公开(公告)号：US07422628B2

公开(公告)日：2008-09-09

申请号：US10830351

申请日：2004-04-22

申请人： John S. Foong ,  Jeffrey B. Hoke

发明人： John S. Foong ,  Jeffrey B. Hoke

IPC分类号： B01D53/02

CPC分类号： F02M35/10222 ,  B01D53/0407 ,  B01D2253/102 ,  B01D2253/1085 ,  B01D2253/25 ,  B01D2257/702 ,  B01D2258/01 ,  B01D2259/4146 ,  B01D2259/4516 ,  B01D2259/4566 ,  F02D21/08 ,  F02M25/08 ,  F02M25/0854 ,  F02M26/17 ,  F02M35/024 ,  F02M35/04 ,  F02M35/10013

摘要： A hydrocarbon adsorption unit for recovery of volatile hydrocarbons which emanate from several sources and which would otherwise be released into the atmosphere through the air cleaner of an automobile engine when the engine is shut-off. The unit is positioned in the air intake system such that all air flowing through the engine passes through the unit. The unit comprises a housing having an air inlet and an air outlet. The housing contains a substrate and a volatile hydrocarbon adsorber material coated on the surface of the substrate. The adsorber material may be silica gel, a molecular sieve and/or activated carbon. The material further contains a binder that will cause the material to adhere to the surface of the substrate.

摘要翻译： 一种碳氢化合物吸附装置，用于回收挥发性碳氢化合物，这些挥发性烃类从多个来源发出，当发动机关闭时，其将被汽车发动机的空气净化器释放到大气中。 该单元位于进气系统中，使得流过发动机的所有空气通过该单元。 该单元包括具有空气入口和空气出口的壳体。 壳体包含涂覆在基底表面上的基底和挥发性烃吸附材料。 吸附剂材料可以是硅胶，分子筛和/或活性炭。 该材料还含有将导致材料粘附到基底表面的粘合剂。

公开(公告)号：US07795172B2

公开(公告)日：2010-09-14

申请号：US10874051

申请日：2004-06-22

申请人： John S. Foong ,  Zhicheng Hu

发明人： John S. Foong ,  Zhicheng Hu

IPC分类号： B01J23/00 ,  B01J21/00 ,  B01J20/00 ,  B01J29/00

CPC分类号： B01J37/0244 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/908 ,  B01J23/63 ,  B01J37/0248 ,  Y02A50/2324 ,  Y02T10/22

摘要： A layered exhaust treatment catalyst comprising: (a) a carrier such as cordierite; (b) a first layer deposited on the carrier comprising a palladium metal component, a platinum metal component and an oxygen storage component such as ceria supported on a refractory metal oxide such as gamma-alumina; and (c) a second layer deposited on the first layer comprising a rhodium metal component, a platinum metal component and an oxygen storage component such as ceria supported on a refractory metal oxide such as gamma-alumina. Preferably, the catalyst also includes a bottom layer interposed between the carrier and the first layer. The bottom layer comprises an oxygen storage component such as ceria supported on a refractory metal oxide such as gamma-alumina. The amount of the oxygen storage component of the catalyst may be “tuned”, i.e., adjusted, to meet the needs of a vehicle's on-board diagnostic (“OBD”) catalyst efficiency monitoring system, without adversely affecting the performance of the catalyst.

摘要翻译： 一种层状废气处理催化剂，包括：（a）载体如堇青石; （b）沉积在载体上的第一层，包括钯金属组分，铂金属组分和负载在诸如γ-氧化铝的难熔金属氧化物上的氧化铈等储氧组分; 和（c）沉积在第一层上的第二层，包括铑金属组分，铂金属组分和负载在诸如γ-氧化铝的难熔金属氧化物上的氧化铈的储氧组分。 优选地，催化剂还包括插入载体和第一层之间的底层。 底层包含负载在难熔金属氧化物如γ-氧化铝上的氧存储组分如二氧化铈。 催化剂的储氧组分的量可以“调整”，即调节，以满足车辆车载诊断（“OBD”）催化剂效率监测系统的需要，而不会不利地影响催化剂的性能。

