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2.发明公开FILTER FOR FILTERING PARTICULATE MATTER FROM EXHAUST GAS EMITTED FROM A COMPRESSION IGNITION ENGINE 审中-公开滤波器用于颗粒材料从排出的自点火废气A MOTOR
公开(公告)号：EP2401059A1
公开(公告)日：2012-01-04
申请号：EP10707949.3
申请日：2010-02-26
发明人： ARNOLD, Louise , BRISLEY, Robert , CHANDLER, Guy Richard , CHIFFEY, Andrew Francis , FLANAGAN, Keith Anthony , GREENWELL, David , MORGAN, Christopher
IPC分类号： B01D53/94 , B01J29/00 , B01J29/08 , B01J29/10 , B01J29/40 , B01J29/46 , B01J35/02 , B01J35/04 , B01J35/10 , F01N3/035
摘要： A filter for filtering particulate matter (PM) from exhaust gas emitted from a positive ignition engine comprises a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a catalytic surface washcoat layer comprising a plurality of solid particles, wherein the catalytic surface washcoat layer substantially covers surface pores of the porous structure, wherein the porous structure of the washcoated porous substrate contains pores of a second mean pore size provided by the catalytic surface washcoat layer, wherein the pores of the washcoated porous substrate are defined in part by spaces between the particles (interparticle pores) in the washcoat, wherein the second mean pore size is less than the first mean pore size and wherein the catalytic washcoat is a three-way catalyst comprising: platinum and rhodium; palladium and rhodium; or platinum, palladium and rhodium as active components supported on a high surface area oxide; and an oxygen storage component.
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3.发明授权
公开(公告)号：EP2401059B1
公开(公告)日：2020-09-23
申请号：EP10707949.3
申请日：2010-02-26
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公开(公告)号：EP3384977A1
公开(公告)日：2018-10-10
申请号：EP18157721.4
申请日：2013-04-24
发明人： GREENWELL, David
IPC分类号： B01D53/94 , F01N3/035 , B01J23/46 , F01N3/10 , B01J35/00 , B01J23/63 , B01J35/10 , B01J37/02 , B01J35/04 , B01J37/00
CPC分类号： B01D53/9454 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/9032 , B01D2255/908 , B01D2255/9155 , B01D2258/014 , B01J23/464 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J35/10 , B01J35/1033 , B01J35/1076 , B01J37/0036 , B01J37/0248 , F01N3/035 , F01N3/101 , F01N2250/02 , F01N2330/48 , F01N2510/068 , F01N2510/0682 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F02B5/00 , Y02T10/22
摘要： A catalysed filter for filtering particulate matter from exhaust gas emitted from a positive ignition internal combustion engine comprises a porous substrate having a total substrate length and having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a three-way catalyst washcoat composition comprising a combination of precious metals selected from the group consisting of (i) platinum and rhodium; (ii) palladium and rhodium; and (iii) platinum, palladium and rhodium, supported on a high surface area oxide, and an oxygen storage component, wherein the porous structure of the washcoated porous substrate contains pores of a second mean pore size, wherein the second mean pore size is less than the first mean pore size, which three-way catalyst washcoat being axially arranged on the porous substrate as a first zone comprising the inlet surfaces of a first substrate length less than the total substrate length and a second zone comprising the outlet surfaces of a second substrate length less than the total substrate length, wherein the sum of the substrate length in the first zone and the substrate length in the second zone ≥ 110%, wherein the substrate length in the first zone is the same as or different from that of the second zone and wherein:
(i) a washcoat loading in the first zone > second zone; or
(ii) both a washcoat loading and a total precious metal loading in the first zone > second zone.-
公开(公告)号：EP2841184B1
公开(公告)日：2018-02-21
申请号：EP13719149.0
申请日：2013-04-24
发明人： GREENWELL, David
IPC分类号： B01D53/94 , F01N3/035 , F01N3/10 , B01J23/46 , B01J35/00 , B01J23/63 , B01J35/10 , B01J37/02 , B01J35/04 , B01J37/00
CPC分类号： B01D53/9454 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/9032 , B01D2255/908 , B01D2255/9155 , B01D2258/014 , B01J23/464 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J35/10 , B01J35/1033 , B01J35/1076 , B01J37/0036 , B01J37/0248 , F01N3/035 , F01N3/101 , F01N2250/02 , F01N2330/48 , F01N2510/068 , F01N2510/0682 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F02B5/00 , Y02T10/22
摘要： A catalyzed filter for a positive ignition internal combustion engine comprises a porous filtering substrate having a total substrate length coated with a three-way catalyst washcoat composition comprising at least one precious metal selected from the group consisting of rhodium and one or both of platinum and palladium supported on a high surface area oxide, and an oxygen storage component, which composition being axially shared by a first zone comprising inlet surfaces of a first substrate length second zone; and a total precious metal loading in the first zone>second zone.
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6.发明公开POSITIVE IGNITION ENGINE AND EXHAUST SYSTEM COMPRISING THREE-WAY CATALYSED FILTER 审中-公开火花点火式发动机和排气系统催化DREIWEGFILTER
公开(公告)号：EP2964365A1
公开(公告)日：2016-01-13
申请号：EP14705407.6
申请日：2014-02-14
发明人： CLOWES, Lucy , DESTECROIX, Oliver , GOODWIN, John Benjamin , GREENWELL, David , HOWARD, Michael Anthony , SCOTNEY, Christopher Charles John
CPC分类号： B01D53/945 , B01D2255/102 , B01D2255/908 , B01D2255/9202 , B01J35/04 , Y02T10/22
摘要： A positive ignition engine comprises an exhaust system for a vehicular positive ignition internal combustion engine, which exhaust system comprising a filter for filtering particulate matter from exhaust gas emitted from the vehicular positive ignition internal combustion engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the porous substrate is coated at least in part with a three-way catalyst washcoat comprising a platinum group metal and a plurality of solid particles, wherein the plurality of solid particles comprises at least one base metal oxide and at least one oxygen storage component which is a mixed oxide or composite oxide comprising cerium, wherein the mixed oxide or composite oxide comprising cerium and/or the at least one base metal oxide has a median particle size (D50) less than 1µm and wherein the platinum group metal is selected from the group consisting of: (a) platinum and rhodium; (b) palladium and rhodium; (c) platinum, palladium and rhodium; (d) palladium only; or (e) rhodium only.
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公开(公告)号：EP2841184A2
公开(公告)日：2015-03-04
申请号：EP13719149.0
申请日：2013-04-24
发明人： GREENWELL, David
CPC分类号： B01D53/9454 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/9032 , B01D2255/908 , B01D2255/9155 , B01D2258/014 , B01J23/464 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J35/10 , B01J35/1033 , B01J35/1076 , B01J37/0036 , B01J37/0248 , F01N3/035 , F01N3/101 , F01N2250/02 , F01N2330/48 , F01N2510/068 , F01N2510/0682 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F02B5/00 , Y02T10/22
摘要： A catalyzed filter for a positive ignition internal combustion engine comprises a porous filtering substrate having a total substrate length coated with a three-way catalyst washcoat composition comprising at least one precious metal selected from the group consisting of rhodium and one or both of platinum and palladium supported on a high surface area oxide, and an oxygen storage component, which composition being axially shared by a first zone comprising inlet surfaces of a first substrate length second zone; and a total precious metal loading in the first zone>second zone.
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