METHOD FOR THE DIRECT SYNTHESIS OF IRON-CONTAINING AEI-ZEOLITE CATALYST
    1.
    发明申请
    METHOD FOR THE DIRECT SYNTHESIS OF IRON-CONTAINING AEI-ZEOLITE CATALYST 审中-公开
    直接合成含铁AEI-沸石催化剂的方法

    公开(公告)号:WO2017134006A1

    公开(公告)日:2017-08-10

    申请号:PCT/EP2017/051912

    申请日:2017-01-30

    摘要: A method for the direct synthesis of a crystalline material with the AEI zeolithic structure containing iron-species and being essentially free of alkali ions, comprising the following steps: (i) preparation of a mixture containing water, a high-silica zeolite as a main source of silica and alumina, an alkyl-substituted cyclic ammonium cation as organic structure directing agent (OSDA), a source of iron, and a source of an alkali metal ion [Alk], to obtain a final synthesis mixture having the following molar composition: SiO 2 : a AI 2 O 3 : b Fe : c OSDA : d Alk : e H 2 O wherein a is in the range from 0.001 to 0.2; wherein b is in the range from 0.001 to 0.2; wherein c is in the range from 0.01 to 2; wherein d is in the range from 0.001 to 2; wherein e is in the range from 1 to 200; (ii) crystallization of the mixture achieved in (i); (iii) recovery of the crystalline material achieved in (ii); (iv) calcination of the crystalline material from step (iii); and (v) removal of the alkali metal cation, present in the calcined crystalline material after step (iv) to obtain a final molar composition: SiO 2 : o AI 2 O 3 : p Fe : q Alk wherein o is in the range from 0.001 to 0.2, p is in the range from 0.001 to 0.2 and q is below 0.02.

    摘要翻译: 一种直接合成具有含铁物质且基本不含碱金属离子的AEI沸石结构的晶体材料的方法,其包括以下步骤:(i)制备含有水, 作为二氧化硅和氧化铝的主要来源的高硅沸石,作为有机结构导向剂(OSDA)的烷基取代的环状铵阳离子,铁的来源和碱金属离子的来源[Alk],以获得 具有以下摩尔组成的最终合成混合物:SiO 2:Al 2 O 3:b Fe:c OSDA:d Alk:e H 其中α在0.001至0.2的范围内; 其中b在0.001至0.2的范围内; 其中c在0.01至2的范围内; 其中d在0.001至2的范围内; 其中e在1至200的范围内; (ii)(i)中实现的混合物的结晶; (iii)回收(ii)中获得的晶体材料; (iv)煅烧来自步骤(iii)的晶体材料; 和(v)在步骤(iv)之后除去存在于煅烧结晶物质中的碱金属阳离子以获得最终摩尔组成:SiO 2:Al 2 O 3 3:p Fe:q Alk其中o O在0.001至0.2的范围内,p在0.001至0.2的范围内, i> q 低于0.02。

    MULTI-ZONED CATALYTIC TRAP AND METHODS OF MAKING AND USING THE SAME
    8.
    发明申请
    MULTI-ZONED CATALYTIC TRAP AND METHODS OF MAKING AND USING THE SAME 审中-公开
    多区催化裂纹及其制备方法和使用方法

    公开(公告)号:WO01074476A1

    公开(公告)日:2001-10-11

    申请号:PCT/US2001/007262

    申请日:2001-03-07

    摘要: A multi-zoned catalytic trap for conversion of NO>x , a platinum catalytic component in the amount of 0 to about 100 g/ft and a rhodium catalytic component in the amount of 0 to about 10 g/ft ; and a NOx sorbent comprising one or more basic oxygenated compounds of one or more alkaline earth metals and optionally, one or more basic oxygenated compounds of one or more alkali metals. In the second zone, the catalytic trap material comprises a refractory metal oxide support having dispersed thereon a palladium catalytic component in the amount of 0 to about 50 g/ft , a platinum catalytic component in the amount of about 10 to about 100 g/ft and a rhodium catalytic component in the amount of about 5 to about 20 g/ft ; and a NOx sorbent comprising one or more basic oxygenated compounds of one or more metals selected from the group consisting of alkali metals and alkaline earth metals. In the optional zone(s), the catalytic trap material comprises a refractory metal oxide support having dispersed thereon a palladium catalytic component in the amount of about 25 to about 75 g/ft , a platinum catalytic component in the amount of about 5 to about 30 g/ft and a rhodium catalytic component in the amount of 0 to about 10 g/ft ; and a NOx sorbent comprising one or more basic oxygenated compounds of one or more metals selected from the group consisting of alkali metals and alkaline earth metals.

    摘要翻译: 用于转化来自发动机的排气流中的NO> x 的多区域催化阱,该发动机以稀薄和化学计量或富含条件之间的周期性交替操作。 催化捕集器包括第一区域,第二区域和可选地设置在第一区域和第二区域之间的一个或多个中间区域。 每个区域包括涂覆在耐火载体构件上的催化捕集材料。 在第一区域中,催化捕集材料包含其上分散有约30至约300g / ft 3的量的钯催化组分的难熔金属氧化物载体,其量为0至约100的铂催化组分 g / ft 3和铑催化组分,其量为0至约10g / ft 3; 以及包含一种或多种碱土金属的一种或多种碱性氧化化合物和任选的一种或多种一种或多种碱金属的碱性氧化化合物的NOx吸附剂。 在第二区域中,催化捕集材料包括其上分散有0至约50g / ft 3的钯催化组分的难熔金属氧化物载体,其量为约10至约100的铂催化组分 g / ft 3和约5至约20g / ft 3的量的铑催化组分; 和包含一种或多种选自碱金属和碱土金属的一种或多种金属的碱性氧化化合物的NOx吸附剂。 在可选区域中,催化捕集材料包括其上分散有约25至约75g / ft 3的钯催化组分的难熔金属氧化物载体,其量为约 5至约30g / ft 3,铑催化组分的量为0至约10g / ft 3; 和包含一种或多种选自碱金属和碱土金属的一种或多种金属的碱性氧化化合物的NOx吸附剂。