公开(公告)号：US07022644B2

公开(公告)日：2006-04-04

申请号：US10079450

申请日：2002-02-20

申请人： John S. Foong ,  Harold N. Rabinowitz

发明人： John S. Foong ,  Harold N. Rabinowitz

IPC分类号： B01J23/02

CPC分类号： B01D53/945 ,  B01J23/58 ,  B01J23/63 ,  B01J37/0244 ,  B01J37/0248 ,  F01N3/2803 ,  Y02T10/22

摘要： Hydrogen sulfide formation is suppressed by a three-way conversion catalyst having an underlayer and a topcoat overlying the under layer. The under layer is prepared by dispersing a Group IIa metal oxide such as an oxide of magnesium, calcium, barium or strontium on a carrier such as a refractory metal oxide monolith. A topcoat overlying the undercoat is comprised of a three-way conversion catalyst material such as a platinum-group metal catalytic component, e.g., platinum, palladium, rhodium or mixtures thereof.

公开(公告)号：US06764665B2

公开(公告)日：2004-07-20

申请号：US10003663

申请日：2001-10-26

申请人： Michel Deeba ,  John J. Steger ,  Harold N. Rabinowitz ,  John S. Foong

发明人： Michel Deeba ,  John J. Steger ,  Harold N. Rabinowitz ,  John S. Foong

IPC分类号： B01D5356

CPC分类号： B01D53/945 ,  B01D53/865 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/902 ,  B01D2255/9025 ,  B01D2255/908 ,  B01D2255/9207 ,  B01J23/63 ,  B01J37/0244 ,  Y02T10/22

摘要： The present invention relates to a layered catalyst composite of the type generally referred to as a three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. The structure of the layered catalyst composite of the present invention is designed wherein there are three layers in conjunction with a carrier: a first layer deposited on the carrier and comprising a high surface area refractory metal oxide; a second layer deposited on the first layer and comprising palladium and/or platinum deposited on a high surface area refractory metal oxide, and having substantially no oxygen storage components; and a third layer deposited on the second layer and comprising platinum and/or rhodium as well as an oxygen storage component, deposited on a high surface area refractory metal oxide.

摘要翻译： 本发明涉及一种具有同时催化烃和一氧化碳的氧化和还原氮氧化物的能力的通常称为三元转化催化剂的层状催化剂复合物。 设计本发明的层状催化剂复合材料的结构，其中有三层结合载体：沉积在载体上并包含高表面积的难熔金属氧化物的第一层; 沉积在第一层上并包含沉积在高表面积难熔金属氧化物上的钯和/或铂，并且基本上没有储氧组分的第二层; 以及沉积在第二层上并且包含铂和/或铑以及沉积在高表面积难熔金属氧化物上的储氧组分的第三层。

公开(公告)号：US20090031898A1

公开(公告)日：2009-02-05

申请号：US12188029

申请日：2008-08-07

申请人： John S. Foong ,  Jeffrey Hoke

发明人： John S. Foong ,  Jeffrey Hoke

IPC分类号： B01D53/92

CPC分类号： F02M35/10222 ,  B01D53/0407 ,  B01D2253/102 ,  B01D2253/1085 ,  B01D2253/25 ,  B01D2257/702 ,  B01D2258/01 ,  B01D2259/4146 ,  B01D2259/4516 ,  B01D2259/4566 ,  F02D21/08 ,  F02M25/08 ,  F02M25/0854 ,  F02M26/17 ,  F02M35/024 ,  F02M35/04 ,  F02M35/10013

摘要： A hydrocarbon adsorption unit for recovery of volatile hydrocarbons which emanate from several sources and which would otherwise be released into the atmosphere through the air cleaner of an automobile engine when the engine is shut-off. The unit is positioned in the air intake system such that all air flowing through the engine passes through the unit. The unit comprises a housing having an air inlet and an air outlet. The housing contains a substrate and a volatile hydrocarbon adsorber material coated on the surface of the substrate. The adsorber material may be silica gel, a molecular sieve and/or activated carbon. The material further contains a binder that will cause the material to adhere to the surface of the substrate.

摘要翻译： 一种碳氢化合物吸附装置，用于回收挥发性碳氢化合物，这些挥发性烃类从多个来源发出，当发动机关闭时，其将被汽车发动机的空气净化器释放到大气中。 该单元位于进气系统中，使得流过发动机的所有空气通过该单元。 该单元包括具有空气入口和空气出口的壳体。 壳体包含涂覆在基底表面上的基底和挥发性烃吸附材料。 吸附剂材料可以是硅胶，分子筛和/或活性炭。 该材料还含有将导致材料粘附到基底表面的粘合剂。