公开(公告)号：US20150148216A1

公开(公告)日：2015-05-28

申请号：US14503003

申请日：2014-09-30

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J29/068 ,  B01J23/63 ,  B01J23/62 ,  B01J23/56

CPC classification number: B01J29/068 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/405 ,  B01J23/005 ,  B01J23/34 ,  B01J23/56 ,  B01J23/626 ,  B01J23/63 ,  B01J23/72 ,  B01J23/8933 ,  B01J23/8986 ,  B01J37/0244 ,  C01B3/40 ,  C01B13/0281 ,  C01B2203/0233 ,  C01B2203/1041 ,  C01B2203/1094 ,  C08K3/00 ,  C08K3/22 ,  H01M4/00 ,  Y02P20/52 ,  Y02T10/22 ,  C08L23/02

Abstract: Spinels having a general formula of AB2O4, where A and B are a transition metal but not the same transition metal are disclosed. Spinel and spinel compositions of the application are useful in various applications and methods as further described.

Abstract translation: 公开了具有通式AB 2 O 4的尖晶石，其中A和B是过渡金属，但不是相同的过渡金属。 应用的尖晶石和尖晶石组合物可用于进一步描述的各种应用和方法中。

公开(公告)号：US10253669B2

公开(公告)日：2019-04-09

申请号：US15586823

申请日：2017-05-04

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden ,  Maxime Launois

IPC: F01N3/00 ,  F01N3/10 ,  B01J23/00 ,  B01D53/94 ,  F01N13/00 ,  B01J37/02 ,  B01J23/889 ,  B01J23/89 ,  B01J35/00

Abstract: Synergized platinum group metals (SPGM) with ultra-low PGM loadings employed as underfloor (UF) three-way catalyst (TWC) systems with varied material compositions and configurations are disclosed. SPGM UF catalysts in which ZPGM compositions of binary and ternary spinel structures supported onto support oxides are coupled with commercialized PGM close-coupled (CC) catalysts and tested under Federal Test Procedure FTP-75 within TGDI and PI engines. The performance of the TWC systems including commercialized PGM CC and SPGM UF (with ultra-low PGM loadings) catalysts is compared to the performance of commercialized PGM CC and PGM UF catalysts. The disclosed TWC systems indicate that SPGM UF TWC catalytic performance is comparable or even exceeds high PGM-based conventional TWC catalysts, with reduced tailpipe emissions.

公开(公告)号：US20160361711A1

公开(公告)日：2016-12-15

申请号：US15182330

申请日：2016-06-14

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J23/889 ,  B01D53/94 ,  B01J35/02 ,  C01G45/12 ,  B01J23/00

CPC classification number: B01J23/8892 ,  B01D53/945 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/65 ,  B01D2255/908 ,  B01J23/005 ,  C01G3/02 ,  C01G45/02 ,  C01G45/1221 ,  C01G45/1235 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/04 ,  Y02C20/10 ,  Y02T10/22

Abstract: The present disclosure describes zero-platinum group metals (ZPGM) material compositions including binary Cu—Mn spinel oxide powders having stable reduction/oxidation (redox) reversibility useful for TWC and oxygen storage material applications. The behavior of Cu—Mn spinel oxide powder is analyzed under oxidation-reduction environments to determine redox reversibility, catalytic activity, and spinel structure stability. Characterization of spinel powder is performed employing X-ray diffraction analysis, hydrogen temperature-programmed reduction technique, transmission electron microscopy analysis, and X-ray photoelectron spectroscopy analysis. Test results confirm the phase and structural stability of the Cu—Mn spinel oxide during redox reaction, thereby indicating that the Cu—Mn spinel oxide can be employed in a plurality of TWC applications.

