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.

    Process for upgrading an oligomerization product
    2.
    发明授权
    Process for upgrading an oligomerization product 失效
    升级低聚产物的方法

    公开(公告)号:US06660894B1

    公开(公告)日:2003-12-09

    申请号:US09718044

    申请日:2000-11-21

    CPC classification number: C10G65/043 C10G2400/10

    Abstract: A process is provided for upgrading an oligomerization product through hydrogenation and isomerization with some selective/minor cracking resulting in a synthetic lube base oil with improved pour point and viscosity index. The upgrading process includes contacting the oligomerization product with a hydrogenation catalyst and an isomerization catalyst under conversion conditions, which include the presence of hydrogen and a temperature sufficient to promote hydrogenation and isomerization with some selective/minor cracking. The hydrogenation catalyst contains a porous carrier material and a group VIII metal while the isomerization catalyst contains an aluminosilicate zeolite.

    Abstract translation: 提供了一种通过氢化和异构化的一些选择性/次要裂化来提纯低聚产物的方法,导致具有改进的倾点和粘度指数的合成润滑油基础油。 升级过程包括在转化条件下使低聚产物与氢化催化剂和异构化催化剂接触,转化条件包括氢的存在和足以促进氢化和异构化与一些选择性/次要裂化的温度。 氢化催化剂含有多孔载体材料和VIII族金属,同时异构化催化剂含有硅铝酸盐沸石。

    Catalyst composition and processes therefor and therewith
    3.
    发明授权
    Catalyst composition and processes therefor and therewith 失效
    催化剂组合物及其工艺及其

    公开(公告)号:US06627780B2

    公开(公告)日:2003-09-30

    申请号:US10338634

    申请日:2003-01-09

    Abstract: A catalyst composition and a process for hydrodealkylating a C9+ aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C6 to C8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises an alumina, a metal oxide, a phosphorus oxide and optionally, an acid site modifier selected from the group consisting of silicon oxides, sulfur oxides, boron oxides, magnesium oxides, tin oxides, titanium oxides, zirconium oxides, molybdenum oxides, germanium oxides, indium oxides, lanthanum oxides, cesium oxides, and combinations of any two or more thereof. The process comprises contacting a fluid which comprises a C9+ aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C9+ aromatic compound to a C6 to C8 aromatic hydrocarbon.

    Abstract translation: 公开了一种催化剂组合物和将C 9+芳族化合物例如1,2,4-三甲基苯加氢脱烷基化成C6-C8芳族烃如二甲苯的方法。 该组合物包含氧化铝,金属氧化物,氧化磷和任选的选自氧化硅,硫氧化物,氧化硼,氧化镁,氧化锡,氧化钛,氧化锆,氧化钼, 氧化锗,氧化铟,氧化镧,氧化铯,以及其任意两种以上的组合。 该方法包括在足以使C 9+芳族化合物转化为C 6至C 8芳族烃的条件下使包含C 9+芳族化合物的流体与催化剂组合物接触。

    Silylated water vapor treated zinc or gallium promoted zeolite and use thereof for the conversion of non-aromatic hydrocarbons to olefins and aromatic hydrocarbons
    5.
    发明授权
    Silylated water vapor treated zinc or gallium promoted zeolite and use thereof for the conversion of non-aromatic hydrocarbons to olefins and aromatic hydrocarbons 失效
    硅烷化水蒸汽处理的锌或镓促进沸石及其用于将非芳族烃转化为烯烃和芳族烃的沸石

    公开(公告)号:US06228789B1

    公开(公告)日:2001-05-08

    申请号:US09542761

    申请日:2000-04-04

    CPC classification number: C10G35/095 B01J29/061

    Abstract: A hydrocarbon conversion process in which the rate of coke formation is reduced without a significant sacrifice in light olefin and BTX yield by the use of a silylated, stabilized metal promoted zeolite catalyst. Another embodiment includes a novel silylated spinel/zeolite catalyst. Another embodiment includes a process for producing a zinc or gallium promoted zeolite in which the promoter is stabilized by a high temperature water vapor treatment in the presence of a metal oxide such as alumina and thereafter the stabilized catalyst precursor is calcined and silylated.

    Abstract translation: 一种烃转化方法,其中通过使用甲硅烷基化稳定的金属促进的沸石催化剂,在轻烯烃中显着降低焦炭形成速率并降低BTX产率。 另一个实施方案包括新的甲硅烷基化尖晶石/沸石催化剂。 另一个实施方案包括一种生产锌或镓的促进沸石的方法,其中助催化剂在金属氧化物如氧化铝存在下通过高温水蒸汽处理而稳定,之后将稳定的催化剂前体煅烧并进行甲硅烷基化。

    Method of preparing a zeolite based catalyst material
    6.
    发明授权
    Method of preparing a zeolite based catalyst material 失效
    制备沸石基催化剂材料的方法

    公开(公告)号:US06218328B1

    公开(公告)日:2001-04-17

    申请号:US09222446

    申请日:1998-12-29

    CPC classification number: B01J29/605 B01J29/60 B01J37/0009

    Abstract: A process in which a hydrocarbon feedstock containing n-butane is selectively dehydrogenated to a product containing butenes; a catalyst suitable for the selective dehydrogenation of a feedstock containing n-butane to provide a product containing butenes and a method for producing a catalyst suitable for the selective dehydrogenation of a feedstock containing n-butane to provide a product containing butenes are provided.

    Abstract translation: 将含有正丁烷的烃原料选择性脱氢成含有丁烯的产物的方法; 提供了适用于含有正丁烷的原料的选择性脱氢以提供含有丁烯的产物的催化剂,以及一种制备适用于含有正丁烷的原料的选择性脱氢以提供含有丁烯的产物的催化剂的方法。

    Catalyst composition and processes therefor and therewith
    9.
    发明授权
    Catalyst composition and processes therefor and therewith 失效
    催化剂组合物及其工艺及其

    公开(公告)号:US6114268A

    公开(公告)日:2000-09-05

    申请号:US116450

    申请日:1998-07-16

    Abstract: A catalyst composition and a process for hydrodealkylating a C.sub.9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises a zeolite, a metal oxide, and an activity modifier selected from the group consisting of silicon oxides, sulfur oxides, phosphorus oxides, boron oxides, magnesium oxides, tin oxides, titanium oxides, zirconium oxides, germanium oxides, indium oxides, lanthanum oxides, cesium oxides, and combinations of any two or more thereof. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.

    Abstract translation: 公开了一种催化剂组合物和将C 9+芳族化合物例如1,2,4-三甲基苯加氢脱烷基化成C6-C8芳族烃如二甲苯的方法。 该组合物包含沸石,金属氧化物和活性改性剂,其选自氧化硅,硫氧化物,氧化磷,氧化硼,氧化镁,氧化锡,氧化钛,氧化锆,氧化锗,氧化铟, 氧化镧,氧化铯及其任意两种以上的组合。 该方法包括在足以使C 9+芳族化合物转化为C 6至C 8芳族烃的条件下使包含C 9+芳族化合物的流体与催化剂组合物接触。

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