METHOD FOR SELECTIVE DEALKYLATION OF ALKYL-SUBSTITUTED C9+ AROMATIC COMPOUNDS USING BIMODAL POROUS DEALKYLATION CATALYST AT LOW TEMPERATURE
    12.
    发明申请
    METHOD FOR SELECTIVE DEALKYLATION OF ALKYL-SUBSTITUTED C9+ AROMATIC COMPOUNDS USING BIMODAL POROUS DEALKYLATION CATALYST AT LOW TEMPERATURE 有权
    在低温下使用双模多孔脱乙酰化催化剂选择性取代烷基取代的C9 +芳族化合物的方法

    公开(公告)号:US20130165727A1

    公开(公告)日:2013-06-27

    申请号:US13530414

    申请日:2012-06-22

    IPC分类号: C07C4/18

    摘要: Disclosed is a method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using a bimodal porous dealkylation catalyst at a low temperature. The catalyst has a bimodal porous structure including both mesopores and micropores. The catalyst includes a crystalline aluminosilicate and a metal. The catalyst is highly active at a low temperature. According to the method, C9+ aromatic compounds substituted with at least one C2+ alkyl group as by-products formed by xylene production can be selectively dealkylated and converted to BTX, etc. on a large scale within a short time. In addition, the method is an environmentally friendly process entailing reduced waste treatment cost when compared to conventional mesitylene production methods. Therefore, high value-added mesitylene can be separated from low value-added C9+ aromatic compounds at lower cost compared to conventional methods. Furthermore, the supported metal catalyst is easy to recover after dealkylation and is recyclable, thereby contributing to reduced cost.

    摘要翻译: 公开了使用双峰多孔脱烷基化催化剂在低温下选择性烷基转移烷基取代的C 9+芳族化合物的方法。 催化剂具有包括中孔和微孔的双峰多孔结构。 催化剂包括结晶硅铝酸盐和金属。 该催化剂在低温下具有高活性。 根据该方法,通过二甲苯生成形成的作为副产物的至少一个C2 +烷基取代的C9 +芳香族化合物可以选择性地脱烷基化并在短时间内大规模转化为BTX等。 此外,与常规的均三甲苯生产方法相比,该方法是一种环境友好的方法,降低了废物处理成本。 因此,与常规方法相比,高附加值的均三甲苯可以以低成本的C9 +芳族化合物分离。 此外,负载金属催化剂在脱烷基化后容易回收并且是可回收的,从而有助于降低成本。

    EUO-structural-type zeolite containing the alkyl quinuclidinium structuring agent, process for preparation and use as catalyst
    16.
    发明授权
    EUO-structural-type zeolite containing the alkyl quinuclidinium structuring agent, process for preparation and use as catalyst 失效
    含有烷基奎宁环结构剂的EUO结构型沸石,其制备方法和用作催化剂

    公开(公告)号:US08038982B2

    公开(公告)日:2011-10-18

    申请号:US10579205

    申请日:2004-11-09

    IPC分类号: C01B39/04 C07C5/27

    摘要: An EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese is described. It contains at least one alkyl quinuclidinium cation in its intracrystalline pores and has an N/X atomic ratio of more than 0.065, whereby N represents the nitrogen element. This invention also relates to a process for preparation of said zeolite and the use of the latter as an acidic solid in a process for conversion of hydrocarbon feedstocks.

    摘要翻译: 包含选自硅和锗中的至少一种元素X和选自铝,铁,镓,钒,锆,钼,砷,锑,铬中的至少一种元素T的EUO结构型沸石 并描述了锰。 它在其晶内孔中含有至少一个烷基奎宁环鎓阳离子,其N / X原子比大于0.065,由此N代表氮元素。 本发明还涉及一种制备所述沸石的方法以及后者在烃原料转化方法中作为酸性固体的用途。

