利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

38 条记录 (耗时 0.018 秒)

    Aromatics alkylation process
    1.
    发明授权
    Aromatics alkylation process 失效
    芳烃烷基化方法

    公开(公告)号：US5191135A

    公开(公告)日：1993-03-02

    申请号：US673925

    申请日：1991-03-25

    申请人： Francis G. Dwyer ,  Quang N. Le

    发明人： Francis G. Dwyer ,  Quang N. Le

    IPC分类号： C07C2/66

    CPC分类号： C07C2/66 ,  C07C2529/08 ,  C07C2529/70

    摘要： Long chain alkyl substituted aromatic compounds, particularly alkylated naphthalenes, are produced by the alkylation of aromatics, e.g. naphthalene, with an olefin or other alkylating agent possessing at least 6 carbon atoms, usually 12 to 20 carbon atoms, in the presence of a zeolite alkylation catalyst, preferably a large pore size zeolite such as zeolite Y and in the presence of from about 0.5 to 3.0 weight percent water, preferably 1.0 to 3.0 weight percent. The use of the water co-feed increases the selectivity of the alkylation for the production of long chain mono-alkyl substituted naphthalenes in preference to more highly substituted products and also increases activity and catalyst stability.

    摘要翻译： 长链烷基取代的芳族化合物，特别是烷基化萘，通过芳族化合物的烷基化，例如， 萘与具有至少6个碳原子，通常12-20个碳原子的烯烃或其它烷基化剂在沸石烷基化催化剂，优选大孔沸石如沸石Y的存在下并在约0.5的存在下反应 至3.0重量％的水，优选1.0至3.0重量％。 使用水共进料增加了烷基化用于生产长链单烷基取代萘的选择性，优于更高取代的产物，并且还增加了活性和催化剂的稳定性。

    Highly siliceous porous crystalline material and its use in conversion of oxygenates
    2.
    发明授权
    Highly siliceous porous crystalline material and its use in conversion of oxygenates 失效
    高度硅质多孔结晶材料及其在含氧化合物转化中的应用

    公开(公告)号：US5254767A

    公开(公告)日：1993-10-19

    申请号：US623585

    申请日：1984-06-22

    申请人： Francis G. Dwyer

    发明人： Francis G. Dwyer

    IPC分类号： B01J29/70 ,  C07C2/12 ,  C10G45/64 ,  C07C1/20

    CPC分类号： B01J29/7042 ,  C07C2/12 ,  C10G3/49 ,  C10G3/57 ,  C07C2529/70 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2400/02 ,  Y02P30/20

    摘要： A new zeolite, designated ZSM-22, is disclosed and claimed. The new zeolite has the composition, in the anhydrous state, expressed in terms of mole ratios of oxides as follows:(x)Q.sub.2 O:(y)M.sub.2/n O:(z)L.sub.2 O.sub.3 :100SiO.sub.2wherein Q.sub.2 O is the oxide form of an organic compound containing an element of Group 5-B (as defined in the Table of the Elements--National Bureau of Standards, Fischer Scientific Co. Catalog No. 5-702-10), e.g., N or P, preferably N, containing at least one alkyl or aryl group having at least 2 carbon atoms, M is an alkali or alkaline earth metal having a valence n, e.g., Na, K, Cs or Li and wherein x=0.01-2.0, y=0-2.0, z=0-5, and L=Al. The zeolite is useful in the process of catalytic conversion of alcohols and/or oxygenates to gasoline-grade hydrocarbons.

    摘要翻译： 公开并要求保护名为ZSM-22的新型沸石。 新型沸石的组成为无水状态，以氧化物的摩尔比表示如下：（x）Q2O：（y）M2 / nO：（z）L2O3：100SiO2其中Q2O是有机物的氧化物形式 含有5-B族元素的化合物（如元素 - 国家标准局表，Fischer Scientific Co.目录号5-702-10中所定义），例如N或P，优选N，至少含有 一个具有至少2个碳原子的烷基或芳基，M是价数n的碱金属或碱土金属，例如Na，K，Cs或Li，其中x = 0.01-2.0，y = 0-2.0，z = 0-5，L = Al。 沸石可用于将醇和/或含氧化合物催化转化成汽油级烃的方法。

    Propylation of toluene
    6.
    发明授权
    Propylation of toluene 失效
    甲苯的丙基化

    公开(公告)号：US4049737A

    公开(公告)日：1977-09-20

    申请号：US614731

    申请日：1975-09-18

    申请人： Francis G. Dwyer ,  Donald J. Klocke

    发明人： Francis G. Dwyer ,  Donald J. Klocke

    IPC分类号： C07C2/66 ,  C07C3/52

    CPC分类号： C07C2/66 ,  C07C2521/04 ,  C07C2529/40

    摘要： Propylation of toluene with selective production of cymene is accomplished by vapor phase reaction of toluene and propylene at a temperature between about 400.degree. and about 600.degree. F. in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12.

