公开(公告)号：US09545602B2

公开(公告)日：2017-01-17

申请号：US14713453

申请日：2015-05-15

Applicant: Johnson Matthey Public Limited Company

Inventor： Olivier Sonntag ,  Tim Genschow ,  Gudmund Smedler ,  Andrew Peter Walker ,  Mikael Larsson ,  Penelope Markatou ,  Lingzhi Zhang ,  Jane Gast

IPC: B01D53/94 ,  B01J23/72 ,  F01N3/28 ,  B01D53/86 ,  B01J35/00 ,  B01J29/76 ,  B01J29/85 ,  B01J29/072 ,  B01J35/04 ,  F01N3/20

CPC classification number: B01D53/8628 ,  B01D53/9418 ,  B01D53/9472 ,  B01D2255/1021 ,  B01D2255/20761 ,  B01D2255/30 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/9035 ,  B01D2255/9037 ,  B01D2255/9155 ,  B01D2257/404 ,  B01D2258/012 ,  B01J29/072 ,  B01J29/763 ,  B01J29/85 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/2066 ,  F01N2370/04

Abstract: Provided is a catalytic article comprising (a) a flow through honeycomb substrate having channel walls; (b) a first NH3-SCR catalyst composition coated on and/or within the channel walls in a first zone; and (c) a second NH3-SCR catalyst composition coated on and/or within the channel walls in a second zone, provided that the first zone is upstream of the second zone and the first and second zones are adjacent or at least partially overlap; and wherein the first NH3-SCR catalyst comprises a first copper loaded molecular sieve having a copper to aluminum atomic ratio of about 0.1 to 0.375 and the second NH3-SCR catalyst comprises a second copper loaded molecular sieve having a copper-to-aluminum atomic ratio of about 0.3 to about 0.6.

Abstract translation: 提供一种催化制品，其包含（a）具有通道壁的通过蜂窝状基材的流动; （b）涂覆在第一区中的通道壁上和/或内部的第一NH 3 -SCR催化剂组合物; 并且（c）在第二区域中的通道壁上和/或内部涂覆第二NH3-SCR催化剂组合物，条件是第一区域位于第二区域的上游，并且第一和第二区域相邻或至少部分重叠; 并且其中所述第一NH 3 -SCR催化剂包含铜与铝原子比为约0.1至0.375的第一铜负载分子筛，所述第二NH 3 -SCR催化剂包含具有铜与铝原子比的第二铜负载分子筛 为约0.3至约0.6。

公开(公告)号：US09259684B2

公开(公告)日：2016-02-16

申请号：US13711138

申请日：2012-12-11

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Philip Gerald Blakeman ,  Gavin Michael Brown ,  Andrew Francis Chiffey ,  Jane Gast ,  Paul Richard Phillips ,  Raj Rao Rajaram ,  Glen Spreitzer ,  Andrew Peter Walker

IPC: B01J23/58 ,  B01D53/94 ,  B01J35/00 ,  F01N3/20 ,  F01N3/28 ,  B01J37/02 ,  B01J37/03 ,  B01J23/42 ,  B01J23/44 ,  B01J23/72 ,  B01J29/76 ,  B01J35/04 ,  B01J37/00 ,  F01N13/00 ,  F01N3/035 ,  B01J23/63 ,  B01J23/83 ,  B01J29/85

CPC classification number: B01D53/9418 ,  B01D53/944 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/502 ,  B01J23/42 ,  B01J23/44 ,  B01J23/63 ,  B01J23/72 ,  B01J23/83 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/85 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0036 ,  B01J37/0215 ,  B01J37/0246 ,  B01J37/038 ,  B01J2229/186 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/2803 ,  F01N13/009 ,  F01N2370/00 ,  F01N2510/0682 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust system 20 for an internal combustion engine comprises a) a first catalysed substrate monolith 12 comprising a first washcoat coating disposed in a first washcoat zone 16 of the substrate monolith and a second washcoat coating disposed in a second washcoat zone 18 of the substrate monolith, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one material supporting copper for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat; and b) a second catalysed substrate monolith 14 comprising a catalyst for selectively catalysing the reduction of oxides of nitrogen to dinitrogen with a nitrogenous reductant disposed downstream from the first catalysed substrate monolith.