Abstract translation: 本公开描述了包含用于TWC和储氧材料应用的具有稳定的还原/氧化（氧化还原）可逆性的二元Cu-Mn尖晶石氧化物粉末的零铂族金属（ZPGM）材料组合物。 在氧化还原环境下分析Cu-Mn尖晶石氧化物粉末的行为，以确定氧化还原可逆性，催化活性和尖晶石结构稳定性。 使用X射线衍射分析，氢气温度程序化还原技术，透射电子显微镜分析和X射线光电子能谱分析进行尖晶石粉末的表征。 测试结果证实氧化还原反应期间Cu-Mn尖晶石氧化物的相和结构稳定性，从而表明Cu-Mn尖晶石氧化物可用于多个TWC应用中。

公开(公告)号：US09511353B2

公开(公告)日：2016-12-06

申请号：US13912011

申请日：2013-06-06

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor

IPC: B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/20 ,  B01J23/72 ,  B01J37/08 ,  B01J37/14 ,  B01J23/83 ,  B01J37/02 ,  B01J23/00 ,  B01J23/68 ,  B01D53/94 ,  B01J37/03 ,  B01J29/06

CPC classification number: B01J23/83 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/104 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/65 ,  B01D2255/9022 ,  B01D2255/908 ,  B01J23/002 ,  B01J23/688 ,  B01J29/06 ,  B01J37/0244 ,  B01J37/03 ,  B01J2523/00 ,  Y02A50/2341 ,  Y02T10/22 ,  B01J2523/18 ,  B01J2523/36 ,  B01J2523/48 ,  B01J2523/72 ,  B01J2523/31 ,  B01J2523/3706

Abstract: The effect of firing (calcination) cycle on metallic substrates in ZPGM catalyst systems is disclosed. ZPGM catalyst samples with washcoat and overcoat are separately fired in a normal, slow and fast firing cycles to determine the optimal firing cycling that may provide an enhanced catalyst performance, as well as the minimal loss of washcoat adhesion from the samples.

Abstract translation: 公开了在ZPGM催化剂体系中烧成（煅烧）循环对金属基材的影响。 具有修补基面涂层和外涂层的ZPGM催化剂样品在正常，缓慢和快速的烧制循环中分别焙烧以确定可以提供增强的催化剂性能的最佳烧制循环，以及来自样品的修补基面涂层粘附的最小损失。

公开(公告)号：US20160263561A1

公开(公告)日：2016-09-15

申请号：US14657833

申请日：2015-03-13

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J23/83 ,  B01J35/02 ,  B01J23/00

CPC classification number: B01J23/83 ,  B01D53/945 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/9207 ,  B01J23/005 ,  B01J23/894 ,  B01J35/02 ,  Y02T10/22

Abstract: Variations of ZPGM catalyst material compositions including cerium-cobalt spinel oxide systems for ZPGM DOC applications are disclosed. The disclosed ZPGM catalyst compositions include CexCo3−xO4 spinel and effect of adding copper to Ce-Co as CuxCe1−xCo2O4 spinel systems supported on doped zirconia support oxide, which are produced by the incipient wetness (IW) methodology. ZPGM catalyst compositions are subjected to BET-surface area and XRD analyses to determine the thermal stability and spinel phase formation of supported spinal systems, respectively. DOC performance of ZPGM catalyst compositions is determined under steady state DOC light off test condition to verify/compare oxidation activity of disclosed spinel compositions, desirable and suitable for ZPGM catalyst materials in DOC applications.

Abstract translation: 公开了ZPGM催化剂材料组合物的变化，包括用于ZPGM DOC应用的铈 - 钴尖晶石氧化物体系。 所公开的ZPGM催化剂组合物包括CexCo3-xO4尖晶石以及以Ce-Co作为CuxCe1-xCo2O4尖晶石系统添加铜的作用，其由掺杂的氧化锆载体氧化物负载，其由初始湿度（IW）方法制备。 对ZPGM催化剂组合物进行BET表面积和XRD分析，分别确定支撑脊柱系统的热稳定性和尖晶石相形成。 在稳态DOC光离去试验条件下测定ZPGM催化剂组合物的DOC性能，以验证/比较所公开的尖晶石组合物的氧化活性，在DOC应用中是合适的并适用于ZPGM催化剂材料。

