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公开(公告)号：US09486784B2
公开(公告)日：2016-11-08
申请号：US14333846
申请日：2014-07-17
Applicant: Clean Diesel Technologies, Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden
IPC: B01J23/00 , B01J23/32 , B01J23/70 , B01J23/72 , B01J23/889 , B01J23/20 , C01G45/12 , B01J37/03 , B01J35/00 , B01D53/94
CPC classification number: B01J23/8892 , B01D53/945 , B01D2255/20715 , B01D2255/2073 , B01D2255/20761 , B01D2255/40 , B01D2255/405 , B01D2255/908 , B01J23/005 , B01J23/20 , B01J35/002 , B01J37/035 , C01G45/1242 , C01P2006/90 , Y02T10/22
Abstract: The effect of aging temperature on oxygen storage materials (OSM) substantially free from platinum group (PGM) and rare earth (RE) metals is disclosed. Samples of ZPGM-ZRE metals OSM, hydrothermally aged at a plurality of high temperatures are found to have significantly high oxygen storage capacity (OSC) and phase stability than conventional PGM catalysts with Ce-based OSM. ZPGM-ZRE metals OSM includes a formulation of Cu—Mn stoichiometric spinel structure deposited on Nb—Zr oxide support and may be converted into powder to be used as OSM application or coated onto catalyst substrate. ZPGM-ZRE metals OSM, after aging condition, presents enhanced level of thermal stability and OSC property which shows improved catalytic activity than conventional PGM catalysts including Ce-based OSM. ZPGM-ZRE metals OSM may be suitable for a vast number of applications, and more particularly in underfloor catalyst systems.
Abstract translation: 公开了老化温度对基本上不含铂族（PGM）和稀土（RE）金属的储氧材料（OSM）的影响。 发现在多个高温下水热老化的ZPGM-ZRE金属OSM样品具有比具有Ce基OSM的常规PGM催化剂显着高的储氧能力（OSC）和相稳定性。 ZPGM-ZRE金属OSM包括沉积在Nb-Zr氧化物载体上的Cu-Mn化学计量的尖晶石结构的配方，并且可以转化为粉末以用作OSM应用或涂覆到催化剂衬底上。 ZPGM-ZRE金属OSM在老化条件下表现出比常规PGM催化剂（包括Ce基OSM）更高的热稳定性和OSC性能，其显示出更好的催化活性。 ZPGM-ZRE金属OSM可能适用于广泛的应用，尤其适用于地板下的催化剂体系。
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32.发明授权Systems and methods for using copper-manganese spinel as active phase for diesel oxidation applications 有权使用铜锰尖晶石作为柴油氧化应用的活性相的系统和方法公开(公告)号：US09486783B2
公开(公告)日：2016-11-08
申请号：US14251186
申请日：2014-04-11
Applicant: Clean Diesel Technologies Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden
CPC classification number: B01J23/8892 , B01D53/944 , B01D53/945 , B01D2255/104 , B01D2255/206 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/20761 , B01D2255/65 , B01D2255/9022 , B01D2255/908 , B01J23/002 , B01J23/005 , B01J23/66 , B01J23/688 , B01J23/83 , B01J37/0244 , B01J37/0246 , Y02A50/2341 , Y02T10/22 , Y10S502/52712
Abstract: A diesel oxidation catalyst (DOC) system for the treatment of exhaust gas emissions, including oxidation of nitrogen oxides (NO), unburned hydrocarbons (HC), and carbon monoxide (CO) is disclosed. Fresh and hydrothermally aged Zero-PGM (ZPGM) DOC samples are prepared and configured with an alumina-based washcoat on ceramic substrate, overcoat including doped Zirconia support oxide, and impregnation layer of Cu—Mn spinel of selected base metal loadings. Testing of fresh and hydrothermally aged ZPGM DOC system samples including Cu—Mn spinel is developed to evaluate the performance of Cu—Mn spinel active phase in oxidation CO, HC, and NO, as well as production of NO2. Key to improvement in light-off performance and NO oxidation is to have a diesel oxidation catalyst that is substantially PGM-free and available for a plurality of applications in lean burn engine operations.
Abstract translation: 公开了一种用于处理废气排放的柴油氧化催化剂（DOC）系统，包括氮氧化物（NO），未燃碳氢化合物（HC）和一氧化碳（CO）的氧化。 新鲜和水热老化的零PGM（ZPGM）DOC样品在陶瓷衬底上的氧化铝基洗涂层，包括掺杂的氧化锆载体氧化物的外涂层和选定的贱金属负载的Cu-Mn尖晶石的浸渍层制备并配置。 开发了新鲜和水热老化的ZPGM DOC系统样品（包括Cu-Mn尖晶石）的测试，以评估Cu-Mn尖晶石活性相在氧化CO，HC和NO中的性能以及NO2的产生。 提高熄火性能和NO氧化的关键是具有基本上无PGM的柴油氧化催化剂，并且可用于稀燃燃烧发动机操作中的多种应用。
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公开(公告)号：US09475004B2
公开(公告)日：2016-10-25
申请号：US14732307
申请日：2015-06-05
Applicant: Clean Diesel Technologies, Inc.
