Selective para-xylene production via methylation of toluene with methanol in the presence of modified HZSM-5 catalyst

    公开(公告)号:US20060128556A1

    公开(公告)日:2006-06-15

    申请号:US11334703

    申请日:2006-01-18

    Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.

    Hydrotreating catalyst composition and processes therefor and therewith
    2.
    发明授权
    Hydrotreating catalyst composition and processes therefor and therewith 失效
    加氢处理催化剂组合物及其工艺及其

    公开(公告)号:US5922630A

    公开(公告)日:1999-07-13

    申请号:US82399

    申请日:1998-05-20

    Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C.sub.9 + aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an aluminosilicate, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon. Also disclosed is a process for producing the catalyst composition which comprises: (1) contacting a zeolite with steam to produce a steamed zeolite; (2) optional contacting the steamed zeolite with an effective amount of an acid under a condition sufficient to effect a reduction in aluminum content of the zeolite to produce an acid-leached zeolite; and (3) impregnating the steamed or acid-leached zeolite with an effective amount of a metal compound under a condition sufficient to effect the production of a metal-promoted zeolite.

    Abstract translation: 公开了一种催化剂组合物和将烃流例如C9 +芳族化合物转化成C6至C8芳族烃如二甲苯的方法。 催化剂组合物包含铝硅酸盐和金属,其中铝与硅的重量比在约0.002:1至约0.6:1的范围内。 该方法包括使烃流与催化剂组合物在足以使碳氢化合物转化为C 6至C 8芳族烃的条件下接触。 还公开了一种生产催化剂组合物的方法,其包括:(1)使沸石与蒸汽接触以产生蒸汽沸石; (2)在足以使沸石的铝含量降低以产生酸浸出的沸石的条件下,任选地将蒸汽沸石与有效量的酸接触; 和(3)在足以实现金属促进沸石的生产的条件下,用有效量的金属化合物浸渍蒸汽或酸浸出的沸石。

    Methods of preparing an aromatization catalyst
    3.
    发明授权
    Methods of preparing an aromatization catalyst 有权
    制备芳构化催化剂的方法

    公开(公告)号:US08664145B2

    公开(公告)日:2014-03-04

    申请号:US12617483

    申请日:2009-11-12

    Applicant: An-Hsiang Wu

    Inventor: An-Hsiang Wu

    Abstract: A method of preparing a fresh catalyst comprising impregnating a metal into a catalyst support to produce an impregnated catalyst, dispersing the metal in the impregnated catalyst to produce an impregnated, dispersed catalyst, contacting the impregnated, dispersed catalyst with an activating composition to produce an impregnated, dispersed, activated catalyst, and thermally treating the impregnated, dispersed, activated catalyst to produce a fresh catalyst wherein the activating composition is in the liquid phase.

    Abstract translation: 一种制备新鲜催化剂的方法,包括将金属浸渍到催化剂载体中以产生浸渍的催化剂,将金属分散在浸渍的催化剂中以产生浸渍的分散的催化剂,使浸渍的分散的催化剂与活化组合物接触以产生浸渍 ,分散的活化催化剂,并热处理浸渍的分散的活化催化剂以产生新鲜的催化剂,其中活化组合物处于液相。

    Ethylene dimerization
    8.
    发明授权
    Ethylene dimerization 失效
    乙烯二聚

    公开(公告)号:US5221775A

    公开(公告)日:1993-06-22

    申请号:US854137

    申请日:1992-03-19

    Applicant: An-Hsiang Wu

    Inventor: An-Hsiang Wu

    Abstract: An ethylene dimerization process is provided wherein ethylene is contacted with an organonickel (0) compound and a phosphine compound in a fluorinated alcohol solvent to produce a precursor reaction mixture, followed by contacting ethylene with the precursor reaction mixture and a fluorinated organoacid to produce a product reaction mixture comprising a C.sub.4 fraction of predominantly 2-butenes.

    Aromatization catalyst and methods of making and using same
    10.
    发明授权
    Aromatization catalyst and methods of making and using same 有权
    芳香化催化剂及其制备和使用方法

    公开(公告)号:US07153801B2

    公开(公告)日:2006-12-26

    申请号:US10464195

    申请日:2003-06-18

    Applicant: An-Hsiang Wu

    Inventor: An-Hsiang Wu

    CPC classification number: B01J37/0203 B01J29/62 C10G35/095

    Abstract: A method of making a catalyst composition, comprising impregnating a large pore zeolite support with a platinum precursor and at least one organic ammonium halide precursor. In an embodiment, the ammonium halide precursor is represented by the formula N(R)4X, where X is a halide and R is a substituted or unsubstituted carbon chain molecule having 1–20 carbon atoms wherein each R may be the same or different. In an embodiment, the ammonium halide precursor comprises at least one acid halide and at least one ammonium hydroxide represented by the formula N(R′)4OH, where R′ is hydrogen or a substituted or unsubstituted carbon chain molecule having 1–20 carbon atoms wherein each R′ may be the same or different. A process for aromatizing a hydrocarbon using said catalyst composition.

    Abstract translation: 一种制备催化剂组合物的方法,包括用铂前体和至少一种有机卤化铵前体浸渍大孔沸石载体。 在一个实施方案中,卤化铵前体由式N(R)4 X X表示,其中X是卤化物,R是具有1-20个碳原子的取代或未取代的碳链分子,其中每个 R可以相同或不同。 在一个实施方案中,卤化铵前体包含至少一种酰卤和至少一种由式N(R')4 OH表示的氢氧化铵,其中R'是氢或取代或未取代的碳 具有1-20个碳原子的链分子,其中每个R'可以相同或不同。 一种使用所述催化剂组合物使烃芳构化的方法。

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