Exhaust purifying catalyst
    42.
    发明授权
    Exhaust purifying catalyst 有权
    排气净化催化剂

    公开(公告)号:US08835349B2

    公开(公告)日:2014-09-16

    申请号:US13879830

    申请日:2011-10-20

    申请人: Takeshi Nobukawa

    发明人: Takeshi Nobukawa

    摘要: An exhaust purifying catalyst includes: a substrate; a first-stage catalyst that includes an oxygen storage capacity (OSC) material and that is provided on the substrate on an upstream side thereof in an exhaust gas flow direction; and a second-stage catalyst that includes an OSC material and that is provided on the substrate on a downstream side thereof in an exhaust gas flow direction. The OSC material included in the first-stage catalyst and the second-stage catalyst includes OSC material on which a noble metal is not supported. The proportion of the amount of the OSC material, on which a noble metal is not supported, and that is included in the second-stage catalyst with respect to the combined amount of the OSC material, on which a noble metal is not supported, and that is included in the first-stage catalyst and the second-stage catalyst is in a range of from 0 to 50 wt %.

    摘要翻译: 排气净化催化剂包括:基材; 第一级催化剂,其包括储氧容量(OSC)材料,并且在废气流动方向的上游侧设置在所述基板上; 以及第二级催化剂,其包括OSC材料,并且在排气流动方向的下游侧设置在所述基板上。 包含在第一级催化剂和第二级催化剂中的OSC材料包括不负载贵金属的OSC材料。 相对于不负载贵金属的OSC材料的组合量,不含有贵金属的OSC材料的量的比例和第二阶段催化剂中所含的量的比例,以及 第一级催化剂和第二级催化剂的含量在0〜50重量%的范围内。

    EXHAUST PURIFYING CATALYST
    44.
    发明申请
    EXHAUST PURIFYING CATALYST 有权
    排气净化催化剂

    公开(公告)号:US20130203588A1

    公开(公告)日:2013-08-08

    申请号:US13879830

    申请日:2011-10-20

    申请人: Takeshi Nobukawa

    发明人: Takeshi Nobukawa

    IPC分类号: B01D53/94 B01J23/63

    摘要: An exhaust purifying catalyst includes: a substrate; a first-stage catalyst that includes an oxygen storage capacity (OSC) material and that is provided on the substrate on an upstream side thereof in an exhaust gas flow direction; and a second-stage catalyst that includes an OSC material and that is provided on the substrate on a downstream side thereof in an exhaust gas flow direction. The OSC material included in the first-stage catalyst and the second-stage catalyst includes OSC material on which a noble metal is not supported. The proportion of the amount of the OSC material, on which a noble metal is not supported, and that is included in the second-stage catalyst with respect to the combined amount of the OSC material, on which a noble metal is not supported, and that is included in the first-stage catalyst and the second-stage catalyst is in a range of from 0 to 50 wt %.

    摘要翻译: 排气净化催化剂包括:基材; 第一级催化剂,其包括储氧容量(OSC)材料,并且在废气流动方向的上游侧设置在所述基板上; 以及第二级催化剂,其包括OSC材料,并且在排气流动方向的下游侧设置在所述基板上。 包含在第一级催化剂和第二级催化剂中的OSC材料包括不负载贵金属的OSC材料。 相对于不负载贵金属的OSC材料的组合量,不含有贵金属的OSC材料的量的比例和第二阶段催化剂中所含的量的比例,以及 第一级催化剂和第二级催化剂的含量在0〜50重量%的范围内。

    Process for the preparation of zeolites having B-CHA structure
    45.
    发明授权
    Process for the preparation of zeolites having B-CHA structure 有权
    制备具有B-CHA结构的沸石的方法

    公开(公告)号:US08409546B2

    公开(公告)日:2013-04-02

    申请号:US12950137

    申请日:2010-11-19

    IPC分类号: C01B33/36 C01B39/04 C01B39/00

    摘要: The present invention relates to a process for the preparation of zeolites having B-CHA framework structure and a composition comprising the molar ratio (n SiO2):B2O3, wherein n is at least 10, the process comprising (i) preparation of an aqueous solution containing at least one source for B2O3, at least one source for SiO2, at least one source of seeding crystals of chabazite structure, at least one organic structure directing agent (SDA) other than Tetramethylammonium hydroxide (TMAOH), acting as a template for the B-CHA structure, and Tetramethylammonium hydroxide (TMAOH), wherein the SDA or mixtures thereof are employed in such amounts that the aqueous solution in (i) exhibits a molar ratio of SDA:TMAOH of 0.01 to 5; (ii) hydrothermal crystallization of the aqueous solution according to (i); wherein B-CHA is essentially free of alkali metal and/or alkaline earth metal and the ratio of the [molar ratio (SiO2:B2O3)] of the gel composition:[molar ratio (SiO2:B2O3)] of the crystalline product having the chabazite structure is greater than 0.5.

