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公开(公告)号：EP3600625A1
公开(公告)日：2020-02-05
申请号：EP18719357.8
申请日：2018-03-29
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公开(公告)号：EP3310477A1
公开(公告)日：2018-04-25
申请号：EP16733809.4
申请日：2016-06-16
发明人： LU, Jing , LARSSON, Mikael , MICALLEF, David
IPC分类号： B01J23/847 , B01J35/00 , B01J23/42 , B01D53/94 , B01J29/06 , B01J29/76 , B01J29/83 , B01J29/85 , B01J35/04 , B01J37/00 , F01N3/20
CPC分类号： B01D53/9418 , B01D53/9477 , B01D2255/1021 , B01D2255/20738 , B01D2255/20761 , B01D2255/9025 , B01D2255/904 , B01D2255/911 , B01J23/22 , B01J23/42 , B01J23/8472 , B01J29/06 , B01J29/072 , B01J29/076 , B01J29/723 , B01J29/7615 , B01J29/763 , B01J29/783 , B01J29/80 , B01J29/83 , B01J29/85 , B01J35/0006 , B01J35/04 , B01J37/0009 , B01J37/0244 , B01J37/0246 , B01J2029/062 , F01N3/2066 , F01N3/2828 , F01N13/16 , F01N2330/06 , F01N2370/04 , F01N2510/063 , F01N2510/068 , F01N2570/14 , F01N2570/18 , Y02A50/2325 , Y02A50/2344 , Y02C20/10 , Y02T10/24
摘要： A catalyst article having an extruded support having a plurality of channels through which exhaust gas flows during operation of an engine, and a single layer coating or a bi-layer coating on the support, where the extruded support contains a third SCR catalyst, the single layer coating and the bilayer-coating contain platinum on a support with low ammonia storage and a first SCR catalyst. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods for producing such articles are described. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described.
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3.发明公开
公开(公告)号：EP4283100A3
公开(公告)日：2024-02-28
申请号：EP23198352.9
申请日：2020-10-13
发明人： CHIFFEY, Andrew Francis , COLE, Kieran John , COOPER, Oliver , DALY, Christopher , GILBERT, Lee Alexander , HANLEY, Robert , MICALLEF, David , MOREAU, Francois , PHILLIPS, Paul , PLATT, George
IPC分类号： B01D53/94 , B01J23/58 , B01J35/00 , B01J37/02 , F01N3/10 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/63 , B01J35/56 , F01N13/00 , F01N3/28 , F01N3/021 , F01N3/24
摘要： A composite oxidation catalyst (14, 16, 18, 20) for use in an exhaust system for treating an exhaust gas produced by a vehicular heavy-duty diesel vehicle, and upstream of a particulate matter filter (44, 50) in the exhaust system comprises: a substrate (5), optionally a honeycomb flow-through substrate monolith, having a total length L and a longitudinal axis and having a substrate surface extending axially between a first substrate end (I) and a second substrate end (O); and three or more catalyst washcoat zones (1, 2, 3; or 1, 2, 3, 4) arranged axially in series on and along the substrate surface, wherein a first catalyst washcoat zone (1) having a length Li, wherein Li 2 , wherein L 2
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4.发明公开
公开(公告)号：EP3310461A1
公开(公告)日：2018-04-25
申请号：EP16734010.8
申请日：2016-06-17
发明人： LARSSON, Mikael , MICALLEF, David
IPC分类号： B01D53/94
CPC分类号： B01J29/763 , B01D53/9418 , B01D53/9436 , B01D53/9472 , B01D2255/1021 , B01D2255/1023 , B01D2255/2092 , B01D2255/50 , B01D2255/9037 , B01D2255/915 , B01J21/04 , B01J23/42 , B01J23/44 , B01J35/0006 , B01J35/04 , Y02C20/10 , Y02T10/22 , Y02T10/24
摘要： Catalyst articles having an ammonia slip catalyst (ASC) comprising a blend of platinum on a support with low ammonia storage and a first SCR catalyst, and a second catalyst, such as a diesel oxidation catalyst, a diesel exotherm catalyst (DEC), a NOx absorber, a selective catalytic reduction/passive NOx adsorber (SCR/PNA), a cold-start catalyst (CSC) or a three-way catalyst (TWC) are disclosed. The catalyst articles can also contain one or two additional SCR catalysts. The catalysts can be present in one of various configurations. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described.