公开(公告)号：US09433930B2

公开(公告)日：2016-09-06

申请号：US14090809

申请日：2013-11-26

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor

IPC: B01J21/04 ,  B01J23/24 ,  B01J23/72 ,  B01J23/889 ,  B01J37/02 ,  B01J23/00 ,  B01D53/94 ,  B01J37/03

CPC classification number: B01J23/8892 ,  B01D53/945 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/209 ,  B01D2255/40 ,  B01D2255/65 ,  B01J23/005 ,  B01J37/0244 ,  B01J37/035 ,  B01J37/038 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/48 ,  B01J2523/56 ,  B01J2523/72 ,  B01J2523/31

Abstract: The present disclosure relates to selecting the layer of applying ZPGM active phase in washcoat, or applying ZPGM active phase in overcoat, for achieving optimized performance and enhanced thermal stability. Applying ZPGM active phase catalyst in overcoat shows improvements compare to applying ZPGM active phase in washcoat. The selected active phase material may include a chemical composition that is substantially free from PGM, including a formulation of stoichiometric Cu—Mn spinel structure active phase deposited on Niobium-Zirconium support oxide. The selected active phase layer applied in overcoat may include a washcoat of alumina coated on a suitable ceramic substrate. The disclosed active phase may be applied in overcoat to maximize efficiency of catalyst systems, which may exhibit enhanced catalytic activity properties, which may stable after aging and under steady state and oscillating condition, showing optimized performance purifying gases in TWC condition.

Abstract translation: 本公开涉及选择在修补基面涂层中施加ZPGM活性相的层，或在外涂层中施加ZPGM活性相，以实现优化的性能和增强的热稳定性。 与在涂层中应用ZPGM活性相相比，在外涂层中使用ZPGM活性相催化剂显示出改进。 选择的活性相材料可以包括基本上不含PGM的化学组合物，包括沉积在铌 - 锆担载氧化物上的化学计量的Cu-Mn尖晶石结构活性相的配方。 施加在外涂层中的所选活性相层可以包括涂覆在合适的陶瓷基底上的氧化铝的修补基面涂层。 所公开的活性相可以施加在外涂层中以使催化剂体系的效率最大化，其可以表现出增强的催化活性性质，其在老化和稳定状态和振荡条件之后可以稳定，在TWC条件下显示优化的性能净化气体。

公开(公告)号：US09216384B2

公开(公告)日：2015-12-22

申请号：US14500387

申请日：2014-09-29

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01D53/86 ,  B01D53/94 ,  B01D53/56 ,  B01D53/62 ,  B01D53/72 ,  B01J23/00 ,  B01J23/34 ,  B01J23/72 ,  B01J37/02 ,  B01J23/89

CPC classification number: B01D53/9463 ,  B01D53/565 ,  B01D53/62 ,  B01D53/72 ,  B01D53/865 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/908 ,  B01J23/005 ,  B01J23/34 ,  B01J23/72 ,  B01J23/898 ,  B01J37/0244 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/48 ,  B01J2523/56 ,  B01J2523/72

Abstract: Synergized Platinum Group Metals (SPGM) catalyst system for TWC application is disclosed. Disclosed SPGM catalyst system may include a washcoat with a Cu—Mn spinel structure and an overcoat that includes PGM supported on carrier material oxides, such as alumina. SPGM catalyst system shows significant improvement in nitrogen oxide reduction performance under stoichiometric operating conditions and especially under lean operating conditions, which allows a reduced consumption of fuel. Additionally, disclosed SPGM catalyst system also enhances the reduction of carbon monoxide and hydrocarbon within catalytic converters. Furthermore, disclosed SPGM catalyst systems are found to have enhanced catalyst activity compared to commercial PGM catalyst system, showing that there is a synergistic effect among PGM catalyst and Cu—Mn spinel within the disclosed SPGM catalyst system.

