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公开(公告)号：US20190301334A1
公开(公告)日：2019-10-03
申请号：US16361450
申请日：2019-03-22
摘要： 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 disposed on at least a portion of the first surface, wherein the first layer comprises a washcoat of an ammonia slip catalyst composition comprising one or more platinum group metals supported on a particulate metal oxide support material, and wherein a layer comprising a washcoat of SCR catalyst composition is disposed on a surface in the one or more channels, wherein at least the portion of the first surface on which the first layer is disposed comprises a compound of copper, iron, cerium or zirconium or a mixture of any two or more thereof.
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公开(公告)号：US09815048B2
公开(公告)日：2017-11-14
申请号：US15482966
申请日：2017-04-10
发明人： Guy Richard Chandler , Alexander Nicholas Michael Green , Joanne Elizabeth Melville , Paul Richard Phillips , Stuart David Reid
IPC分类号： B01J29/06 , B01J29/88 , B01J29/80 , B01J29/76 , B01J29/00 , B01J35/00 , B01J35/04 , B01J37/02 , B01J37/00 , B01D53/94 , F01N3/035 , F01N3/08 , F01N3/20 , B01J29/72 , B01J29/70 , B01J29/78 , B01J29/74 , B01J29/035 , B01D53/56 , B01D53/86 , B01J37/30
CPC分类号： B01J29/88 , B01D53/56 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D53/9422 , B01D2255/20761 , B01D2255/50 , B01D2255/502 , B01D2255/9032 , B01D2258/012 , B01J29/005 , B01J29/0352 , B01J29/0354 , B01J29/0356 , B01J29/0358 , B01J29/072 , B01J29/46 , B01J29/70 , B01J29/7007 , B01J29/7049 , B01J29/7065 , B01J29/72 , B01J29/7215 , B01J29/723 , B01J29/74 , B01J29/7415 , B01J29/743 , B01J29/76 , B01J29/7615 , B01J29/763 , B01J29/78 , B01J29/7815 , B01J29/783 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0009 , B01J37/0215 , B01J37/0244 , B01J37/0246 , B01J37/08 , B01J37/30 , B01J2029/062 , F01N3/035 , F01N3/0842 , F01N3/105 , F01N3/2066 , F01N13/009 , F01N2330/06 , F01N2370/04 , F01N2510/06 , Y02A50/2325 , Y02C20/10 , Y02T10/24
摘要： A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.
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公开(公告)号：US09587591B2
公开(公告)日：2017-03-07
申请号：US14633324
申请日：2015-02-27
IPC分类号： F01N3/00 , F02M25/07 , B01J23/34 , F01N3/08 , F01N3/10 , F01N3/20 , F02M25/10 , F01N3/023 , F01N3/035 , F01N13/00 , B01D53/94
CPC分类号： F02M26/35 , B01D53/9413 , B01D53/9431 , B01D53/9436 , B01D53/9477 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2251/408 , B01D2251/606 , B01D2253/112 , B01D2253/1124 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/202 , B01D2255/2022 , B01D2255/2025 , B01D2255/2027 , B01D2255/204 , B01D2255/2042 , B01D2255/2045 , B01D2255/2047 , B01D2255/2065 , B01D2255/2068 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/20769 , B01D2255/20776 , B01D2255/20784 , B01D2255/2092 , B01D2255/30 , B01D2255/40 , B01D2255/407 , B01D2255/50 , B01D2255/502 , B01D2255/504 , B01D2255/91 , B01D2255/9205 , B01D2255/9207 , B01D2256/00 , B01D2257/404 , B01J23/34 , F01N3/0231 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N2610/02 , F02M25/10 , F02M26/06 , Y02C20/10 , Y02T10/121 , Y02T10/24
摘要： An exhaust system for an internal combustion engine is disclosed. The exhaust system comprises a particulate filter, one or more NOx reduction catalysts, and a low pressure exhaust gas recirculation (EGR) circuit for connecting the exhaust system downstream of the filter and the one or more NOx reduction catalysts to an intake of the engine. The EGR circuit comprises a N2O-producing catalyst.
