公开(公告)号：US20150352494A1

公开(公告)日：2015-12-10

申请号：US14732499

申请日：2015-06-05

Applicant: Clean Diesel Technologies, Inc.

Inventor： Randal L. Hatfield ,  Zahra Nazarpoor ,  Johnny T. Ngo ,  Edward J. Lee ,  Stephen J. Golden

IPC: B01D53/94

CPC classification number: B01D53/9472 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/209 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/902 ,  B01D2255/908 ,  B01J21/04 ,  B01J23/002 ,  B01J23/10 ,  B01J23/20 ,  B01J23/63 ,  B01J23/83 ,  B01J23/8906 ,  B01J23/894 ,  B01J27/232 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J2523/00 ,  Y02A50/2324 ,  Y02T10/22

Abstract: The present disclosure describes zoned three way catalyst (TWC) systems including Rhodium-iron overcoat layers and Nb—Zr—Al Oxide overcoat layers. Disclosed herein are TWC sample systems that are configured to include a substrate and one or more of a washcoat layer, an impregnation layer, and/or an overcoat layer. In catalyst systems disclosed herein, closed-coupled catalysts include a first catalyst zone with an overcoat layer formed using a slurry that includes an oxide mixture and an Oxygen Storage Material (OSM). In catalyst systems disclosed herein, oxide mixtures include niobium oxide (Nb2O5), zirconia, and alumina. Further, catalyst systems disclosed herein include a second catalyst zone with an overcoat layer formed to include a rhodium-iron catalyst. Yet further, catalyst systems disclosed herein include impregnation layers that include one or more of Palladium, Barium, Cerium, Neodymium, and Rhodium.

Abstract translation: 本公开描述了包括铑 - 铁外涂层和Nb-Zr-Al氧化物外涂层的分区三元催化剂（TWC）系统。 本文公开了被配置为包括基底和一个或多个修补基面涂层，浸渍层和/或外涂层的TWC样品系统。 在本文公开的催化剂体系中，封闭偶联催化剂包括具有使用包含氧化物混合物和氧气存储材料（OSM）的浆料形成的外涂层的第一催化剂区域。 在本文公开的催化剂体系中，氧化物混合物包括氧化铌（Nb 2 O 5），氧化锆和氧化铝。 此外，本文公开的催化剂体系包括具有形成为包括铑 - 铁催化剂的外涂层的第二催化剂区域。 此外，本文公开的催化剂体系包括包含钯，钡，铈，钕和铑中的一种或多种的浸渍层。

公开(公告)号：US09604175B2

公开(公告)日：2017-03-28

申请号：US14732499

申请日：2015-06-05

Applicant: Clean Diesel Technologies, Inc.

Inventor： Randal L. Hatfield ,  Zahra Nazarpoor ,  Johnny T. Ngo ,  Edward J. Lee ,  Stephen J. Golden

IPC: B01D50/00 ,  B01D53/94 ,  B01J23/00 ,  B01J23/89 ,  B01J35/04 ,  B01J21/04 ,  B01J23/10 ,  B01J23/20 ,  B01J23/63 ,  B01J27/232 ,  B01J35/00

CPC classification number: B01D53/9472 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/209 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/902 ,  B01D2255/908 ,  B01J21/04 ,  B01J23/002 ,  B01J23/10 ,  B01J23/20 ,  B01J23/63 ,  B01J23/83 ,  B01J23/8906 ,  B01J23/894 ,  B01J27/232 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J2523/00 ,  Y02A50/2324 ,  Y02T10/22

Abstract: The present disclosure describes zoned three way catalyst (TWC) systems including Rhodium-iron overcoat layers and Nb—Zr—Al Oxide overcoat layers. Disclosed herein are TWC sample systems that are configured to include a substrate and one or more of a washcoat layer, an impregnation layer, and/or an overcoat layer. In catalyst systems disclosed herein, closed-coupled catalysts include a first catalyst zone with an overcoat layer formed using a slurry that includes an oxide mixture and an Oxygen Storage Material (OSM). In catalyst systems disclosed herein, oxide mixtures include niobium oxide (Nb2O5), zirconia, and alumina. Further, catalyst systems disclosed herein include a second catalyst zone with an overcoat layer formed to include a rhodium-iron catalyst. Yet further, catalyst systems disclosed herein include impregnation layers that include one or more of Palladium, Barium, Cerium, Neodymium, and Rhodium.

公开(公告)号：US20150352532A1

公开(公告)日：2015-12-10

申请号：US14732473

申请日：2015-06-05

Applicant: Clean Diesel Technologies, Inc.

