Diesel exhaust gas treatment system
    1.
    发明授权
    Diesel exhaust gas treatment system 有权
    柴油机废气处理系统

    公开(公告)号:US08241579B2

    公开(公告)日:2012-08-14

    申请号:US13242341

    申请日:2011-09-23

    摘要: A catalyst composition for facilitating the oxidation of soot from diesel engine exhaust is provided. The catalyst composition includes a catalytic metal selected from Pt, Pd, Pt—Pd, Ag, or combinations thereof, an active metal oxide component containing Cu and La, and a support selected from alumina, silica, zirconia, or combinations thereof. The platinum group metal loading of the composition is less than about 20 g/ft3. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the active metal oxide precursor(s) and the catalytic metal precursor(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, and exhibits minimal backpressure.

    摘要翻译: 提供了一种用于促进柴油机废气中的烟灰氧化的催化剂组合物。 催化剂组合物包括选自Pt,Pd,Pt-Pd,Ag或其组合的催化剂金属,含有Cu和La的活性金属氧化物组分,以及选自氧化铝,二氧化硅,氧化锆或其组合的载体。 组合物的铂族金属负载量小于约20g / ft 3。 可以通过用用甘油和/或蔗糖改性的氧化铝,二氧化硅或氧化锆溶胶溶液浸渍过滤器,将催化剂组合物提供在柴油机微粒过滤器上,用稳定溶液浸渍过滤器,并用含有活性物质的溶液浸渍过滤器 金属氧化物前体和催化金属前体。 所得到的催化剂涂覆的柴油颗粒过滤器提供有效的烟灰氧化,显示出良好的热稳定性,具有高的BET表面积,并表现出最小的背压。

    Carbon Monoxide Catalyst
    2.
    发明申请
    Carbon Monoxide Catalyst 有权
    一氧化碳催化剂

    公开(公告)号:US20070129247A1

    公开(公告)日:2007-06-07

    申请号:US11565699

    申请日:2006-12-01

    IPC分类号: B01J23/40

    摘要: The invention relates to a catalyst for the oxidation of carbon monoxide (CO) at low temperatures, which is a catalytically active composition based on platinum and cobalt. The catalyst can be used in the removal of CO from hydrogen-rich gas for fuel cell technology in order to avoid poisoning of the electrodes with CO. Further fields of application relate to the automobile sector, in particular the effective removal of CO during cold starting of a diesel or petrol engine and also air purification systems for quality control of air in interior spaces, e.g., removal of CO in a tunnel, an underground railway, multistory car parks or submarines.

    摘要翻译: 本发明涉及一种用于在低温下氧化一氧化碳(CO)的催化剂,其是基于铂和钴的催化活性组合物。 该催化剂可用于从用于燃料电池技术的富氢气体中除去CO,以避免电极与CO的中毒。其它应用领域涉及汽车行业,特别是在冷起动期间CO的有效去除 柴油或汽油发动机,以及空气净化系统,用于内部空间的空气质量控制,例如在隧道,地下铁路,多停车场或潜艇中移除CO。

    Soot oxidation catalyst and method of making
    3.
    发明授权
    Soot oxidation catalyst and method of making 有权
    烟灰氧化催化剂及其制备方法

    公开(公告)号:US08052937B2

    公开(公告)日:2011-11-08

    申请号:US12784209

    申请日:2010-05-20

    摘要: A catalyst composition for facilitating the oxidation of soot from diesel engine exhaust is provided. The catalyst composition includes a catalytic metal selected from Pt, Pd, Pt—Pd, Ag, or combinations thereof, an active metal oxide component containing Cu and La, and a support selected from alumina, silica, zirconia, or combinations thereof. The platinum group metal loading of the composition is less than about 20 g/ft3. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the active metal oxide precursor(s) and the catalytic metal precursor(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, and exhibits minimal backpressure.

    摘要翻译: 提供了一种用于促进柴油机废气中的烟灰氧化的催化剂组合物。 催化剂组合物包括选自Pt,Pd,Pt-Pd,Ag或其组合的催化剂金属,含有Cu和La的活性金属氧化物组分,以及选自氧化铝,二氧化硅,氧化锆或其组合的载体。 组合物的铂族金属负载量小于约20g / ft 3。 可以通过用用甘油和/或蔗糖改性的氧化铝,二氧化硅或氧化锆溶胶溶液浸渍过滤器,将催化剂组合物提供在柴油机微粒过滤器上,用稳定溶液浸渍过滤器,并用含有活性物质的溶液浸渍过滤器 金属氧化物前体和催化金属前体。 所得到的催化剂涂覆的柴油颗粒过滤器提供有效的烟灰氧化,显示出良好的热稳定性,具有高的BET表面积,并表现出最小的背压。

    Soot oxidation catalyst and method of making
    5.
    发明申请
    Soot oxidation catalyst and method of making 有权
    烟灰氧化催化剂及其制备方法

    公开(公告)号:US20070219088A1

    公开(公告)日:2007-09-20

    申请号:US11385005

    申请日:2006-03-20

    IPC分类号: B01J23/00

    摘要: A catalyst composition for facilitating the oxidation of soot from diesel engine exhaust is provided. The catalyst composition includes a catalytic metal selected from Pt, Pd, Pt—Pd, Ag, or combinations thereof, an active metal oxide component containing Cu and La, and a support selected from alumina, silica, zirconia, or combinations thereof. The platinum group metal loading of the composition is less than about 20 g/ft3. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the active metal oxide precursor(s) and the catalytic metal precursor(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, and exhibits minimal backpressure.

