LAYERED THREE-WAY CONVERSION (TWC) CATALYST AND METHOD OF MANUFACTURING THE CATALYST

    公开(公告)号:WO2020121245A1

    公开(公告)日:2020-06-18

    申请号:PCT/IB2019/060713

    申请日:2019-12-12

    申请人: BASF CORPORATION

    摘要: The presently claimed invention provides a layered three-way catalyst composition for purification of exhaust gases from internal combustion engines; said catalyst comprises a first layer comprising i) palladium supported on at least one alumina component and at least one oxygen storage component; and ii) barium oxide; wherein said first layer is essentially free of strontium, and a second layer comprising: i) rhodium supported on at least one zirconia component and/ or alumina component; ii) strontium oxide and/or barium oxide; and iii) optionally, palladium supported on at least one alumina component. The presently claimed invention also provides a process for preparing the layered three-way catalyst composition which involves a technique such as incipient wetness impregnation technique(A); co-precipitation technique (B); or co-impregnation technique(C). The process includes preparing a first layer; preparing a second layer; and depositing the second layer on the first layer followed by calcination. The presently claimed invention further provides a a layered three-way catalytic article in which the three-way catalyst composition is deposited on a substrate in a layered fashion and its preparation.

    BASE METAL DOPED ZIRCONIUM OXIDE CATALYST SUPPORT MATERIALS

    公开(公告)号:WO2020046266A1

    公开(公告)日:2020-03-05

    申请号:PCT/US2018/048159

    申请日:2018-08-27

    申请人: BASF CORPORATION

    摘要: This disclosure is directed to catalyst compositions, catalytic articles for purifying exhaust gas emissions and methods of making and using the same. In particular, the disclosure relates to a catalytic article including a catalytic material on a substrate, wherein the catalytic material has a first layer and a second layer. The first layer includes a platinum group metal (PGM) component impregnated on a porous support material; and the second layer includes a rhodium component impregnated on a support material, wherein the support material is a composite material including zirconia doped with baria, alumina, or combinations thereof, wherein the zirconia-based support material includes zirconia in an amount from about 80 to about 99 wt.%.

    CORE/SHELL CATALYST PARTICLES AND METHOD OF MANUFACTURE
    3.
    发明申请
    CORE/SHELL CATALYST PARTICLES AND METHOD OF MANUFACTURE 审中-公开
    核/壳催化剂颗粒和制造方法

    公开(公告)号:WO2017205042A2

    公开(公告)日:2017-11-30

    申请号:PCT/US2017/031636

    申请日:2017-05-09

    申请人: BASF CORPORATION

    摘要: The invention provides an automotive catalyst composite effective for abating carbon monoxide, hydrocarbons, and NOx emission in an automotive exhaust gas stream, which includes a catalytic material on a carrier, the catalytic material including a plurality of core-shell support particles comprising a core and a shell surrounding the core, the core including a plurality of particles having a primary particle size distribution d 90 of up to about 5 µm, wherein the core particles comprise particles of one or more metal oxides, the shell including nanoparticles of one or more metal oxides, wherein the nanoparticles have a primary particle size distribution d90 in the range of about 5 nm to about 1000 nm (1 µm), and one or more platinum group metals (PGMs) on the core-shell support. The invention also provides an exhaust gas treatment system and related method of treating exhaust gas utilizing the catalyst composite.

    摘要翻译: 本发明提供一种汽车催化剂复合材料,其有效地减少汽车废气流中的一氧化碳,碳氢化合物和NOx的排放,所述汽车废气流包括在载体上的催化材料,所述催化材料包括多个芯 - 壳体支撑颗粒,其包含芯和围绕所述芯的壳,所述芯包含多个颗粒,所述颗粒的初级颗粒尺寸分布d 90高达约5微米,其中所述芯颗粒包含 一种或多种金属氧化物的颗粒,所述壳包括一种或多种金属氧化物的纳米颗粒,其中所述纳米颗粒具有在约5nm至约1000nm(1微米)范围内的初级颗粒尺寸分布d90, 更多的铂族金属(PGMs)在核心 - 壳层支架上。 本发明还提供了利用该催化剂复合物处理废气的废气处理系统和相关方法。

    LAYERED TRI-METALLIC CATALYTIC ARTICLE AND METHOD OF MANUFACTURING THE CATALYTIC ARTICLE

    公开(公告)号:WO2020190994A1

    公开(公告)日:2020-09-24

    申请号:PCT/US2020/023256

    申请日:2020-03-18

    申请人: BASF CORPORATION

    摘要: The present invention provides a tri-metallic layered catalytic article comprising a first layer comprising palladium supported on at least one of an oxygen storage component, and an alumina component; a second layer comprising platinum and rhodium, each supported on at least one of an oxygen storage component and a zirconia component; and a substrate, wherein the weight ratio of palladium to platinum is in the range of 1.0:0.4 to 1:2. The present invention also provides a process for preparing the tri-metallic layered catalytic article, an exhaust system for internal combustion engine and use of the tri-metallic layered catalytic article for purifying a gaseous exhaust stream.