Inventor： Randal L. Hatfield ,  Edward J. Lee ,  Johnny T. Ngo ,  Stephen J. Golden

IPC: B01J23/89 ,  B01J35/04 ,  B01J23/00 ,  B01J23/63 ,  B01J21/04 ,  B01J27/232 ,  B01J23/20 ,  B01J35/00 ,  B01J23/10

CPC classification number: B01D53/9472 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/209 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/902 ,  B01D2255/908 ,  B01J21/04 ,  B01J23/002 ,  B01J23/10 ,  B01J23/20 ,  B01J23/63 ,  B01J23/83 ,  B01J23/8906 ,  B01J23/894 ,  B01J27/232 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J2523/00 ,  Y02A50/2324 ,  Y02T10/22

Abstract: Three way catalysts (TWCs) for catalyst systems are disclosed. The disclosed TWC systems include Iron (Fe)-activated Rhodium (Rh) and Barium (Ba)-Palladium (Pd) layers capable of interacting with conventional and/or non-conventional catalyst supports and additives. Variations of TWC system samples are produced including Fe-activated Rh layers deposited onto a washcoat (WC) layer having one or more of an oxygen storage material (OSM). Other TWC system samples are produced including an impregnation (IMPG) layer having loading variations of Ba within a Pd, Ce, and Nd applied onto an OSM WC layer, and a further overcoat layer including Fe-activated Rh is applied onto the IMPG layer. The catalytic performance of disclosed TWC catalysts is evaluated by performing a series of light-off tests, wide pulse perturbation tests, and standard isothermal oxygen storage capacity oscillating tests. Disclosed TWC catalysts exhibit high catalytic performance and significant oxygen storage capacity.

Abstract translation: 公开了用于催化剂体系的三元催化剂（TWC）。 所公开的TWC系统包括能够与常规和/或非常规催化剂载体和添加剂相互作用的铁（Fe）活化的铑（Rh）和钡（Ba） - 钯（Pd）层。 产生TWC系统样品的变化，包括沉积在具有一种或多种储氧材料（OSM）的修补基面涂层（WC）层上的Fe活化的Rh层。 生产其他TWC系统样品，其包括在施加到OSM WC层上的Pd，Ce和Nd中具有Ba负载变化的浸渍（IMPG）层，并且将包含Fe活化的Rh的另外的外涂层施加到IMPG层上。 所公开的TWC催化剂的催化性能通过进行一系列的灭灯试验，宽脉冲扰动试验和标准等温储氧容量振荡试验进行评估。 公开的TWC催化剂表现出高催化性能和显着的储氧能力。

公开(公告)号：US09475005B2

公开(公告)日：2016-10-25

申请号：US14732473

申请日：2015-06-05

Applicant: Clean Diesel Technologies, Inc.

Inventor： Randal L. Hatfield ,  Edward J. Lee ,  Johnny T. Ngo ,  Stephen J. Golden

IPC: B01J27/25 ,  B01J23/00 ,  B01J23/02 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/56 ,  B01J23/58 ,  B01J23/70 ,  B01J23/74 ,  B01J21/04 ,  B01D53/94 ,  B01J23/89 ,  B01J35/04 ,  B01J23/20 ,  B01J23/63 ,  B01J27/232 ,  B01J35/00

CPC classification number: B01D53/9472 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/209 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/902 ,  B01D2255/908 ,  B01J21/04 ,  B01J23/002 ,  B01J23/10 ,  B01J23/20 ,  B01J23/63 ,  B01J23/83 ,  B01J23/8906 ,  B01J23/894 ,  B01J27/232 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J2523/00 ,  Y02A50/2324 ,  Y02T10/22

Abstract: Three way catalysts (TWCs) for catalyst systems are disclosed. The disclosed TWC systems include Iron (Fe)-activated Rhodium (Rh) and Barium (Ba)-Palladium (Pd) layers capable of interacting with conventional and/or non-conventional catalyst supports and additives. Variations of TWC system samples are produced including Fe-activated Rh layers deposited onto a washcoat (WC) layer having one or more of an oxygen storage material (OSM). Other TWC system samples are produced including an impregnation (IMPG) layer having loading variations of Ba within a Pd, Ce, and Nd applied onto an OSM WC layer, and a further overcoat layer including Fe-activated Rh is applied onto the IMPG layer. The catalytic performance of disclosed TWC catalysts is evaluated by performing a series of light-off tests, wide pulse perturbation tests, and standard isothermal oxygen storage capacity oscillating tests. Disclosed TWC catalysts exhibit high catalytic performance and significant oxygen storage capacity.

Abstract translation: 公开了用于催化剂体系的三元催化剂（TWC）。 所公开的TWC系统包括能够与常规和/或非常规催化剂载体和添加剂相互作用的铁（Fe）活化的铑（Rh）和钡（Ba） - 钯（Pd）层。 产生TWC系统样品的变化，包括沉积在具有一种或多种储氧材料（OSM）的修补基面涂层（WC）层上的Fe活化的Rh层。 生产其他TWC系统样品，其包括在施加到OSM WC层上的Pd，Ce和Nd中具有Ba负载变化的浸渍（IMPG）层，并且将包含Fe活化的Rh的另外的外涂层施加到IMPG层上。 所公开的TWC催化剂的催化性能通过进行一系列的灭灯试验，宽脉冲扰动试验和标准等温储氧容量振荡试验进行评估。 公开的TWC催化剂表现出高催化性能和显着的储氧能力。