公开(公告)号：US09993772B2

公开(公告)日：2018-06-12

申请号：US15183824

申请日：2016-06-16

Applicant: Johnson Matthey Public Limited Company

Inventor： Lee Gilbert ,  Colin Newman ,  Andrew Newman ,  Mikael Larsson

IPC: B01J21/04 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/72 ,  B01J23/745 ,  B01J29/76 ,  B01J35/04 ,  B01D53/94 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  F01N13/00

CPC classification number: B01D53/9468 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9472 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/9032 ,  B01D2255/9035 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2330/06 ,  F01N2510/063 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/1616 ,  Y02T10/24

Abstract: A catalytic article having a flow-through substrate having an inlet, an outlet, and an axial length; an SCR zone containing a first SCR catalyst; and an oxidation zone containing (a) an ASC zone and a DOC zone or (b) a mixed ASC and DOC zone, where the oxidation zone contains an ammonia oxidation catalyst and a DOC catalyst, the SCR zone is positioned on the substrate from the inlet end and extends less than the axial length of the substrate from the inlet, the DOC zone or the mixed ASC and DOC zone is position on the substrate from the outlet end, and when the DOC zone is present, the ASC zone is located between the SCR zone and the DOC zone. In other catalytic articles, the ASC zone further comprises a DEC catalyst. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described.

公开(公告)号：US20160367941A1

公开(公告)日：2016-12-22

申请号：US15183824

申请日：2016-06-16

Applicant: Johnson Matthey Public Limited Company

Inventor： Lee Gilbert ,  Colin Newman ,  Andrew Newman ,  Mikael Larsson

IPC: B01D53/94

CPC classification number: B01D53/9468 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9472 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/9032 ,  B01D2255/9035 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2330/06 ,  F01N2510/063 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/1616 ,  Y02T10/24

Abstract: A catalytic article having a flow-through substrate having an inlet, an outlet, and an axial length; an SCR zone containing a first SCR catalyst; and an oxidation zone containing (a) an ASC zone and a DOC zone or (b) a mixed ASC and DOC zone, where the oxidation zone contains an ammonia oxidation catalyst and a DOC catalyst, the SCR zone is positioned on the substrate from the inlet end and extends less than the axial length of the substrate from the inlet, the DOC zone or the mixed ASC and DOC zone is position on the substrate from the outlet end, and when the DOC zone is present, the ASC zone is located between the SCR zone and the DOC zone. In other catalytic articles, the ASC zone further comprises a DEC catalyst. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described.

Abstract translation: 一种具有流通基底的催化制品，其具有入口，出口和轴向长度; 含有第一SCR催化剂的SCR区; 以及包含（a）ASC区和DOC区的氧化区，或（b）混合的ASC和DOC区，其中氧化区含有氨氧化催化剂和DOC催化剂，SCR区从 入口端并且从入口延伸小于基底的轴向长度，DOC区或混合ASC和DOC区从出口端位于基底上，并且当DOC区存在时，ASC区位于 SCR区和DOC区。 在其它催化剂制品中，ASC区还包含DEC催化剂。 还描述了在SCR过程中使用催化制品的方法，其中氨的滑移量减少。

公开(公告)号：US09789442B2

公开(公告)日：2017-10-17

申请号：US15133392

申请日：2016-04-20

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Kieran Cole ,  Colin Newman ,  Isabel Tingay ,  Olivier Sonntag ,  Gudmund Smedler ,  Ruth Savage

IPC: F01N3/10 ,  B01D53/94 ,  F01N3/20 ,  F01N3/035 ,  B01D53/96 ,  F01N3/023 ,  F01N3/28 ,  F01N13/00

CPC classification number: B01D53/944 ,  B01D53/9477 ,  B01D53/96 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/903 ,  B01D2255/905 ,  B01D2258/012 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/2828 ,  F01N13/009 ,  F01N2260/04 ,  F01N2330/06 ,  F01N2330/60 ,  F01N2510/0682 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A catalytic aftertreatment system for a diesel engine exhaust gas is described. The system comprises a diesel oxidation catalyst (DOC) and an aftertreatment device located downstream of the diesel oxidation catalyst (DOC), which aftertreatment device requires periodic heat treatment, and means to generate a temperature increase within the aftertreatment device, said diesel oxidation catalyst (DOC) comprising an upstream zone of length from 0.5 to 2 inches (12.7-50.81 mm) of higher oxidation activity for hydrocarbons (HC) than the remainder of the diesel oxidation catalyst (DOC).

公开(公告)号：US09341098B2

公开(公告)日：2016-05-17

申请号：US13713349

申请日：2012-12-13

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Kieran Cole ,  Colin Newman ,  Isabel Tingay ,  Olivier Sonntag ,  Gudmund Smedler ,  Ruth Savage

IPC: F01N3/10 ,  F01N3/20 ,  B01J35/00 ,  B01J23/44 ,  B01D53/94 ,  F01N3/023 ,  F01N3/035 ,  B01J37/02 ,  B01J35/04

CPC classification number: F01N3/20 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/9032 ,  B01D2255/9202 ,  B01D2258/012 ,  B01J23/44 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0228 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/103 ,  F01N3/2066 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A catalytic aftertreatment system for a diesel engine exhaust gas is described. The system comprises a diesel oxidation catalyst (DOC) and an aftertreatment device located downstream of the diesel oxidation catalyst (DOC), which aftertreatment device requires periodic heat treatment, and means to generate a temperature increase within the aftertreatment device, said diesel oxidation catalyst (DOC) comprising an upstream zone of length from 0.5 to 2 inches (12.7-50.81 mm) of higher oxidation activity for hydrocarbons (HC) than the remainder of the diesel oxidation catalyst (DOC).

Abstract translation: 描述了用于柴油机废气的催化后处理系统。 该系统包括位于柴油机氧化催化剂（DOC）下游的柴油氧化催化剂（DOC）和后处理装置，该后处理装置需要周期性热处理，以及在后处理装置内产生升温的装置，所述柴油机氧化催化剂 DOC）包括比柴油氧化催化剂（DOC）的其余部分更高的烃类（HC）氧化活性的长度为0.5至2英寸（12.7-50.81mm）的上游区域。