    摘要翻译: 提供了一种用于促进柴油机废气中的烟灰氧化的催化剂组合物。 催化剂组合物包括选自Pt,Pd,Pt-Pd,Ag或其组合的催化剂金属,含有Cu和La的活性金属氧化物组分,以及选自氧化铝,二氧化硅,氧化锆或其组合的载体。 组合物的铂族金属负载量小于约20g / ft 3。 催化剂组合物可以通过用用甘油和/或蔗糖改性的氧化铝,二氧化硅或氧化锆溶胶溶液浸渍过滤器而设置在柴油机微粒过滤器上,用稳定溶液浸渍过滤器,并用含有活性物质的溶液浸渍过滤器 金属氧化物前体和催化金属前体。 所得到的催化剂涂覆的柴油颗粒过滤器提供有效的烟灰氧化,显示出良好的热稳定性,具有高的BET表面积,并表现出最小的背压。

    DIESEL EXHAUST GAS TREATMENT SYSTEM
    6.
    发明申请
    DIESEL EXHAUST GAS TREATMENT SYSTEM 有权
    柴油机排气处理系统

    公开(公告)号:US20120011832A1

    公开(公告)日:2012-01-19

    申请号:US13242341

    申请日:2011-09-23

    IPC分类号: F01N3/035

    摘要: A catalyst composition for facilitating the oxidation of soot from diesel engine exhaust is provided. The catalyst composition includes a catalytic metal selected from Pt, Pd, Pt—Pd, Ag, or combinations thereof, an active metal oxide component containing Cu and La, and a support selected from alumina, silica, zirconia, or combinations thereof. The platinum group metal loading of the composition is less than about 20 g/ft3. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the active metal oxide precursor(s) and the catalytic metal precursor(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, and exhibits minimal backpressure.

    摘要翻译: 提供了一种用于促进柴油机废气中的烟灰氧化的催化剂组合物。 催化剂组合物包括选自Pt,Pd,Pt-Pd,Ag或其组合的催化剂金属,含有Cu和La的活性金属氧化物组分,以及选自氧化铝,二氧化硅,氧化锆或其组合的载体。 组合物的铂族金属负载量小于约20g / ft 3。 催化剂组合物可以通过用用甘油和/或蔗糖改性的氧化铝,二氧化硅或氧化锆溶胶溶液浸渍过滤器而设置在柴油机微粒过滤器上,用稳定溶液浸渍过滤器,并用含有活性物质的溶液浸渍过滤器 金属氧化物前体和催化金属前体。 所得到的催化剂涂覆的柴油颗粒过滤器提供有效的烟灰氧化,显示出良好的热稳定性,具有高的BET表面积,并表现出最小的背压。

    SOOT OXIDATION CATALYST AND METHOD OF MAKING
    7.
    发明申请
    SOOT OXIDATION CATALYST AND METHOD OF MAKING 有权
    有氧氧化催化剂及其制备方法

    公开(公告)号:US20100223918A1

    公开(公告)日:2010-09-09

    申请号:US12784209

    申请日:2010-05-20

    IPC分类号: F01N3/035 B01D50/00 B05D1/36

    摘要: A catalyst composition for facilitating the oxidation of soot from diesel engine exhaust is provided. The catalyst composition includes a catalytic metal selected from Pt, Pd, Pt—Pd, Ag, or combinations thereof, an active metal oxide component containing Cu and La, and a support selected from alumina, silica, zirconia, or combinations thereof. The platinum group metal loading of the composition is less than about 20 g/ft3. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the active metal oxide precursor(s) and the catalytic metal precursor(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, and exhibits minimal backpressure.

