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119 条记录 (耗时 0.018 秒)

    CATALYST FOR REDUCING NITROGEN OXIDES AND METHOD FOR PRODUCING THE SAME
    41.
    发明申请
    CATALYST FOR REDUCING NITROGEN OXIDES AND METHOD FOR PRODUCING THE SAME 审中-公开
    用于还原氮氧化物的催化剂及其生产方法

    公开(公告)号：US20120020875A1

    公开(公告)日：2012-01-26

    申请号：US13188647

    申请日：2011-07-22

    申请人： Takeshi MATSUO ,  Takahiko Takewaki ,  Daisuke Nishioka ,  Kazunori Oshima ,  Haijun Chen ,  Hiroyuki Kakiuchi

    发明人： Takeshi MATSUO ,  Takahiko Takewaki ,  Daisuke Nishioka ,  Kazunori Oshima ,  Haijun Chen ,  Hiroyuki Kakiuchi

    IPC分类号： B01D53/94 ,  B01J29/85 ,  C01B39/54 ,  B82Y30/00

    CPC分类号： B01J29/85 ,  B01D53/9418 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/65 ,  B01D2255/707 ,  B01D2255/9202 ,  B01D2258/012 ,  B01J23/72 ,  B01J29/83 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0045 ,  B01J2229/20 ,  F01N2510/063

    摘要： The object is to provide an exhaust gas reduction catalyst that exhibit high nitrogen oxide reduction performance, and to provide a simple and efficient method for producing the catalyst, in which the amount of the waste liquid is reduced, further, an object of the invention is to provide a zeolite-containing catalyst for reducing nitrogen oxides, which does not use an expensive noble metal or the like and which has high nitrogen oxide reduction performance. The present invention relates to a catalyst for reducing nitrogen oxides, which comprises: zeolite at least containing an aluminium atom and a phosphorus atom in the framework thereof; and a metal supported on the zeolite, wherein a coefficient of variation of intensity of the metal is at least 20%, when performing an elemental mapping of the metal in the catalyst with an electron probe microanalyzer, and, a catalyst for reducing nitrogen oxides, which comprises the zeolite containing at least a silicon atom, a phosphorus atom and an aluminium atom, and having an adsorption retention rate of at least 80% in a water vapor cyclic adsorption/desorption test at 90° C.

    摘要翻译： 本发明的目的是提供一种具有高氮氧化物还原性能的废气还原催化剂，并且提供一种制备催化剂的简单有效的方法，其中废液的量减少，此外，本发明的目的是 以提供不使用昂贵的贵金属等并且具有高氮氧化物还原性能的还原氮氧化物的含沸石催化剂。 本发明涉及一种用于还原氮氧化物的催化剂，其包括：在其骨架中至少含有铝原子和磷原子的沸石; 和负载在沸石上的金属，其中当用电子探针显微分析仪进行催化剂中金属的元素映射时，金属的强度变化系数为至少20％，还原氮氧化物的催化剂， 其包含至少含有硅原子，磷原子和铝原子的沸石，并且在90℃的水蒸汽循环吸附/解吸试验中具有至少80％的吸附保持率。

    Thermal Stability of Copper-Manganese Spinel as Zero PGM Catalyst for TWC Application
    47.
    发明申请
    Thermal Stability of Copper-Manganese Spinel as Zero PGM Catalyst for TWC Application 有权
    铜锰尖晶石作为零PGM催化剂用于TWC应用的热稳定性

    公开(公告)号：US20160121308A1

    公开(公告)日：2016-05-05

    申请号：US14528746

    申请日：2014-10-30

    申请人： Zahra Nazarpoor ,  Anke Elizabeth Abken ,  Stephen J. Golden

    发明人： Zahra Nazarpoor ,  Anke Elizabeth Abken ,  Stephen J. Golden

    IPC分类号： B01J23/889

    CPC分类号： 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

    摘要： 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.

    摘要翻译： 公开了ZPGM材料组成的类型，以提高ZPGM催化剂体系对TWC应用的热稳定性的影响。 ZPGM催化剂体系样品在陶瓷基体上制备并配置有涂层，外涂层包括掺杂的氧化锆载体氧化物，以及包含Cu1Mn2O4尖晶石或Cu1Co1Mn1O4尖晶石的浸渍层。 ZPGM催化剂样品的测试包括老化温度和不同浸渍层材料的变化，在ZPGM催化剂体系的等温稳态扫描试验条件下开发，以评估性能，特别是NOx转化率和热稳定性水平。 结果表明，与Cu1Mn2O4尖晶石相比，在浸渍层中包含Cu1Co1Mn1O4的最合适的尖晶石的ZPGM催化剂体系表现出高的NOx转化率和显着的改善的热稳定性，适用于底层和紧耦合的TWC应用。 通过TPR测量证实，添加Co对Cu-Mn尖晶石组合物以提高热稳定性的效果。

    Systems and methods for zero-PGM binary catalyst having Cu, Mn, and Fe for TWC applications
    48.
    发明授权
    Systems and methods for zero-PGM binary catalyst having Cu, Mn, and Fe for TWC applications 有权
    用于TWC应用的具有Cu，Mn和Fe的零PGM二元催化剂的系统和方法

    公开(公告)号：US09216409B2

    公开(公告)日：2015-12-22

    申请号：US14530387

    申请日：2014-10-31

    申请人： Zahra Nazarpoor ,  Stephen J. Golden

    发明人： Zahra Nazarpoor ,  Stephen J. Golden

    IPC分类号： F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94 ,  B01J23/889 ,  B01J23/745 ,  B01J23/00

    CPC分类号： B01J23/8892 ,  B01D53/945 ,  B01D2255/2066 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/65 ,  B01J23/005 ,  B01J23/745 ,  Y02T10/22 ,  Y10S502/52712

    摘要： Variations of bulk powder catalyst material including Cu—Mn, Cu—Fe, and Fe—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinels on Pr6O11—ZrO2 support oxide, prepared using incipient wetness method. Activity measurements under isothermal steady state sweep test condition may be performed under rich to lean condition. Catalytic activity of samples may be compared to analyze the influence that different binary spinel system bulk powders may have on TWC performance of ZPGM materials for a plurality of TWC applications. Stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinel systems exhibit higher catalytic activity than non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinel systems. The influence of prepared Cu—Mn, Cu—Fe, and Fe—Mn spinel systems may lead into cost effective manufacturing solutions for ZPGM TWC systems.

    摘要翻译： 公开了用于ZPGM TWC应用的包括Cu-Mn，Cu-Fe和Fe-Mn尖晶石体系的散装粉末催化剂材料的变化。 公开的本体粉末催化剂样品包括使用初始湿度法制备的Pr6O11-ZrO2载体氧化物上的化学计量和非化学计量的Cu-Mn，Cu-Fe和Fe-Mn尖晶石。 在等温稳态扫描试验条件下的活性测定可以在浓缩条件下进行。 可以比较样品的催化活性，分析不同二元尖晶石体系粉末对多种TWC应用的ZPGM材料对TWC性能的影响。 化学计量Cu-Mn，Cu-Fe和Fe-Mn尖晶石体系表现出比非化学计量的Cu-Mn，Cu-Fe和Fe-Mn尖晶石体系更高的催化活性。 制备的Cu-Mn，Cu-Fe和Fe-Mn尖晶石系统的影响可能导致ZPGM TWC系统的成本有效的制造解决方案。