公开(公告)号：US20160312730A1

公开(公告)日：2016-10-27

申请号：US14692577

申请日：2015-04-21

Applicant: Clean Diesel Technologies, Inc.

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

IPC: F02D41/24 ,  F01N3/28

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.

Abstract translation: 公开了用于控制内燃机和监测催化剂性能的改进的校准策略。 改进的校准策略使用发动机和测试电池/催化剂室设置来实现，其中发动机是Euro V 1.2L涡轮汽油直接喷射发动机，并且测试电池/催化剂室基本上不含铂族金属（PGM）催化剂， 在本文中称为ZPGM催化剂，以及在催化剂构型中包括化学计量的尖晶石结构的协同PGM（SPGM）催化剂。 使用开放式ECU可以对发动机进行修改后的校准，以实现目标AFR。 传统的ECU AFR控制策略不会被修改为使ECU AFR控制策略能够正常运行，只有通过应用偏移AFR值才能修改目标AFR值。 改进的校准策略提高了包括尖晶石结构在内的ZPGM和SPGM催化剂的发动机运行和催化剂转化效率。

公开(公告)号：US09427730B2

公开(公告)日：2016-08-30

申请号：US14543536

申请日：2014-11-17

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01D53/56 ,  B01D53/94 ,  B01J8/02 ,  B01J21/00 ,  B01J21/04 ,  B01J23/00 ,  B01J23/02 ,  B01J23/32 ,  B01J23/42 ,  B01J23/44 ,  B01J23/70 ,  B01J23/72 ,  B01J23/889 ,  B01J23/46 ,  B01J23/20 ,  B01J35/00

CPC classification number: B01J23/8892 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/207 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/2094 ,  B01D2255/40 ,  B01D2255/405 ,  B01J21/04 ,  B01J23/002 ,  B01J23/005 ,  B01J23/20 ,  B01J23/464 ,  B01J23/8986 ,  B01J35/0006 ,  B01J37/0036 ,  B01J37/0244 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/31 ,  B01J2523/48 ,  B01J2523/56 ,  B01J2523/72 ,  B01J2523/822 ,  B01J2523/824 ,  B01J2523/828

Abstract: Bimetallic Synergized Platinum Group Metals (SPGM) catalyst systems for TWC application are disclosed. Disclosed bimetallic SPGM catalyst systems may include a washcoat with a Cu—Mn spinel structure and an overcoat that includes PGMs, such as Pd/Rh or Pt/Rh supported on carrier material oxides, such as alumina. Bimetallic SPGM catalyst systems show significant improvement in nitrogen oxide reduction performance under lean operating conditions, which allows a reduced consumption of fuel. Additionally, disclosed bimetallic SPGM catalyst systems exhibit enhanced catalytic activity for carbon monoxide conversion. Furthermore, bimetallic SPGM catalyst systems are found to have enhanced catalytic activity for fresh, hydrothermally aged and fuel cut aged conditions compared to PGM catalyst system, showing that there is a synergistic effect between PGM catalyst and Cu—Mn spinel within the disclosed SPGM catalyst system which help in performance and thermal stability of disclosed SPGM catalyst systems.

Abstract translation: 公开了用于TWC应用的双金属协同铂族金属（SPGM）催化剂体系。 公开的双金属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括载体材料氧化物如氧化铝上的PGM，例如Pd / Rh或Pt / Rh的外涂层。 双金属SPGM催化剂体系在稀薄运行条件下显示氮氧化物还原性能的显着改善，这允许减少燃料消耗。 另外，公开的双金属SPGM催化剂体系表现出对一氧化碳转化的增强的催化活性。 此外，与PGM催化剂体系相比，发现双金属SPGM催化剂体系具有增强的新鲜水热老化和燃料切割老化条件的催化活性，表明在所公开的SPGM催化剂体系内PGM催化剂与Cu-Mn尖晶石之间具有协同作用 这有助于所公开的SPGM催化剂体系的性能和热稳定性。

公开(公告)号：US20150352533A1

公开(公告)日：2015-12-10

申请号：US14732523

申请日：2015-06-05

Applicant: Clean Diesel Technologies, Inc.

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

IPC: B01J23/89

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: Close-coupled catalysts (CCC) for TWC applications are disclosed. The novel CCCs are implemented using light-weighted ceramic substrates in which a thin coating employing a low loading of Iron (Fe)-activated Rhodium (Rh) material composition, with Iron loadings and an OSM of Ceria-Zirconia, are deposited onto the substrates. Different CCC samples are produced to determine and/or verify improved light-off (LO) and NOX conversion of the CCCs. Other CCC samples produced are a CCC including a standard (non-activated) Rh thin coating and a heavily loaded CCC with a single coating of Pd/Rh material composition. The CCC samples are aged under dyno-aging using the multi-mode aging cycle and their performance tested using a car engine with ports on the exhaust to measure the emissions, according to the testing protocol in the Environmental Protection Agency Federal Test Procedure 75. During testing, the thin coatings of Fe-activated Rh exhibit improved light-off and NOx conversion efficiency.