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5.发明公开
公开(公告)号：EP3600619A1
公开(公告)日：2020-02-05
申请号：EP18714062.9
申请日：2018-03-19
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6.发明公开
公开(公告)号：EP4283100A2
公开(公告)日：2023-11-29
申请号：EP23198352.9
申请日：2020-10-13
发明人： CHIFFEY, Andrew Francis , COLE, Kieran John , COOPER, Oliver , DALY, Christopher , GILBERT, Lee Alexander , HANLEY, Robert , MICALLEF, David , MOREAU, Francois , PHILLIPS, Paul , PLATT, George
IPC分类号： F01N3/24
摘要： A composite oxidation catalyst (14, 16, 18, 20) for use in an exhaust system for treating an exhaust gas produced by a vehicular heavy-duty diesel vehicle, and upstream of a particulate matter filter (44, 50) in the exhaust system comprises: a substrate (5), optionally a honeycomb flow-through substrate monolith, having a total length L and a longitudinal axis and having a substrate surface extending axially between a first substrate end (I) and a second substrate end (O); and three or more catalyst washcoat zones (1, 2, 3; or 1, 2, 3, 4) arranged axially in series on and along the substrate surface, wherein a first catalyst washcoat zone (1) having a length Li, wherein Li 2 , wherein L 2
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公开(公告)号：EP4045176A1
公开(公告)日：2022-08-24
申请号：EP20793136.1
申请日：2020-10-16
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8.发明公开
公开(公告)号：EP3957387A1
公开(公告)日：2022-02-23
申请号：EP21195354.2
申请日：2020-06-26
发明人： CHIFFEY, Andrew , COLE, Kieran , COOPER, Oliver , DALY, Christopher , GILBERT, Lee , HANLEY, Robert , MICALLEF, David , MOREAU, Francois , PHILLIPS, Paul , PLATT, George
摘要： A composite oxidation catalyst (12) for use in an exhaust system for treating an exhaust gas produced by a vehicular compression ignition internal combustion engine, preferably for a heavy-duty diesel vehicle, and upstream of a particulate matter filter in the exhaust system, which composite oxidation catalyst (12) comprising: a substrate (5), preferably a honeycomb flow-through substrate monolith, having a total length L and a longitudinal axis and having a substrate surface extending axially between a first substrate end (I) and a second substrate end (O); and two catalyst washcoat zones (1; 2) arranged axially in series on and along the substrate surface, wherein a first catalyst washcoat zone (1) having a length L 1 , wherein L 1 2 , wherein L 2 0.8g/in 3 and wherein the particulate metal oxide in the washcoat overlayer has a mean pore diameter of ≥ 10 nm and/or the washcoat overlayer has a mean interparticle pore diameter of ≥ 10 nm, wherein the particulate metal oxide in the washcoat overlayer supports a platinum group metal, which is platinum or a combination of platinum and palladium at a Pt:Pd weight ratio of ≥ 1:1.
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公开(公告)号：EP3888774A1
公开(公告)日：2021-10-06
申请号：EP20217134.4
申请日：2020-12-23
发明人： CHIFFEY, Andrew Francis , COLE, Kieran , DALY, Christopher , MARSH, Per , MICALLEF, David , MOREAU, Francois , PLATT, George
摘要： A composite, zone-coated oxidation and exotherm generation catalyst (20) comprises: a substrate (5) having a total length L and a longitudinal axis and having a substrate surface extending axially between a first substrate end (I) and a second substrate end (O); two or more catalyst washcoat zones (1, 2, 3, 4) comprised of a first catalyst washcoat layer (6) comprising a refractory metal oxide support material and one or more platinum group metal components supported thereon and a second catalyst washcoat layer (7) different from the first catalyst washcoat layer (6) and comprising a refractory metal oxide support material and one or more platinum group metal components supported thereon, which two or more catalyst washcoat zones (1, 2, 3, 4) being arranged axially in series on and along the substrate surface, wherein a first catalyst washcoat zone (1) having a length L 1 , wherein L 1 2 , wherein L 2 48.8 g/l (>0.8g/in 3 ), wherein the particulate metal oxide is 100% ceria or a mixed oxide comprising ceria supporting a platinum group metal, which is platinum only or a combination of platinum and palladium at a Pt:Pd weight ratio of > 1:1, wherein a total platinum group metal loading in the first catalyst washcoat zone (1) defined in grams of platinum group metal per litre of substrate volume (g/l) is greater than the total platinum group metal loading in the second catalyst washcoat zone (2) and wherein the first catalyst washcoat zone (1) comprises one or more first alkaline earth metal components supported on the first refractory metal oxide support material.
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公开(公告)号：EP3723892A1
公开(公告)日：2020-10-21
申请号：EP18836635.5
申请日：2018-12-12
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