公开(公告)号：US20230077564A1

公开(公告)日：2023-03-16

申请号：US17931454

申请日：2022-09-12

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Daniel Robert AVIS ,  Alexander Nicholas Michael GREEN ,  Matthew Eben HARRIS ,  Oliver HEMMING ,  Loredana MANTAROSIE ,  Alanna Susan Murphy ,  Maria Pia RUGGERI

IPC: B01J23/72 ,  B01J23/10 ,  B01J37/30 ,  B01J29/04 ,  B01D53/94

Abstract: Catalyst compositions and methods of preparation comprising: exchanging a rare earth element into a molecular sieve; incorporating a promoter metal into the molecular sieve; wherein the rare earth element exchanging step and the promoter metal incorporation step are performed as separate steps.

公开(公告)号：US20250099944A1

公开(公告)日：2025-03-27

申请号：US18975022

申请日：2024-12-10

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Daniel Robert AVIS ,  Alexander Nicholas Michael GREEN ,  Matthew Eben HARRIS ,  Oliver HEMMING ,  Loredana MANTAROSIE ,  Alanna Susan Murphy ,  Maria Pia RUGGERI

IPC: B01J23/72 ,  B01D53/94 ,  B01J23/10 ,  B01J29/04 ,  B01J37/30

Abstract: Catalyst compositions and methods of preparation comprising: exchanging a rare earth element into a molecular sieve; incorporating a promoter metal into the molecular sieve; wherein the rare earth element exchanging step and the promoter metal incorporation step are performed as separate steps.

公开(公告)号：US20230130212A1

公开(公告)日：2023-04-27

申请号：US18048306

申请日：2022-10-20

Applicant: Johnson Matthey Public Limited Company

Inventor： Daniel Robert AVIS ,  Gavin BROWN ,  Alba CASTANON RODRIGUEZ ,  Alexander Nicholas Michael GREEN ,  Neil GREENHAM ,  Matthew Eben HARRIS ,  Oliver HEMMING ,  Carmelo IACONO ,  Caitlin Lucy JENKINS ,  Alanna Susan MURPHY ,  Paul Richard PHILLIPS

IPC: B01J29/80 ,  B01J29/76 ,  B01J29/68 ,  B01J27/053 ,  B01J37/30

Abstract: Catalyst compositions and methods of preparation comprising: preparing a promoter metal-molecular sieve catalyst composition comprising a promoter metal and a molecular sieve; and incorporating an iron salt into the promoter metal-molecular sieve catalyst composition.

公开(公告)号：US20240058751A1

公开(公告)日：2024-02-22

申请号：US18355425

申请日：2023-07-20

Applicant: Johnson Matthey Public Limited Company

Inventor： Kaneshalingam ARULRAJ ,  Daniel Robert AVIS ,  Guy Richard CHANDLER ,  Alexander Nicholas Michael GREEN ,  Matthew Eben HARRIS ,  Oliver HEMMING ,  Carmelo IACONO ,  Alanna Susan MURPHY ,  Paul Richard PHILLIPS ,  Maria Pia RUGGERI

IPC: B01D53/56 ,  F01N3/20 ,  B01J29/72

CPC classification number: B01D53/565 ,  F01N3/2066 ,  B01J29/723 ,  B01D2258/01 ,  B01D2257/404 ,  B01J2220/42 ,  B01J2229/20

Abstract: The present invention relates to a catalyst composition. More particularly, the present invention relates to a catalyst composition comprising a low SAR zeolite, copper in an amount of at least 2 wt %; and a rare earth element. The present invention also relates to a method for the manufacture of a catalyst composition. The present invention further relates to a catalyst article comprising a catalyst composition and a method for the treatment of an exhaust gas which comprises contacting an exhaust gas with a catalyst article comprising a catalyst composition.

公开(公告)号：US20230347326A1

公开(公告)日：2023-11-02

申请号：US18301310

申请日：2023-04-17

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Daniel AVIS ,  Rafal BARAN ,  Gavin BROWN ,  Alexander GREEN ,  Neil GREENHAM ,  Matthew HARRIS ,  Oliver HEMMING ,  Carmelo IACONO ,  Caitlin JENKINS ,  Alanna MURPHY ,  Paul PHILLIPS

IPC: B01J29/76 ,  B01J23/72 ,  B01J35/00 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94

CPC classification number: B01J29/7615 ,  B01J23/72 ,  B01J35/0006 ,  F01N3/208 ,  F01N3/2828 ,  B01D53/9418 ,  B01D53/9495 ,  B01D53/9472 ,  F01N2610/02 ,  F01N2370/04 ,  F01N2610/1453 ,  B01D2251/2062 ,  B01D2255/20738 ,  B01D2255/502 ,  B01D2255/20761 ,  B01D2255/9032

Abstract: A method of treating exhaust gas from a lean burn internal combustion engine is disclosed. The method comprises: introducing ammonia or an ammonia precursor into the exhaust gas upstream of an Fe-SCR catalyst, the Fe-SCR catalyst comprising iron and a zeolite; and contacting the exhaust gas with the Fe-SCR catalyst; wherein the amount of ammonia or ammonia precursor introduced into the exhaust gas upstream of the Fe-SCR catalyst is controlled to provide an ammonia-to-NOx molar ratio (ANR) in the exhaust gas contacting the Fe-SCR catalyst of from greater than 2 to 6.