    CORE/SHELL HYDROCARBON TRAP CATALYST AND METHOD OF MANUFACTURE
    6.
    发明申请
    CORE/SHELL HYDROCARBON TRAP CATALYST AND METHOD OF MANUFACTURE 审中-公开
    核/壳型烃捕捉催化剂及其制造方法

    公开(公告)号:WO2017153893A1

    公开(公告)日:2017-09-14

    申请号:PCT/IB2017/051298

    申请日:2017-03-06

    申请人: BASF CORPORATION

    发明人: DEEBA, Michel

    摘要: The invention provides an automotive catalyst composite that includes a catalytic material on a carrier, the catalytic material including a plurality of core-shell support particles including a core and a shell surrounding the core, wherein the core includes a plurality of particles having a primary particle size distribution d 90 of up to about 5 µm, wherein the core particles include particles of one or more molecular sieves and optionally particles of one or more refractory metal oxides; and wherein the shell comprises nanoparticles of one or more refractory metal oxides, wherein the nanoparticles have a primary particle size distribution d90 in the range of about 5 nm to about 1000 nm (1 µm); and optionally, one or more platinum group metals (PGMs) on the core-shell support. The invention also provides an exhaust gas treatment system and related method of treating exhaust gas utilizing the catalyst composite.

    摘要翻译: 本发明提供了一种汽车催化剂复合物,其包括在载体上的催化材料,所述催化材料包括多个核 - 壳载体颗粒,所述多个核 - 壳载体颗粒包含核和围绕所述核的壳,其中所述核包括 多个具有高达约5微米的初级颗粒尺寸分布d 90的颗粒,其中核颗粒包括一种或多种分子筛的颗粒和任选的一种或多种难熔金属氧化物的颗粒 ; 并且其中所述壳包含一种或多种难熔金属氧化物的纳米颗粒,其中所述纳米颗粒具有在约5nm至约1000nm(1微米)范围内的初级粒度分布d90; 和任选地,在核 - 壳载体上的一种或多种铂族金属(PGM)。 本发明还提供了利用该催化剂复合物处理废气的废气处理系统和相关方法。

    PROCESS FOR THE PREPARATION OF COATED MONOLITHS
    10.
    发明申请
    PROCESS FOR THE PREPARATION OF COATED MONOLITHS 审中-公开
    制备涂料单体的方法

    公开(公告)号:WO2011121562A1

    公开(公告)日:2011-10-06

    申请号:PCT/IB2011/051377

    申请日:2011-03-31

    摘要: The invention relates to a monolithic support member comprising channels with walls separating the channels from each other and having a coating deposited thereon, the non-coated channels having a polygonal cross-section profile, wherein the mean thickness dc of the coating in a corner of said cross-section profile is smaller than or equal to the mean thickness dE of the coating on an edge of said cross-section profile plus 85 micrometer; and further relates to a method for the preparation of such coated monolithic support member, the method comprising (i) providing a suspension having a viscosity in the range of from 0.5 to 100 mPas and having a solid content in the range of from 1 to 40 wt.-%, (ii) dispersing the suspension into a gas stream to obtain a gas stream comprising droplets having a droplet size in the range of from d10 greater than or equal to 1 micrometer to d90 smaller than or equal to 100 micrometer; and (iii) directing said gas stream comprising said droplet towards the monolithic support member along the axial direction of the channels of the support; and still further relates to the use of such coated monolithic support member, in particular as catalytic article in the automotive exhaust gas treatment.

    摘要翻译: 本发明涉及一种整体式支撑构件,其包括具有将通道彼此分离并且具有沉积在其上的涂层的通道,非涂覆通道具有多边形横截面轮廓,其中涂层的平均厚度dc 所述横截面轮廓小于或等于所述横截面轮廓边缘上的涂层的平均厚度dE加上85微米; 并且还涉及一种制备这种涂覆的整体式支撑构件的方法,该方法包括(i)提供粘度范围为0.5-100mPa·s且固体含量在1至40范围内的悬浮液 (ii)将悬浮液分散到气流中以获得包含液滴尺寸在d10大于或等于1微米至小于等于100微米的d90的液滴的气流; 和(iii)沿着所述支撑件的通道的轴向将包括所述液滴的所述气流引向所述整体式支撑构件; 并且还涉及这种涂覆的整体式支撑构件的使用,特别是作为汽车废气处理中的催化剂。