Fedeyko ,  Neil Greenham ,  Matthew Harris ,  Jing Lu ,  Yannick Bidal

IPC分类号： B01J21/12 ,  B01J23/42 ,  B01J23/56 ,  B01J29/74 ,  B01J35/00 ,  F01N3/10 ,  F01N3/20 ,  B01D53/94 ,  B01J29/76 ,  B01J37/02

CPC分类号： B01J35/0006 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/9468 ,  B01J21/12 ,  B01J23/42 ,  B01J29/763 ,  B01J37/0215 ,  B01J37/0244 ,  B01J37/0246 ,  F01N3/106 ,  F01N3/2066 ,  B01D2255/1021 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/30 ,  B01D2255/40 ,  B01D2255/50 ,  B01D2255/504 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/9032 ,  B01D2257/404 ,  B01D2257/406

摘要： 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; 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.

公开(公告)号：US10828603B2

公开(公告)日：2020-11-10

申请号：US15939419

申请日：2018-03-29

申请人： Johnson Matthey Public Limited Company

发明人： Hai-Ying Chen ,  Joseph Michael Fedeyko ,  Neil Greenham ,  Mikael Larsson ,  Jing Lu ,  Per Marsh ,  David Micallef ,  Andrew Newman

IPC分类号： B01D53/94 ,  F01N13/00 ,  F01N3/20 ,  F01N3/10 ,  B01J37/02 ,  B01J35/00 ,  B01J35/04 ,  B01J29/80 ,  B01D53/58 ,  B01J21/06 ,  B01J23/22 ,  B01J23/30 ,  B01J23/42 ,  B01J23/44 ,  B01J23/648 ,  B01J23/652 ,  F01N3/035

摘要： A catalyst article including a substrate with an inlet end and an outlet end, a first zone and a second zone, where the first zone comprises: a) an ammonia slip catalyst (ASC) bottom layer comprising a platinum group metal on a support; and b) an SCR layer comprising a second SCR catalyst, the SCR layer located over the ASC bottom layer; where the second zone comprises a catalyst (“second zone catalyst”) selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); wherein the ASC bottom layer extends into the second zone; and where the first zone is located upstream of the second zone. The ASC bottom layer may include a blend of: (1) the platinum group metal on a support and (2) a first SCR catalyst.