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：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：US11904305B2

公开(公告)日：2024-02-20

申请号：US17662377

申请日：2022-05-06

申请人： Johnson Matthey Public Limited Company

发明人： Daniel Avis ,  Alexander Nicholas Michael Green ,  Matthew Eben Harris ,  Carmelo Iacono ,  Caitlin Jenkins ,  Alanna Murphy

IPC分类号： F01N3/28 ,  B01J29/78 ,  B01D53/94

CPC分类号： B01J29/783 ,  B01D53/9418 ,  F01N3/2803 ,  B01D2255/2065 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/50 ,  F01N2370/04

摘要： 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.