    摘要翻译： 在选择性生产甲基异丙苯的情况下甲苯的丙基化是通过在包含结晶硅铝酸盐沸石的催化剂存在下，在约400至约600°F之间的温度下，甲苯和丙烯的气相反应完成的，所述沸石具有二氧化硅与氧化铝 至少约12的比例和如下文所定义的约束指数在1至12的近似范围内。

    Synthesis of zeolite ZSM-5
    7.
    发明授权
    Synthesis of zeolite ZSM-5 失效
    沸石ZSM-5的合成

    公开(公告)号：US4526879A

    公开(公告)日：1985-07-02

    申请号：US520746

    申请日：1983-08-05

    申请人： Francis G. Dwyer ,  Pochen Chu

    发明人： Francis G. Dwyer ,  Pochen Chu

    IPC分类号： B01J29/40 ,  C01B39/40 ,  C01B33/28

    CPC分类号： C01B39/40 ,  B01J29/40 ,  B01J2229/26 ,  B01J2229/42 ,  Y10S423/22

    摘要： As synthesized by conventional technique, zeolite ZSM-5 is crystallized in the presence of substantial amount of tetraalkylammonium cations, the alkyl groups of which contain 2 to 5 carbon atoms, such as, for example, tetrapropylammonium. When synthesized in the conventional way, ZSM-5 contains tetraalkylammonium cations as well as a substantial amount of sodium ions. To obtain a more catalytically active form of ZSM-5, the sodium ions must be exchanged to very low levels. By synthesizing zeolite ZSM-5 according to the present method, i.e., in the presence of a combination of an amine and a halide in the presence of a mutual solvent and with a specifically defined reaction mixture composition, ZSM-5 having different organic nitrogen-containing cations but the same crystal structure as conventionally prepared ZSM-5 is obtained. The ZSM-5 prepared in accordance herewith is very low in sodium content as synthesized and has a crystal size of from about 0.05 microns to about 20 microns.

    摘要翻译： 如通过常规技术合成的，沸石ZSM-5在存在大量四烷基铵阳离子（其烷基含有2至5个碳原子的四烷基铵阳离子）存在下结晶，例如四丙基铵。 当以常规方式合成时，ZSM-5含有四烷基铵阳离子以及大量的钠离子。 为了获得更具催化活性的ZSM-5形式，钠离子必须交换到非常低的水平。 通过根据本发明的方法合成沸石ZSM-5，即在相互溶剂存在下，在胺和卤化物的组合存在下，与特定定义的反应混合物组合物，具有不同有机氮气的ZSM-5， 得到与常规制备的ZSM-5相同的晶体结构。 根据本文制备的ZSM-5的钠含量非常低，并且具有约0.05微米至约20微米的晶体尺寸。

    Conversion of synthesis gas to high octane predominantly olefinic naphtha
    10.
    发明授权
    Conversion of synthesis gas to high octane predominantly olefinic naphtha 失效
    合成气转化为高辛烷值主要是烯烃石脑油

    公开(公告)号：US4172843A

    公开(公告)日：1979-10-30

    申请号：US926987

    申请日：1978-07-21

    申请人： Francis G. Dwyer ,  William E. Garwood

    发明人： Francis G. Dwyer ,  William E. Garwood

    IPC分类号： B01J29/40 ,  B01J29/46 ,  C07C1/04

    CPC分类号： B01J29/46 ,  B01J29/40 ,  C07C1/044 ,  B01J2229/26 ,  B01J2229/42 ,  C07C2529/072

    摘要： An improved method is disclosed for converting synthesis gas to hydrocarbon mixtures wherein the syngas is contacted with a special catalyst comprising a crystalline zeolite having a silica-to-alumina ratio of greater than 200 (including zeolites containing essentially no alumina) and an (R.sub.2 O+ M.sub.2 /.sub.n O): SiO.sub.2 ratio of less than 1.1:1 where M is a metal other than a metal of Group IIIA, n is the valence of said metal, and R is an alkyl ammonium radical, said organosilicate being characterized by a specified x-ray diffraction pattern. In a specific embodiment of this invention, synthesis gas is contacted with a catalyst comprising an intimate mixture of said crystalline zeolite catalyst and iron-containing, Fischer-Tropsch catalyst to produce a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90 percent overhead and being a predominantly olefinic product, wherein the structure of the olefins is substantially branched chain with internally-positioned double bonds.

    摘要翻译： 公开了一种用于将合成气转化为烃混合物的改进方法，其中合成气与包含二氧化硅与氧化铝之比大于200的结晶沸石（包括基本上不含氧化铝的沸石）和（R2O + M2 / nO）：SiO 2比小于1.1:1，其中M是除IIIA族金属以外的金属，n是所述金属的化合价，R是烷基铵基团，所述有机硅酸盐的特征在于指定的x- 射线衍射图。 在本发明的具体实施方案中，使合成气与包含所述结晶沸石催化剂和含铁的费 - 托催化剂的紧密混合物的催化剂接触，以产生沸点低于400°F的液体烃产物。 在90％的开销下，并且主要是烯烃产物，其中烯烃的结构基本上是支链的，内部定位的双键。