Abstract translation: 公开了用于TWC应用的紧密耦合催化剂（CCC）。 新型CCC使用轻质陶瓷衬底实现，其中使用低负载的铁（Fe）活化的铑（Rh）材料组合物的铁载体和氧化铈 - 氧化锆的OSM沉积到衬底上 。 产生不同的CCC样品以确定和/或验证CCC的改进的熄灭（LO）和NOX转化。 生产的其他CCC样品是CCC，包括标准（非活化）Rh薄涂层和具有单层Pd / Rh材料组成的重负载CCC。 根据环境保护局联邦测试程序75中的测试方案，CCC样品使用多模式老化循环进行老化，其性能使用具有排气端口的汽车发动机进行测试，以测量排放。 Fe-活化的Rh的薄涂层具有改善的关闭和NOx转化效率。

公开(公告)号：US20180141031A1

公开(公告)日：2018-05-24

申请号：US15358827

申请日：2016-11-22

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J35/04 ,  B01J23/00 ,  B01J23/40 ,  B01J23/889 ,  B01J23/89 ,  B01J23/58 ,  B01J23/44 ,  B01J23/46 ,  B01J35/00 ,  B01D53/94 ,  F01N3/28

CPC classification number: B01J35/04 ,  B01D53/945 ,  B01D53/9468 ,  B01D53/9472 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/405 ,  B01D2255/9025 ,  B01D2255/9027 ,  B01D2255/9032 ,  B01D2255/908 ,  B01J23/005 ,  B01J23/40 ,  B01J23/44 ,  B01J23/464 ,  B01J23/58 ,  B01J23/8892 ,  B01J23/8986 ,  B01J35/0006 ,  B01J2523/00 ,  F01N3/101 ,  F01N2510/068 ,  F01N2510/0682 ,  F01N2510/0684 ,  Y02T10/22 ,  B01J2523/3712 ,  B01J2523/822 ,  B01J2523/842

Abstract: Multi-zoned synergized-platinum group metals (SPGM) catalysts with significant catalytic capabilities are disclosed. The multi-zoned SPGM catalysts are produced according to catalyst configurations including OC layers of ultra-low PGM loadings, alone or in combination with a base metal oxide, which are deposited onto either mixtures of doped ZrO2 and oxygen storage materials (OSM) or OSM alone. Further, the multi-zoned SPGM catalysts further include zoned impregnation layers with PGM, alone or in combination with Ba loadings. Additionally, three-zoned SPGM catalysts are produced including front and back zone catalysts that include binary spinel oxide compositions. Conversion performance of the aged SPGM catalysts and an aged PGM-based OEM catalyst are tested employing TWC low perturbation isothermal oscillating, isothermal steady-state sweep, and light-off test methodologies. Test results confirm the SPGM catalysts including ultra-low PGM loadings and spinel-based ZPGM WC layer are capable of providing significant conversion performance that is comparable to high PGM-based OEM catalyst.

公开(公告)号：US20170095803A1

公开(公告)日：2017-04-06

申请号：US14872532

申请日：2015-10-01

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J27/25 ,  B01J37/04 ,  B01J37/02 ,  B01J37/00 ,  B01J23/63 ,  B01J37/08

CPC classification number: B01J27/25 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/402 ,  B01D2255/9022 ,  B01D2258/012 ,  B01J23/002 ,  B01J23/34 ,  B01J23/42 ,  B01J37/0244 ,  B01J37/04 ,  B01J37/08 ,  Y02T10/22

Abstract: Sulfur-resistant synergized platinum group metals (SPGM) catalysts with significant oxidation capabilities are disclosed. Catalytic layers of SPGM catalyst samples are produced using conventional synthesis techniques to build a washcoat layer completely or substantially free of PGM material. The SPGM catalyst includes a washcoat layer comprising YMnO3 perovskite and an overcoat layer including a Pt composition deposited on a plurality of support oxides with total PGM loading of about 5 g/ft3. Resistance to sulfur poisoning and catalytic stability is observed under 1.3 gS/L condition to assess the influence that selected support oxides have on the DOC performance of the SPGM catalysts. The results indicate SPGM catalysts produced to include a layer of low amount of PGM catalyst material deposited on a plurality of support oxides added to a layer of ZPGM catalyst material are capable of providing significant improvements in sulfur resistance of SPGM catalyst systems.

公开(公告)号：US20170095800A1

公开(公告)日：2017-04-06

申请号：US14872609

申请日：2015-10-01

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J23/755 ,  B01J23/847 ,  B01J23/83

CPC classification number: B01J23/755 ,  B01D53/945 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/65 ,  B01J21/005 ,  B01J23/005 ,  B01J23/83 ,  B01J23/8474 ,  B01J35/002 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/72 ,  B01J2523/847

Abstract: Variations of ZPGM catalyst material compositions including doped Cu—Mn spinel supported on doped zirconia support oxide are disclosed. The disclosed ZPGM catalyst compositions include a small substitution of Ni within the A-site or B-site cation of a Cu—Mn spinel supported on doped zirconia support oxide, and produced by the incipient wetness (IW) methodology. Bulk powder ZPGM catalyst compositions are subjected to XRD analyses to determine the spinel phase formation and stability. Additionally, bulk powder ZPGM catalyst compositions are subjected to a steady-state isothermal sweep test to determine NO, CO, and THC conversion. The ZPGM catalyst material compositions including Ni-doped Cu—Mn spinel supported on doped zirconia support oxide exhibit improved levels in NO and CO conversions, which can be employed in ZPGM catalysts for a plurality of TWC applications, thereby leading to a more effective utilization of ZPGM catalyst materials with high thermal and chemical stability in TWC products.