Inventor： Randal L. Hatfield , Stephen J. Golden , Johnny T. Ngo
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: The present disclosure describes rhodium iron catalysts of use in catalyst systems. Disclosed here are TWCs configured to include a substrate and one or more of a washcoat layer, an impregnation layer, and/or an overcoat layer. Disclosed herein are one or more of a washcoat layer and/or an overcoat layer formed using a slurry that includes one or more of an oxygen storage material, a refractory support oxide, iron, and rhodium. Disclosed herein are methods of preparing catalysts wherein a washcoat layer is deposited onto the substrate, one or more impregnation layers may be deposited onto the washcoat layer, one or more overcoat layers may be deposited onto the impregnation washcoat layer, and one or more additional impregnation layers may be deposited onto the one or more washcoat layers.
Abstract translation: 本公开描述了用于催化剂体系的铑铁催化剂。 这里公开的是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。 本文公开了使用包含储氧材料，耐火载体氧化物，铁和铑中的一种或多种的浆料形成的修补基面涂层和/或外涂层中的一种或多种。 本文公开了制备催化剂的方法，其中将修补基面涂层沉积在基材上，一个或多个浸渍层可以沉积在修补基面涂层上，一个或多个外涂层可以沉积在浸渍涂层上，并且一个或多个另外的浸渍 层可以沉积在一个或多个修补基面涂层上。
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34.发明申请Method for Improving Lean Performance of PGM Catalyst Systems: Synergized PGM 有权提高PGM催化剂体系精益性能的方法：协同PGM公开(公告)号：US20150147251A1
公开(公告)日：2015-05-28
申请号：US14500387
申请日：2014-09-29
Applicant: Clean Diesel Technologies, Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden
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。
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公开(公告)号：US20150105246A1
公开(公告)日：2015-04-16
申请号：US14333846
申请日：2014-07-17
Applicant: Clean Diesel Technologies, Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden
IPC: B01J23/889 , B01J23/20 , C01G45/12
CPC classification number: B01J23/8892 , B01D53/945 , B01D2255/20715 , B01D2255/2073 , B01D2255/20761 , B01D2255/40 , B01D2255/405 , B01D2255/908 , B01J23/005 , B01J23/20 , B01J35/002 , B01J37/035 , C01G45/1242 , C01P2006/90 , Y02T10/22
Abstract: The effect of aging temperature on oxygen storage materials (OSM) substantially free from platinum group (PGM) and rare earth (RE) metals is disclosed. Samples of ZPGM-ZRE metals OSM, hydrothermally aged at a plurality of high temperatures are found to have significantly high oxygen storage capacity (OSC) and phase stability than conventional PGM catalysts with Ce-based OSM. ZPGM-ZRE metals OSM includes a formulation of Cu—Mn stoichiometric spinel structure deposited on Nb—Zr oxide support and may be converted into powder to be used as OSM application or coated onto catalyst substrate. ZPGM-ZRE metals OSM, after aging condition, presents enhanced level of thermal stability and OSC property which shows improved catalytic activity than conventional PGM catalysts including Ce-based OSM. ZPGM-ZRE metals OSM may be suitable for a vast number of applications, and more particularly in underfloor catalyst systems.
Abstract translation: 公开了老化温度对基本上不含铂族（PGM）和稀土（RE）金属的储氧材料（OSM）的影响。 发现在多个高温下水热老化的ZPGM-ZRE金属OSM样品具有比具有Ce基OSM的常规PGM催化剂显着高的储氧能力（OSC）和相稳定性。 ZPGM-ZRE金属OSM包括沉积在Nb-Zr氧化物载体上的Cu-Mn化学计量的尖晶石结构的配方，并且可以转化为粉末以用作OSM应用或涂覆到催化剂衬底上。 ZPGM-ZRE金属OSM在老化条件下表现出比常规PGM催化剂（包括Ce基OSM）更高的热稳定性和OSC性能，其显示出更好的催化活性。 ZPGM-ZRE金属OSM可能适用于广泛的应用，尤其适用于地板下的催化剂体系。
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Patent Agency Ranking
公开(公告)号：US10533472B2
公开(公告)日：2020-01-14
申请号：US15586847
申请日：2017-05-04
Applicant: Clean Diesel Technologies, Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden , Maxime Launois
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.
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公开(公告)号：US09951706B2
公开(公告)日：2018-04-24
申请号：US14692577
申请日：2015-04-21
Applicant: Clean Diesel Technologies, Inc.
Inventor： Maxime Launois , Zahra Nazarpoor , Stephen J. Golden
CPC classification number: F02D41/2432 , F01N3/28 , F01N2510/0684 , F02D41/08 , F02D41/1441 , F02D41/1446 , F02D41/1456 , F02D41/1475 , F02D41/2461 , F02D2250/36 , G01M15/104
Abstract: Modified calibration strategies for controlling an internal combustion engine and monitoring catalyst performance are disclosed. The modified calibration strategies are implemented using an engine and test cell/catalyst chamber setup wherein the engine is a Euro V 1.2 L turbo gasoline direct injection engine and test cells/catalyst chamber are implemented as substantially free of platinum group metals (PGM) catalysts, herein referred as ZPGM catalysts, and synergized PGM (SPGM) catalysts including a stoichiometric spinel structure within the catalyst configuration. The utilization of an open ECU enables the modified calibration of the engine out targeted AFR. The conventional ECU AFR control strategies are not modified to have the ECU AFR control strategies to continue running normally and only the final engine out targeted AFR values are modified by applying offset AFR values. The modified calibration strategies improve engine operation and catalyst conversion efficiency of the ZPGM and SPGM catalysts including the spinel structures.