Abstract translation: 用于内燃机的排气系统20包括：a）第一催化基材单块12，其包含设置在基材单块的第一修补基面涂层区域16中的第一修补基面涂层涂层和设置在基板单块的第二修补基面涂层区域18中的第二修补基面涂层涂层 ，其中所述第一修补基面涂层涂层包含包含至少一种铂族金属（PGM）和至少一种载体材料的催化剂组合物，其中当所述第一修补基面涂层涂层暴露于相对时，​​所述第一修补基面涂层涂层中的至少一个PGM容易挥发 包括相对高的温度的极端条件，其中第二修补基面涂层涂层包括至少一种支撑铜的材料，用于捕获挥发的PGM，并且其中第二修补基面涂层涂层被定向成接触与第一修补基面涂层接触的废气; 和b）第二催化底物整料14，其包含用于选择性催化将氮氧化物还原为二氮的催化剂，其中所述含氮还原剂位于第一催化底物整料的下游。

公开(公告)号：US09005559B2

公开(公告)日：2015-04-14

申请号：US14158889

申请日：2014-01-20

Applicant: Johnson Matthey Japan G.K. ,  Johnson Matthey Public Limited Company

Inventor： Satoshi Sumiya ,  Lifeng Wang ,  Hanako Oyamada ,  Philip Gerald Blakeman ,  Gavin Michael Brown ,  Sougato Chatterjee ,  Andrew Francis Chiffey ,  Jane Gast ,  Paul Richard Phillips ,  Raj Rao Rajaram ,  Andrew Peter Walker

IPC: B01D53/94 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  F01N3/28 ,  B01J37/02 ,  B01J29/068 ,  B01J37/03 ,  B01J35/00 ,  B01J29/06 ,  B01J29/74 ,  B01J29/76 ,  B01J35/04 ,  B01J20/18 ,  F01N3/20

CPC classification number: B01J29/763 ,  B01D53/9431 ,  B01D53/944 ,  B01D53/9477 ,  B01D2253/108 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2065 ,  B01D2255/207 ,  B01D2255/20707 ,  B01D2255/50 ,  B01D2255/902 ,  B01D2255/9022 ,  B01D2255/912 ,  B01D2258/012 ,  B01J20/18 ,  B01J21/04 ,  B01J21/12 ,  B01J23/42 ,  B01J23/44 ,  B01J29/06 ,  B01J29/068 ,  B01J29/7007 ,  B01J29/7415 ,  B01J29/7615 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/038 ,  B01J2229/186 ,  F01N3/208 ,  F01N3/2803 ,  Y02A50/2341 ,  Y10S502/52712

Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.

Abstract translation: 本发明提供了一种废气净化氧化催化剂，特别是一种用于清洗从压缩点火式（特别是柴油发动机）的内燃机排出的废气的氧化催化剂。 本发明还涉及一种催化基材整料，其包含在用于处理从稀燃内燃机排出的废气的基板单块上的氧化催化剂。 特别地，本发明涉及包含第一修补基面涂层和第二修补基面涂层的催化底物整料，其中第二修补基面涂层涂层设置在第一修补基面涂层涂层上方的层中。

公开(公告)号：US08986635B2

公开(公告)日：2015-03-24

申请号：US14199290

申请日：2014-03-06

Applicant: Johnson Matthey Public Limited Company

Inventor： Philip Gerald Blakeman ,  Sougato Chatterjee ,  Andrew Francis Chiffey ,  Jane Gast ,  Paul Richard Phillips ,  Raj Rao Rajaram ,  Andrew Peter Walker

IPC: B01D53/94 ,  B01J33/00 ,  F01N3/10 ,  F01N3/18 ,  F01N3/20 ,  F01N3/08 ,  F01N13/02 ,  F01N3/035

CPC classification number: B01D53/9495 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0828 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/2066 ,  F01N13/02 ,  F01N2510/06 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10S502/516 ,  Y10S502/521

Abstract: Methods are disclosed for reducing or preventing a selective catalytic reduction (SCR) catalyst disposed on a first substrate monolith in an exhaust system of a lean-burn internal combustion engine from becoming poisoned with platinum group metal (PGM) which may volatilize from a catalyst composition comprising PGM disposed on at least one second substrate monolith upstream of the SCR catalyst. The methods comprise adsorbing volatilized PGM in at least one PGM trapping material, which is disposed on a third substrate monolith disposed between the first substrate monolith and the second substrate monolith.

Abstract translation: 公开了用于减少或防止在稀燃内燃机的排气系统中设置在第一基板单块上的选择性催化还原（SCR）催化剂变得被可能从催化剂组合物挥发的铂族金属（PGM）中毒的方法 包括设置在SCR催化剂上游的至少一个第二衬底整体上的PGM。 所述方法包括将挥发的PGM吸附在至少一个PGM捕获材料中，所述PGM捕获材料设置在设置在第一衬底整料和第二衬底整料之间的第三衬底整体上。