摘要翻译： 公开了一种用于内燃机的排气系统。 排气系统包括微粒过滤器，一个或多个NOx还原催化剂和用于将过滤器下游的排气系统和一个或多个NOx还原催化剂连接到发动机的进气口的低压排气再循环（EGR）回路。 EGR回路包括产生N2O的催化剂。
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公开(公告)号：US09242212B2
公开(公告)日：2016-01-26
申请号：US14263337
申请日：2014-04-28
IPC分类号： F01N3/00 , B01D53/94 , B01J29/00 , F01N3/20 , F01N3/035 , B01J37/02 , B01J37/30 , B01J35/00 , B01J29/76 , B01J29/85 , B01J35/04 , B01J29/072 , B01J29/46 , B01J29/72 , B01J29/06
CPC分类号： B01D53/9418 , B01D53/9472 , B01D2255/50 , B01D2255/9032 , B01D2255/9035 , B01D2255/9037 , B01J29/005 , B01J29/072 , B01J29/46 , B01J29/723 , B01J29/76 , B01J29/85 , B01J35/0006 , B01J35/04 , B01J37/0244 , B01J37/0246 , B01J37/0248 , B01J37/30 , B01J2029/062 , F01N3/035 , F01N3/2066 , F01N2510/063 , F01N2510/0682 , Y02T10/24
摘要： Provided is an SCRF article having different SCR catalysts compositions disposed on a wall-flow filter substrate in zones that are arranged in series with respect to the inlet and outlet faces of the substrate. Also provided is method of reducing backpressure and ammonia slip that involves the use of such SCRF articles.
摘要翻译： 提供了一种SCRF制品，其具有不同的SCR催化剂组合物，其布置在相对于基材的入口和出口面串联布置的区域中的壁流式过滤器基材上。 还提供了减少背压和氨滑移的方法，涉及使用这种SCRF制品。
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5.发明授权公开(公告)号：US11000836B2
公开(公告)日：2021-05-11
申请号：US16392768
申请日：2019-04-24
发明人： Guy Richard Chandler , Jillian Elaine Collier , Alexander Nicholas Michael Green , Desiree Duran-Martin , Paul Richard Phillips , Raj Rao Rajaram , Stuart David Reid
IPC分类号： B01J29/06 , B01J29/072 , B01J37/14 , B01J37/18 , B01J37/12 , B01J37/16 , B01D53/56 , B01J37/00 , B01D53/94 , B01J29/76 , B01J29/46 , B01J29/68 , B01J29/85 , C01B39/02 , C01B39/44 , C01B39/54
摘要： SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.
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公开(公告)号：US10532344B2
公开(公告)日：2020-01-14
申请号：US16273271
申请日：2019-02-12
发明人： Guy Richard Chandler , Paul Richard Phillips , Stuart David Reid , Wolfgang Strehlau , Daniel Swallow
IPC分类号： B01J35/00 , B01J23/46 , F01N3/28 , B01D53/94 , B01J21/04 , B01J23/00 , B01J23/02 , B01J23/10 , B01J23/44 , B01J35/04 , B01J35/10 , B01J37/02 , B01J37/08 , F01N3/08
摘要： A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.
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公开(公告)号：US10179329B2
公开(公告)日：2019-01-15
申请号：US14944273
申请日：2015-11-18
发明人： Paul Richard Phillips , Guy Richard Chandler , Alexander Nicholas Michael Green , Matthew Eben Harris , James Alexander Wylie , Miroslaw Gall , Garry Adam Burgess
IPC分类号： B01J21/04 , B01J21/06 , B01J21/08 , B01J21/12 , B01J23/10 , B01J23/44 , B01J23/56 , B01J23/63 , B01J23/66 , B01J23/70 , B01J23/72 , B01J23/76 , B01J23/83 , B01J23/84 , B01J23/89 , B01J29/00 , B01D53/94 , B01J29/76 , B01J29/74
摘要： A catalyst article comprises an SCR catalyst and a NOx adsorber catalyst, where each of these catalysts comprise a metal molecular sieve, each with a different metal. The catalyst article can be close coupled with other components to give a NOX performance advantage from cold start to a combined DOC and SCRF system. Higher NOX conversion is also shown in under-floor location due to NOx storage before SCR light off and selective NH3 slip control, allowing higher NH3 fill levels. Systems comprising the catalyst article and methods of using the catalyst article to give improved hydrocarbon and carbon monoxide control, as well as ammonia slip control, are described. The systems can include flow-through or wall-flow monoliths.
