Stable support for Fischer-Tropsch catalyst
    1.
    发明授权
    Stable support for Fischer-Tropsch catalyst 有权
    稳定支持费 - 托催化剂

    公开(公告)号:US09233360B1

    公开(公告)日:2016-01-12

    申请号:US14482313

    申请日:2014-09-10

    摘要: A process has been developed for preparing a Fischer-Tropsch catalyst precursor and a Fischer-Tropsch catalyst made from the precursor. The process includes contacting a gamma alumina catalyst support material with a first solution containing a compound containing zinc and optionally containing P, Ti, V, Co, Ga, Ge, Mo, W and/or Pr to obtain a modified catalyst support material. The modified catalyst support material is calcined at a temperature of at least 500° C. The calcined modified catalyst support has a pore volume of at least 0.4 cc/g. The modified catalyst support is less soluble in acid solutions than an equivalent unmodified catalyst support. The modified catalyst support is contacted with a second solution which includes a precursor compound of an active cobalt catalyst component to obtain a catalyst precursor. The catalyst precursor is reduced to activate the catalyst precursor to obtain the Fischer-Tropsch catalyst. The catalyst has enhanced hydrothermal stability as measured by losing no more than 20% of its pore volume when exposed to water vapor.

    摘要翻译: 已经开发了制备费 - 托催化剂前体和由前体制备的费 - 托催化剂的方法。 该方法包括使γ氧化铝催化剂载体材料与含有锌化合物和任选地含有P,Ti,V,Co,Ga,Ge,Mo,W和/或Pr的第一溶液接触,以获得改性的催化剂载体材料。 改性的催化剂载体材料在至少500℃的温度下煅烧。煅烧的改性催化剂载体的孔体积至少为0.4cc / g。 改性的催化剂载体在酸溶液中比相当的未改性的催化剂载体更难溶解。 将改性的催化剂载体与包含活性钴催化剂组分的前体化合物的第二溶液接触以获得催化剂前体。 催化剂前体被还原以活化催化剂前体以获得费 - 托催化剂。 催化剂具有增强的水热稳定性,当暴露于水蒸气时,其通过损失其不超过其孔体积的20%来测量。

    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins
    2.
    发明申请
    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins 有权
    含有菱沸石的分子筛的合成及其在含氧化合物转化为烯烃的用途

    公开(公告)号:US20070100185A1

    公开(公告)日:2007-05-03

    申请号:US11521155

    申请日:2006-09-14

    IPC分类号: C07C1/00 C01B39/00 C01B39/48

    摘要: The synthesis of a crystalline material, in particular, a high silica zeolite, comprising a chabazite-type framework molecular sieve is conducted in the presence of an organic directing agent having the formula: [R1R2R3N—R4]+Q− wherein R1 and R2 are independently selected from hydrocarbyl groups and hydroxy-substituted hydrocarbyl groups having from 1 to 3 carbon atoms, provided that R1 and R2 may be joined to form a nitrogen-containing heterocyclic structure, R3 is an alkyl group having 2 to 4 carbon atoms and R4 is selected from a 4- to 8-membered cycloalkyl group, optionally, substituted by 1 to 3 alkyl groups each having from 1 to 3 carbon atoms; and a 4- to 8-membered heterocyclic group having from 1 to 3 heteroatoms, said heterocyclic group being, optionally, substituted by 1 to 3 alkyl groups each having from 1 to 3 carbon atoms and the or each heteroatom in said heterocyclic group being selected from the group consisting of O, N, and S, or R3 and R4 are hydrocarbyl groups having from 1 to 3 carbon atoms joined to form a nitrogen-containing heterocyclic structure; and Q− is a anion.

    摘要翻译: 包含菱沸石型框架分子筛的结晶材料,特别是高二氧化硅沸石的合成在有机导向剂的存在下进行,所述有机导向剂具有以下结构式:<?in-line-formula description =“In-line 公式“end =”lead“?> [R 1] 2 3 <?in-line-formula description =“In-line Formulas”end =“tail”?>其中R 1和R 2 > 2个独立地选自烃基和具有1至3个碳原子的羟基取代的烃基,条件是R 1和R 2可以连接 形成含氮杂环结构,R 3是具有2至4个碳原子的烷基,R 4选自4-至8-元环烷基 任选被1至3个具有1至3个碳原子的烷基取代; 和具有1至3个杂原子的4至8元杂环基,所述杂环基任选被1至3个具有1至3个碳原子的烷基取代,并且所述杂环基中的每个杂原子被选定 由O,N和S组成的组,或R 3和R 4是具有1至3个碳原子的烃基,连接形成含氮杂环 结构体; 而Q 是阴离子。