Abstract translation: 公开了用于TWC应用的协同铂族金属（SPGM）催化剂体系。 公开的SPGM催化剂体系可以包括具有Cu-Mn尖晶石结构的修补基面涂层和包含负载在载体材料氧化物如氧化铝上的PGM的外涂层。 SPGM催化剂体系在化学计量操作条件下，特别是在稀薄的操作条件下显示出氮氧化物还原性能的显着改善，这允许减少燃料消耗。 另外，所公开的SPGM催化剂体系还增强了催化转化器中一氧化碳和碳氢化合物的还原。 此外，发现所公开的SPGM催化剂体系与商业PGM催化剂体系相比具有增强的催化剂活性，表明在所公开的SPGM催化剂体系内PGM催化剂和Cu-Mn尖晶石之间具有协同效应。

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：US20170328250A1

公开(公告)日：2017-11-16

申请号：US15586847

申请日：2017-05-04

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden ,  Maxime Launois

IPC: F01N3/10 ,  B01D53/94 ,  F01N13/00 ,  B01J23/42 ,  B01J23/46 ,  B01J23/755 ,  F01N3/08 ,  B01J23/00

CPC classification number: F01N3/101 ,  B01D53/945 ,  B01D53/9468 ,  B01D53/9477 ,  B01D2255/102 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1026 ,  B01D2255/1028 ,  B01D2255/2022 ,  B01D2255/2027 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/2047 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/20707 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/20784 ,  B01D2255/20792 ,  B01D2255/2092 ,  B01D2255/405 ,  B01D2255/65 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/904 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/01 ,  B01J23/005 ,  B01J23/42 ,  B01J23/464 ,  B01J23/755 ,  F01N3/0864 ,  F01N13/0093 ,  F01N2370/02 ,  F01N2510/06 ,  Y02T10/22

Abstract: Synergized platinum group metals (SPGM) with ultra-low PGM loadings employed as close-coupled (CC) three-way catalysts (TWC) systems with varied material compositions and configurations are disclosed. SPGM CC catalysts in which ZPGM compositions of binary or ternary spinel structures supported onto support oxides are coupled with commercialized PGM UF catalysts and tested under Federal Test Procedure FTP-75 within TGDI and PI engines. The performance of the TWC systems including SPGM CC (with ultra-low PGM loadings) catalyst and commercialized PGM UF catalyst is compared to the performance of commercialized PGM CC and PGM UF catalysts. The disclosed TWC systems indicate that SPGM CC TWC catalytic performance is comparable or even exceeds high PGM-based conventional TWC catalysts, with reduced tailpipe emissions.

公开(公告)号：US09731279B2

公开(公告)日：2017-08-15

申请号：US14528746

申请日：2014-10-30

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Anke Elizabeth Abken ,  Stephen J. Golden

IPC: B01J23/889 ,  B01J37/02 ,  B01J23/00 ,  B01D53/94

CPC classification number: B01J23/8892 ,  B01D53/945 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/405 ,  B01D2255/65 ,  B01J23/005 ,  B01J37/0242 ,  B01J37/0244 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/72 ,  B01J2523/845 ,  B01J2523/31 ,  B01J2523/3718 ,  B01J2523/48

Abstract: Effect of the type of ZPGM material composition to improve thermal stability of ZPGM catalyst systems for TWC application is disclosed. ZPGM catalyst system samples are prepared and configured with washcoat on ceramic substrate, overcoat including doped Zirconia support oxide, and impregnation layer including either Cu1Mn2O4 spinel or Cu1Co1Mn1O4 spinel. Testing of ZPGM catalyst samples including variations of aging temperatures and different impregnation layer materials are developed under isothermal steady state sweep test condition for ZPGM catalyst systems to evaluate performance especially NOx conversions and level of thermal stability. As a result disclosed ZPGM catalyst systems with most suitable spinel that includes Cu1Co1Mn1O4 in impregnation layer exhibit high NOx conversion and significant improved thermal stability compare to Cu1Mn2O4 spinel, which is suitable for under floor and close coupled TWC application. The effect of adding Co to Cu—Mn spinel composition to improve thermal stability confirmed by TPR measurement.