公开(公告)号：US20170095794A1

公开(公告)日：2017-04-06

申请号：US14873045

申请日：2015-10-01

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Stephen J. Golden

IPC: B01J23/34 ,  B01J23/889 ,  B01J23/00

CPC classification number: B01J23/83 ,  B01D53/944 ,  B01D2255/204 ,  B01D2255/2061 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/65 ,  B01D2258/012 ,  B01J6/001 ,  B01J23/002 ,  B01J23/34 ,  B01J23/8892 ,  B01J2523/00 ,  B01J2523/24 ,  B01J2523/3712 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847 ,  B01J2523/36 ,  B01J2523/72 ,  B01J2523/47

Abstract: Zero-PGM (ZPGM) catalyst materials including pseudo-brookite compositions for use in diesel oxidation catalyst (DOC) applications are disclosed. The disclosed doped pseudo-brookite compositions include A-site partially doped pseudo-brookite compositions, such as, Sr-doped and Ce-doped pseudo-brookite compositions, as well as B-site partially doped pseudo-brookite compositions, such as, Fe-doped, Co-doped, Ni-doped, and Ti-doped pseudo-brookite compositions. The disclosed doped pseudo-brookite compositions, including calcination at various temperatures, are subjected to a DOC standard light-off (LO) test methodology to assess/verify catalyst activity as well as to determine the effect of the use of a dopant in an A-site cation or a B-site cation within a pseudo-brookite composition. The disclosed doped pseudo-brookite compositions exhibit higher NO oxidation catalyst activities when compared to bulk powder pseudo-brookite, thereby indicating improved thermal stability and catalyst activity when using a dopant in an A-site cation or in a B-site cation within a pseudo-brookite composition.

公开(公告)号：US20160361710A1

公开(公告)日：2016-12-15

申请号：US15182306

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 that possess stable reduction/oxidation (redox) reversibility useful for TWC and oxygen storage material (OSM) applications. The redox behavior of Cu—Mn spinel oxide powders is analyzed under oxidation-reduction environments to determine spinel structure stability. The XRD, TPR and XPS analyses confirm the redox stability and reversibility of the Cu—Mn spinel oxide.

Abstract translation: 本公开描述了零铂族金属（ZPGM）材料组合物，包括具有用于TWC和储氧材料（OSM）应用的稳定还原/氧化（氧化还原）可逆性的二元Cu-Mn尖晶石氧化物粉末。 在氧化还原环境下分析了Cu-Mn尖晶石氧化物粉末的氧化还原行为，以确定尖晶石结构的稳定性。 XRD，TPR和XPS分析证实了Cu-Mn尖晶石氧化物的氧化还原稳定性和可逆性。

公开(公告)号：US20160354765A1

公开(公告)日：2016-12-08

申请号：US14732379

申请日：2015-06-05

Applicant: Clean Diesel Technologies, Inc.

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

IPC: B01J23/847 ,  B01D53/94 ,  B01J35/00 ,  B01J35/02 ,  B01J23/20 ,  B01J23/46

CPC classification number: B01J23/8474 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/908 ,  B01J23/20 ,  B01J35/0006 ,  B01J37/0244 ,  Y02T10/22

Abstract: The present disclosure describes support oxides, including include Niobium Oxide, which are employed in three-way catalytic (TWC) systems. 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. The disclosed one or more of washcoat layer and/or overcoat layer are formed using a slurry that includes an oxide mixture and an Oxygen Storage Material. The disclosed oxide mixtures include niobium oxide (Nb2O5), zirconia, and alumina. Further, other disclosed oxide mixtures additionally include NiO.

Abstract translation: 本公开内容描述了用于三元催化（TWC）系统的载体氧化物，包括包括氧化铌。 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。 使用包括氧化物混合物和氧气存储材料的浆料形成所公开的一种或多种修补基面涂层和/或外涂层。 公开的氧化物混合物包括氧化铌（Nb 2 O 5），氧化锆和氧化铝。 此外，其它公开的氧化物混合物还包括NiO。

公开(公告)号：US09511358B2

公开(公告)日：2016-12-06

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 ,  B01J23/00 ,  B01J23/34 ,  B01J23/72 ,  B01D53/94 ,  B01J23/89 ,  C01B3/40 ,  C08K3/00 ,  H01M4/00 ,  C01B13/02 ,  C08K3/22 ,  B01J37/02

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。