    摘要翻译: 提供了一种用于促进柴油机废气中的烟灰氧化的催化剂组合物。 催化剂组合物包括选自Pt,Pd,Pt-Pd,Ag或其组合的催化剂金属,含有Cu和La的活性金属氧化物组分,以及选自氧化铝,二氧化硅,氧化锆或其组合的载体。 组合物的铂族金属负载量小于约20g / ft 3。 催化剂组合物可以通过用用甘油和/或蔗糖改性的氧化铝,二氧化硅或氧化锆溶胶溶液浸渍过滤器而设置在柴油机微粒过滤器上,用稳定溶液浸渍过滤器,并用含有活性物质的溶液浸渍过滤器 金属氧化物前体和催化金属前体。 所得到的催化剂涂覆的柴油颗粒过滤器提供有效的烟灰氧化,显示出良好的热稳定性,具有高的BET表面积,并表现出最小的背压。

    CATALYST COMPOSITION FOR DIESEL PARTICULATE FILTER
    8.
    发明申请
    CATALYST COMPOSITION FOR DIESEL PARTICULATE FILTER 有权
    柴油颗粒过滤器催化剂组合物

    公开(公告)号:US20070245724A1

    公开(公告)日:2007-10-25

    申请号:US11766397

    申请日:2007-06-21

    IPC分类号: F01N3/021

    摘要: A catalyst composition is provided for use on a diesel particulate filter which facilitates the oxidation of soot from diesel engine exhaust and which generates low NO2 emissions during regeneration of the filter. The catalyst composition includes a catalytic metal comprising a platinum group metal selected from Pt, Pd, Pt—Pd, or combinations thereof, an active metal oxide component containing Cu and La; and an oxide component selected from oxides of Co, Fe, or combinations thereof. The catalyst composition includes a support selected from alumina, silica, zirconia, or combinations thereof. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the catalyst metal precursor(s), the active metal oxide precursor(s) and the Co or Fe oxide(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, exhibits minimal backpressure, and produces low NO2 emissions during filter regeneration.

    摘要翻译: 提供催化剂组合物用于柴油微粒过滤器,其有利于烟灰从柴油发动机排气中氧化并且在过滤器的再生期间产生低的NO 2 2排放。 催化剂组合物包括含有选自Pt,Pd,Pt-Pd或其组合的铂族金属的催化金属,含有Cu和La的活性金属氧化物组分; 和选自Co,Fe的氧化物或其组合的氧化物组分。 催化剂组合物包括选自氧化铝,二氧化硅,氧化锆或其组合的载体。 可以通过用用甘油和/或蔗糖改性的氧化铝,二氧化硅或氧化锆溶胶溶液浸渍过滤器,将催化剂组合物提供在柴油机微粒过滤器上,用稳定溶液浸渍过滤器,并用含有催化剂的溶液浸渍过滤器 金属前体,活性金属氧化物前体和Co或Fe氧化物。 所得到的催化剂涂覆的柴油颗粒过滤器提供有效的烟灰氧化,显示出良好的热稳定性,具有高的BET表面积,显示最小的背压,并且在过滤器再生期间产生低的NO 2 2排放。

    SOx trap for diesel and lean-burn gasoline automotive applications
    10.
    发明申请
    SOx trap for diesel and lean-burn gasoline automotive applications 有权
    柴油和稀燃汽油汽油应用的SOx陷阱

    公开(公告)号:US20050145827A1

    公开(公告)日:2005-07-07

    申请号:US10748594

    申请日:2003-12-30

    IPC分类号: B01D53/86 B01D53/94 C09K3/00

    摘要: The present invention provides a regenerable catalyst composition suitable for entrapping SOx. The composition of the invention comprises a copper oxide having the formula (Cu/(A oxide) where A oxide is SiO2, Zr—SiO2, A12O3, TiO2—Al2O3, ZrO2 and In2O3 or mixtures thereof. Copper loading may vary from about 10 to 60 mol % and is preferably about 25 mol %. The catalyst composition adsorbs SOx as metal sulfate under lean conditions and desorbs accumulated SOx as SO2 under rich conditions. Such reversible SOx trap are able to operate under conventional NOx trap operating conditions to prevent sulfur poisoning of the NOx trap. Furthermore, these traps may be regenerated under rich conditions at 300-450° C. In another embodiment of the present invention, an irreversible SOx trap capable of collecting SOx under lean conditions is provided. The traps of this embodiment include praseodymia, zirconia-praseodymia and mixed manganese-yttria and mixtures thereof.

    摘要翻译: 本发明提供了适用于捕集SO x x的可再生催化剂组合物。 本发明的组合物包含具有式(Cu /(氧化物))的氧化铜,其中A氧化物为SiO 2,Zr-SiO 2,Al 2 3/3,TiO 2,Al 2 O 3,ZrO 2,N 3, 铜和负载可以在约10至60mol%之间变化,优选约25mol%,催化剂组合物吸附SO 3, 在贫条件下作为金属硫酸盐,在浓条件下,SO 2 SO 2作为SO 2 SO 2解吸,这种可逆的SO x X < 捕集阱能够在常规的捕集阱操作条件下进行操作,以防止NO x陷阱的硫中毒。此外,这些捕集阱可以在富含条件下在300-450 在本发明的另一个实施方案中,提供了能够在稀薄条件下收集SO x的不可逆SO 2捕集阱,该实施方案的捕集阱包括脯氨酸,z 氧化镨和混合锰 - 氧化钇及其混合物。