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38.发明授权公开(公告)号：US09861964B1
公开(公告)日：2018-01-09
申请号：US15377368
申请日：2016-12-13
Applicant: Clean Diesel Technologies, Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden
IPC: B01J21/00 , B01J21/04 , B01J21/06 , B01J21/08 , B01J23/00 , B01J23/72 , B01J23/755 , B01J23/889 , B01J35/00 , B01J35/02 , B01J35/04 , B01J23/20 , B01J37/02 , B01J37/08 , B01D53/94
CPC classification number: B01J23/8892 , B01D53/945 , B01D2255/20715 , B01D2255/2073 , B01D2255/20753 , B01D2255/20761 , B01D2255/2092 , B01D2255/9022 , B01J23/005 , B01J23/20 , B01J35/0006 , B01J35/02 , B01J37/0213 , B01J37/0242 , B01J37/08
Abstract: The present disclosure relates to zero-PGM (ZPGM) catalysts including variations of Nickel-doped Copper-Manganese spinel for improved catalyst performance at the stoichiometric condition for use within three-way catalyst (TWC) applications. The ZPGM catalyst material compositions within the aforementioned ZPGM catalysts are expressed with general formulas of Cu1-XNiXMn2O4 (A-site substitution) and Cu1Mn2-XNiXO4 (B-site substitution). The ZPGM catalysts are subjected to a TWC isothermal steady-state sweep test to assess the catalytic performance (e.g., NO conversion). Test results indicate the ZPGM catalysts exhibit higher NO conversions, at stoichiometric condition and lean conditions, when Ni substituted the B-site cation of the Cu—Mn spinel as compared to Ni substituted the A-site cation of the Cu—Mn spinel. Additionally, NO conversions of the ZPGM catalysts are significantly affected, at the stoichiometric condition, by the molar ratio of the Ni dopant within the A or B-site cation of the Cu—Mn spinel.
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39.发明申请公开(公告)号：US20170328249A1
公开(公告)日：2017-11-16
申请号：US15586823
申请日：2017-05-04
Applicant: Clean Diesel Technologies, Inc.
Inventor： Zahra Nazarpoor , Stephen J. Golden , Maxime Launois
CPC classification number: F01N3/101 , B01D53/9445 , B01D53/9468 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/1026 , B01D2255/1028 , B01D2255/2073 , B01D2255/20761 , B01D2255/405 , B01D2255/9022 , B01D2255/904 , B01D2258/01 , B01J23/005 , B01J23/8892 , B01J23/8986 , B01J35/0006 , B01J37/0244 , B01J2523/00 , F01N13/009 , F01N2370/02 , F01N2510/068 , Y02T10/22 , B01J2523/17 , B01J2523/31 , B01J2523/48 , B01J2523/72 , B01J2523/822 , B01J2523/828 , B01J2523/845
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.
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公开(公告)号：US09700841B2
公开(公告)日：2017-07-11
申请号：US14657842
申请日：2015-03-13
Applicant: Clean Diesel Technologies, Inc.
Inventor： Stephen J. Golden
IPC: B01D50/00 , B01D53/94 , B01J23/89 , B01J23/00 , B01J23/34 , B01J23/46 , B01J23/72 , F01N3/10 , F01N13/00
CPC classification number: B01D53/945 , B01D53/9477 , B01D2255/1023 , B01D2255/1025 , B01D2255/2073 , B01D2255/20761 , B01D2255/405 , B01D2258/014 , B01J23/005 , B01J23/34 , B01J23/464 , B01J23/72 , B01J23/8892 , B01J23/8986 , B01J35/0006 , F01N3/101 , F01N13/009 , F01N13/0097 , Y02T10/22
Abstract: Synergized PGM catalyst converters configured as three-way catalyst (TWC) systems are disclosed. The disclosed SPGM system configurations exhibit high thermal stability, attenuated air to fuel (A/F) perturbations, enhanced TWC activity, and high catalytic conversion efficiency as a result of synergizing a low PGM loading close-coupled catalyst (CCC), with Ce-based oxygen storage, with a front spinel zone of suitable mixed metal oxide compositions acting as pre-catalyst for oxygen storage. The attenuation of A/F perturbations to lower amplitude, before exhaust gas emissions go into the standard PGM CCC, allows the system to work within a range of R values very close to the stoichiometric point for both lean and rich conditions, and high catalytic conversion efficiency in NOX, CO, and HC conversions. The disclosed SPGM system configurations can be utilized in a plurality of TWC applications, such as conventional TWC systems including an optional underfloor catalyst.
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