公开(公告)号：US20190176128A1

公开(公告)日：2019-06-13

申请号：US16217463

申请日：2018-12-12

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： David MICALLEF ,  Andrew NEWMAN ,  Alex Connel PARSONS

IPC: B01J23/42 ,  B01J29/76 ,  B01J29/68 ,  B01J29/24 ,  F01N3/20

Abstract: Catalysts having a first catalyst coating and a second catalyst coating, the first catalyst coating including a blend of 1) Pt on a support, and 2) a molecular sieve, and the second catalyst coating including an SCR catalyst.

公开(公告)号：US20180058293A1

公开(公告)日：2018-03-01

申请号：US15685496

申请日：2017-08-24

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Per MARSH ,  Andrew NEWMAN ,  Christopher SMITH

IPC: F01N3/20 ,  F01N3/08 ,  F01N3/10 ,  F01N3/035 ,  F01N13/00 ,  B01D53/94 ,  B01J29/85 ,  B01J29/76

CPC classification number: F01N3/2066 ,  B01D53/9418 ,  B01D53/944 ,  B01D2255/20761 ,  B01J29/763 ,  B01J29/85 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0093 ,  F01N2370/04 ,  F01N2510/063 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2610/146 ,  Y02T10/24

Abstract: Systems and methods related to an exhaust gas purification system comprising: an injector for injecting ammonia or a compound decomposable to ammonia into the exhaust gas, positioned downstream of an engine; a Cu-SCR catalyst positioned downstream of the injector, wherein no oxidation catalysts exist between the Cu-SCR catalyst and the engine; wherein the exhaust gas entering the Cu-SCR catalyst comprises an NH3/NOx ratio of less than 1.2.

公开(公告)号：US20180280879A1

公开(公告)日：2018-10-04

申请号：US15935178

申请日：2018-03-26

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Heledd HOWELLS ,  David MICALLEF ,  Andrew NEWMAN ,  Neil GREENHAM

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

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.

公开(公告)号：US20160045868A1

公开(公告)日：2016-02-18

申请号：US14826238

申请日：2015-08-14

Applicant: Johnson Matthey Public Limited Company

Inventor： Olivier SONNTAG ,  Tim GENSCHOW ,  Andrew NEWMAN ,  Isabel Zoe TINGAY ,  Gudmund SMEDLER

IPC: B01D53/94 ,  B01J35/00 ,  B01J35/04 ,  B01J23/22 ,  B01J29/072

CPC classification number: B01D53/9418 ,  B01D53/8628 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2251/2062 ,  B01D2255/20723 ,  B01D2255/20761 ,  B01D2255/40 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/9155 ,  B01D2257/404 ,  B01J21/06 ,  B01J23/22 ,  B01J29/072 ,  B01J29/076 ,  B01J29/56 ,  B01J29/58 ,  B01J29/763 ,  B01J29/783 ,  B01J29/80 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0246 ,  B01J37/0248 ,  B01J2229/186 ,  F01N3/103 ,  F01N3/2066 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/18 ,  Y02T10/24

Abstract: Provided is a system for treating an exhaust gas comprising a first SCR catalyst zone comprising vanadium loaded on a metal oxide selected from TiO2, ZrO2, SiO2, CeO2, and Al2O3; and a second SCR catalyst zone comprising a copper loaded small-pore molecular sieve, wherein the first SCR catalyst zone is disposed upstream of the second SCR catalyst zone with respect to normal exhaust gas flow through the system. Also provided is a method for using the system to treat exhaust gas.

Abstract translation: 提供了一种处理排气的系统，其包括第一SCR催化剂区，其包含负载在选自TiO 2，ZrO 2，SiO 2，CeO 2和Al 2 O 3的金属氧化物上的钒; 以及包含铜负载的小孔分子筛的第二SCR催化剂区，其中所述第一SCR催化剂区相对于通过所述系统的正常废气流布置在所述第二SCR催化剂区的上游。 还提供了一种使用该系统来处理废气的方法。

公开(公告)号：US20160038878A1

公开(公告)日：2016-02-11

申请号：US14813646

申请日：2015-07-30

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Olivier SONNTAG ,  Tim GENSCHOW ,  Andrew NEWMAN ,  Isabel Zoe TINGAY ,  Gudmund SMEDLER

IPC: B01D53/94 ,  F02B37/00 ,  F01N3/20 ,  F01N3/08 ,  B01J29/80 ,  B01J29/072

CPC classification number: B01D53/9431 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9436 ,  B01D53/9472 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/904 ,  B01D2255/911 ,  B01D2255/9155 ,  B01D2258/012 ,  B01J29/072 ,  B01J29/46 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/80 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/0093 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/14 ,  F02B37/00 ,  Y02T10/24

Abstract: Provided is a system for treating an exhaust gas comprising a first SCR catalyst zone comprising an iron loaded medium- or large-pore molecular sieve having a first ammonia storage capacity; and a second SCR catalyst zone comprising a copper loaded small-pore molecular sieve having a second ammonia storage capacity, wherein the first SCR catalyst zone is disposed upstream of the second SCR catalyst zone with respect to normal exhaust gas flow through the system and wherein the second ammonia storage capacity is greater than the first ammonia storage capacity. Also provided is a method for using the system to treat exhaust gas.

Abstract translation: 本发明提供一种处理废气的系统，其包括第一SCR催化剂区域，该第一SCR催化剂区域包括具有第一氨储存能力的载有铁的中孔或大孔分子筛; 以及第二SCR催化剂区，其包含具有第二氨储存能力的铜负载小孔分子筛，其中所述第一SCR催化剂区相对于通过所述系统的正常废气流布置在所述第二SCR催化剂区的上游，并且其中 第二氨储存能力大于第一氨储存能力。 还提供了一种使用该系统来处理废气的方法。

公开(公告)号：US20200215520A1

公开(公告)日：2020-07-09

申请号：US16705713

申请日：2019-12-06

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Neil GREENHAM ,  Jing LU ,  Andrew NEWMAN

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

Abstract: 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：US20180280945A1

公开(公告)日：2018-10-04

申请号：US15938202

申请日：2018-03-28

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Neil GREENHAM ,  Jing LU ,  Andrew NEWMAN

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

Abstract: 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.