    摘要翻译: 本发明涉及一种制备具有B-CHA骨架结构的沸石和包含摩尔比(n SiO 2):B 2 O 3,其中n至少为10的组合物的方法,该方法包括(i)制备水溶液 含有至少一种B 2 O 3源,至少一种SiO 2源,至少一种菱沸石结晶晶体源,至少一种除氢氧化四甲基铵(TMAOH)以外的有机结构导向剂(SDA),作为 B-CHA结构和四甲基氢氧化铵(TMAOH),其中SDA或其混合物的用量使得(i)中的水溶液的SDA:TMAOH的摩尔比为0.01至5; (ii)根据(i)的水溶液的水热结晶; 其中B-CHA基本上不含碱金属和/或碱土金属,并且具有凝胶组成的[摩尔比(SiO 2 :B 2 O 3)]与[ 菱沸石结构大于0.5。

    Catalyst for decomposing nitrous oxide and method for performing processes comprising formation of nitrous oxide
    48.
    发明授权
    Catalyst for decomposing nitrous oxide and method for performing processes comprising formation of nitrous oxide 有权
    用于分解一氧化二氮的催化剂和包括形成一氧化二氮的方法

    公开(公告)号:US07700519B2

    公开(公告)日:2010-04-20

    申请号:US10312993

    申请日:2001-07-04

    IPC分类号: B01J23/56

    摘要: The present invention relates to a catalyst comprising 0.1-10 mol % Co3-xMxO4, where M is Fe or Al and x=0-2, on a cerium oxide support for decomposition of N2O in gases containing NO. The catalyst may also contain 0.01-2 weight % ZrO2. The invention further comprises a method for performing a process comprising formation of N2O. The N2O containing gas is brought in contact with a catalyst comprising 0.1-10 mol % CO3-xMxO4, where M is Fe or Al and x=0-2, on a cerium oxide support, at 250-1000° C. The method may comprise that ammonia is oxidized in presence of an oxidation catalyst and that the thereby formed gas mixture is brought in contact with the catalyst comprising the cobalt component on cerium oxide support at a temperature of 500-1000° C.

    摘要翻译: 本发明涉及一种催化剂,其包含0.1-10摩尔%的Co 3-x M x O 4,其中M是Fe或Al,x = 0-2,用于在含NO的气体中分解N 2 O的氧化铈载体上。 催化剂还可以含有0.01-2重量%的ZrO 2。 本发明还包括一种用于执行包括形成N 2 O的方法。 使含N2O的气体在氧化铈载体上在250-1000℃下与包含0.1-10mol%CO 3-xM x O 4的催化剂接触,其中M为Fe或Al,x = 0-2。 包括在氧化催化剂的存在下氨被氧化,并且由此形成的气体混合物在500-1000℃的温度下与包含钴组分的催化剂在氧化铈载体上接触。

    Catalyst for decomposing nitrous oxide and method for performing processes comprising formation of nitrous oxide
    49.
    发明申请
    Catalyst for decomposing nitrous oxide and method for performing processes comprising formation of nitrous oxide 有权
    用于分解一氧化二氮的催化剂和包括形成一氧化二氮的方法

    公开(公告)号:US20040023796A1

    公开(公告)日:2004-02-05

    申请号:US10312993

    申请日:2003-06-25

    IPC分类号: B01D053/56

    摘要: The present invention relates to a catalyst comprising 0.1-10 mol % Co3-xMxO4, where M is Fe or Al and xnull0-2, on a cerium oxide support for decomposition of N2O in gases containing NO. The catalyst may also contain 0.01-2 weight % ZrO2. The invention further comprises a method for performing a process comprising formation of N2O. The N2O containing gas is brought in contact with a catalyst comprising 0.1-10 mol % C03-xMxO4, where M is Fe or Al and xnull0-2, on a cerium oxide support, at 250-1000null C. The method may comprise that ammonia is oxidized in presence of an oxidation catalyst and that the thereby formed gas mixture is brought in contact with the catalyst comprising the cobalt component on cerium oxide support at a temperature of 500-1000null C.

    摘要翻译: 本发明涉及一种催化剂,其包含0.1-10mol%的Co3-xMxO4,其中M为Fe或Al,x = 0-2,用于在含有NO的气体中分解N 2 O的氧化铈载体上。 催化剂还可以含有0.01-2重量%的ZrO 2。 本发明还包括一种用于执行包括形成N 2 O的方法。 使含N2O的气体在氧化铈载体上,在250-1000℃下与包含0.1-10mol%C03-xMxO4的催化剂接触,其中M为Fe或Al,x = 0-2。 包括在氧化催化剂的存在下氨被氧化,并且由此形成的气体混合物在500-1000℃的温度下与包含钴组分的催化剂在氧化铈载体上接触。