    Hydrocarbon conversion processes using UZM-29 and UZM-29HS crystalline zeolitic compositions
    17.
    发明授权
    Hydrocarbon conversion processes using UZM-29 and UZM-29HS crystalline zeolitic compositions 有权
    使用UZM-29和UZM-29HS结晶沸石组合物的烃转化方法

    公开(公告)号:US08017824B2

    公开(公告)日:2011-09-13

    申请号:US12535248

    申请日:2009-08-04

    CPC分类号: C07C5/2775 C07C1/20

    摘要: This invention relates to hydrocarbon conversion processes using UZM-29 and UZM-29HS zeolitic compositions. The UZM-29 zeolites are represented by the empirical formula: Mmn+R+rAl1−xExSiyOz UZM-29 has the PHI structure type topology but is thermally stable up to a temperature of at least 350° C. UZM-29HS is a high silica version of UZM-29 and is represented by the empirical formula: M1′n+aAl(1−x)ExSiyOz. Examples of the hydrocarbon conversion processes are isomerization of alkanes, especially butane and the conversion of oxygenates to olefins.

    摘要翻译: 本发明涉及使用UZM-29和UZM-29HS沸石组合物的烃转化方法。 UZM-29沸石由经验式表示:Mmn + R + rAl1-xExSiyOz UZM-29具有PHI结构类型拓扑,但在至少350℃的温度下是热稳定的。UZM-29HS是高二氧化硅 版本的UZM-29,由经验公式M1'n + aAl(1-x)ExSiyOz表示。 烃转化方法的实例是烷烃异构化,特别是丁烷和含氧化合物转化为烯烃。

    PROCESS FOR ISOMERIZING A NON-EQUILIBRIUM ALKYLAROMATIC FEED MIXTURE AND AN AROMATIC PRODUCTION FACILITY
    18.
    发明申请
    PROCESS FOR ISOMERIZING A NON-EQUILIBRIUM ALKYLAROMATIC FEED MIXTURE AND AN AROMATIC PRODUCTION FACILITY 有权
    非均相烷基酯混合物和芳香生产设备的同位素方法

    公开(公告)号:US20110158859A1

    公开(公告)日:2011-06-30

    申请号:US13041930

    申请日:2011-03-07

    申请人: John E. Bauer

    发明人: John E. Bauer

    IPC分类号: B01J8/00

    摘要: One exemplary embodiment can be a process for the isomerization of a non-equilibrium alkylaromatic feed mixture. The process can include contacting the non-equilibrium alkylaromatic feed mixture in a C8 isomerization zone. The C8 isomerization zone may include a first isomerization stage and a second isomerization stage. At the first isomerization stage, at least a portion of the non-equilibrium alkylaromatic feed mixture can be contacted at a first isomerization condition in a liquid phase in the substantial absence of hydrogen to obtain an intermediate stream. At the second isomerization stage, at least part of the intermediate stream and at least a part of a stream rich in at least one naphthene can be contacted at a second isomerization condition to obtain a concentration of at least one alkylaromatic isomer that is higher than a concentration of that at least one alkylaromatic isomer in the non-equilibrium feed mixture.

    摘要翻译: 一个示例性实施方案可以是非平衡烷基芳族进料混合物异构化的方法。 该方法可包括使非平衡烷基芳族进料混合物在C8异构化区中接触。 C8异构化区可以包括第一异构化阶段和第二异构化阶段。 在第一异构化阶段,至少一部分非平衡烷基芳族原料混合物可以在基本上不存在氢气的液相中的第一异构化条件下接触以获得中间体流。 在第二异构化阶段,至少部分中间物流和至少一部分富含至少一个环烷烃的物流可以在第二异构化条件下接触,以获得至少一种烷基芳族异构体的浓度高于 在非平衡进料混合物中该至少一种烷基芳族异构体的浓度。

    Process for isomerizing a non-equilibrium alkylaromatic feed mixture and an aromatic production facility
    19.
    发明授权
    Process for isomerizing a non-equilibrium alkylaromatic feed mixture and an aromatic production facility 有权
    异构化非平衡烷基芳族原料混合物和芳族生产设备的方法