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公开(公告)号：US09610571B2
公开(公告)日：2017-04-04
申请号：US14845312
申请日：2015-09-04
发明人： Joseph M. Fedeyko , Hai-Ying Chen , Guy Richard Chandler , Alexander Nicholas Michael Green , Debnath De , Shadab Mulla , Wendy Manning , Philip Gerald Blakeman
IPC分类号： B01J29/00 , B01J29/04 , B01J29/064 , B01J29/80 , B01D53/94 , B01J29/76 , B01J29/85 , F01N3/20 , F01N3/035
CPC分类号： B01J29/005 , B01D53/9418 , B01D2251/2062 , B01D2255/1021 , B01D2255/1023 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/30 , B01D2255/50 , B01D2255/91 , B01D2255/9155 , B01D2257/404 , B01J23/42 , B01J23/44 , B01J29/7015 , B01J29/763 , B01J29/85 , B01J35/0006 , B01J35/04 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/2842 , F01N2610/02 , Y02T10/24
摘要： Provided is a catalyst for the selective reduction of NOx comprising a two molecular sieve materials having a CHA structure, wherein the first molecular sieve has a mean crystal size of about 0.01 to 1 μm and the second molecular sieve has a mean crystal size of about 1-5 μm, and wherein the first molecular sieve contains a first extra-framework metal, the second molecular sieve contains a second extra-framework metal, and wherein said first and second extra-framework metals are independently selected from the group consisting of cesium, copper, nickel, zinc, iron, tin, tungsten, molybdenum, cobalt, bismuth, titanium, zirconium, antimony, manganese, chromium, vanadium, niobium, and combinations thereof.
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公开(公告)号：US20170087513A1
公开(公告)日：2017-03-30
申请号：US15279511
申请日：2016-09-29
CPC分类号： B01D53/9418 , B01D53/9431 , B01D53/944 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/2073 , B01D2255/20738 , B01D2255/20761 , B01D2255/915 , B01D2258/012 , B01J23/002 , B01J23/34 , B01J23/83 , B01J29/763 , B01J35/04 , B01J37/0215 , B01J37/0246 , B01J37/10 , B01J2523/00 , F01N3/035 , F01N3/2066 , F01N2370/02 , Y02T10/24 , B01J2523/17 , B01J2523/3712 , B01J2523/48 , B01J2523/842
摘要： A catalytic filter is provided having a mixture of an SCR catalyst and soot oxidation catalyst where the soot oxidation catalyst is a copper doped ceria, iron doped ceria or manganese doped ceria. The mixture of an SCR catalyst and soot oxidation catalyst provides for a lowering of the peak oxidation temperature for soot removal from the filter. The use of the filter allows for improved soot combustion and reduces the susceptibility of an SCR catalyst contained on a filter to deterioration. The soot oxidation catalyst also improves the resistance of the SCR catalyst to poisoning and subsequent deterioration of SCR performance.
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公开(公告)号：US09527031B2
公开(公告)日：2016-12-27
申请号：US14267559
申请日：2014-05-01
CPC分类号： B01D53/94 , B01D2255/1021 , B01D2255/106 , B01D2255/202 , B01D2255/204 , B01D2255/2063 , B01D2255/207 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , F01N3/0222 , F01N3/0231 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/10 , F01N3/2073 , F01N3/28 , F01N2240/18 , F01N2240/25 , F01N2250/02 , F01N2250/12 , F01N2250/14 , F01N2510/0682 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F01N2570/18 , Y02A50/2344 , Y02T10/24
摘要： An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidizing nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NOx absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.
摘要翻译： 一种用于稀燃内燃机（12）的排气系统（10）包括：第一衬底整料（16），包括用于氧化一氧化氮（NO）的催化剂，所述催化剂包含催化氧化组分，随后由第二衬底整料（18） 其是具有入口通道和出口通道的壁流式过滤器，其中入口通道包括NOx吸收剂催化剂（20），出口通道包含用氮还原剂选择性催化还原（22）氮氧化物的催化剂。
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