    公开(公告)号:US07932426B2

    公开(公告)日:2011-04-26

    申请号:US11954462

    申请日:2007-12-12

    申请人: John E. Bauer

    发明人: John E. Bauer

    IPC分类号: C07C5/27

    摘要: One exemplary embodiment can be a process for the isomerization of a non-equilibrium alkylaromatic feed mixture. The process can include contacting the non-equilibrium alkylaromatic feed mixture in a C8 isomerization zone. The C8 isomerization zone may include a first isomerization stage and a second isomerization stage. At the first isomerization stage, at least a portion of the non-equilibrium alkylaromatic feed mixture can be contacted at a first isomerization condition in a liquid phase in the substantial absence of hydrogen to obtain an intermediate stream. At the second isomerization stage, at least part of the intermediate stream and at least a part of a stream rich in at least one naphthene can be contacted at a second isomerization condition to obtain a concentration of at least one alkylaromatic isomer that is higher than a concentration of that at least one alkylaromatic isomer in the non-equilibrium alkylaromatic feed mixture.

    摘要翻译: 一个示例性实施方案可以是非平衡烷基芳族进料混合物异构化的方法。 该方法可包括使非平衡烷基芳族进料混合物在C8异构化区中接触。 C8异构化区可以包括第一异构化阶段和第二异构化阶段。 在第一异构化阶段,至少一部分非平衡烷基芳族原料混合物可以在基本上不存在氢气的液相中的第一异构化条件下接触以获得中间体流。 在第二异构化阶段,至少部分中间物流和至少一部分富含至少一个环烷烃的物流可以在第二异构化条件下接触,以获得至少一种烷基芳族异构体的浓度高于 在非平衡烷基芳族进料混合物中该至少一种烷基芳族异构体的浓度。

    Preparation of a porous composite material based on EU-1 zeolite and its implementation in the isomerization of C8 aromatics
    20.
    发明授权
    Preparation of a porous composite material based on EU-1 zeolite and its implementation in the isomerization of C8 aromatics 有权
    基于EU-1沸石的多孔复合材料的制备及其在C8芳烃异构化中的应用

    公开(公告)号:US07923398B2

    公开(公告)日:2011-04-12

    申请号:US12203546

    申请日:2008-09-03

    IPC分类号: B01J29/06

    摘要: A preparation process is described for a porous composite material formed from an amorphous core based on at least one silicon oxide on which crystals of EU-1 zeolite are dispersed, said process comprising 1) the impregnation of a solid comprising a silicon oxide and an aluminum oxide with an aqueous solution comprising a hexamethonium cation, 2) the hydrothermal treatment, implemented in an autoclave of volume V (ml) under steam and at a temperature T comprised between 120 and 220° C., of said solid from stage 1), the quantity of water introduced beforehand into said autoclave being strictly greater than a volumetric quantity equal to V*[23.48*10−10*T3−48*10−8*T2+5*10−5*T−0.002] and less than or equal to 0.25*V, and is such that said solid is not in direct contact with it, 3) the drying then calcination of the solid from stage 2). The preparation a catalyst from said material for its use in the isomerization of C8 aromatics is also described.

    摘要翻译: 对于由非晶核构成的多孔复合材料的制备方法描述为基于其上分散有EU-1沸石晶体的至少一种氧化硅,所述方法包括:1)浸渍含有氧化硅和铝的固体 氧化物与包含六甲基铵阳离子的水溶液,2)水蒸气处理,在蒸气和在120-220℃的温度T下在体积V(ml)的高压釜中实施,所述固体来自阶段1), 预先引入所述高压釜的水的量严格地大于等于V * [23.48 * 10-10 * T3-48 * 10-8 * T2 + 5 * 10-5 * T-0.002]的体积,而小于 或等于0.25 * V,并且使得所述固体不与其直接接触,3)干燥然后从阶段2)煅烧固体。 还描述了从所述材料制备用于C8芳族化合物异构化的催化剂。