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    In situ mitigation of coke buildup in porous catalysts with supercritical reaction media
    3.
    发明授权
    In situ mitigation of coke buildup in porous catalysts with supercritical reaction media 失效
    用超临界反应介质原位缓解多孔催化剂中的焦炭积累

    公开(公告)号：US5725756A

    公开(公告)日：1998-03-10

    申请号：US424872

    申请日：1995-04-18

    申请人： Bala Subramaniam ,  Said Saim

    发明人： Bala Subramaniam ,  Said Saim

    IPC分类号： B01J3/00 ,  C07C2/54 ,  C07C5/22 ,  C07C6/12 ,  C10G25/00 ,  C10G9/16

    CPC分类号： C07C6/12 ,  B01J3/008 ,  C07C2/54 ,  C07C5/2206 ,  C07C5/226 ,  C10G25/00 ,  C07C2521/04 ,  C07C2523/42 ,  Y02P20/544 ,  Y10S585/95

    摘要： A method to minimize catalyst deactivation rate and coke laydown, and maximize desired reaction rate in processing of industrially significant reactions under supercritical conditions to generate a reaction mixture stream including formed reaction products and reactants, said contacting at a desired catalyst temperature of about 1-1.2 critical temperature of the resulting reaction mixture and at a pressure between the critical pressure of the reaction mixture and a pressure necessary to establish said reaction mixture fluid density of greater than 0.65 gm/cc.

    摘要翻译： 一种使催化剂失活速率和焦炭沉积最小化的方法，并且在超临界条件下加工工业上显着反应的期望反应速率最大化以产生包含形成的反应产物和反应物的反应混合物流，所述反应混合物流在所需的催化剂温度下为约1-1.2 所得反应混合物的临界温度和反应混合物的临界压力和建立所述反应混合物所需的压力之间的压力流体密度大于0.65gm / cc。

    Isomerization process
    6.
    发明授权
    Isomerization process 失效
    异构化过程

    公开(公告)号：US5227554A

    公开(公告)日：1993-07-13

    申请号：US799797

    申请日：1991-11-29

    申请人： Tai-Sheng Chou

    发明人： Tai-Sheng Chou

    IPC分类号： C07C5/22 ,  C07C9/12

    CPC分类号： C07C9/12 ,  C07C5/226 ,  C07C2523/38

    摘要： A process for the isomerization of C.sub.4 and higher molecular weight hydrocarbons, preferably C.sub.4 to C.sub.6 paraffins with high C.sub.6 cyclics content. A C.sub.5 to C.sub.6 hydrocarbon stream is isomerized in a first isomerization reaction zone and a C.sub.4 hydrocarbon stream is isomerized in a second isomerization reaction zone. At least one or both of the effluent streams from the first and second isomerization zones are conveyed to a gas-liquid separator which separates a hydrogen-rich recycle stream. At least a portion of the hydrogen-rich recycle stream is conveyed to the C.sub.5 to C.sub.6 hydrocarbon feed stream and at least a portion of the hydrogen-rich recycle stream is conveyed to the C.sub.4 hydrocarbon feed stream whereby the hydrogen recycle stream is shared during both the C.sub.4 isomerization reaction and the C.sub.5 to C.sub.6 isomerization reaction. The product stream is conveyed to a shared stabilizer which removes the gaseous and volatile components. The product stream can be fractionated to recover the separate C.sub.4 to C.sub.6 isoparaffins and normal paraffins and naphthenic compounds.

    摘要翻译： C4和更高分子量烃异构化的方法，优选具有高C6环状含量的C4至C6链烷烃。 C5至C6烃流在第一异构化反应区中异构化，C4烃流在第二异构化反应区中异构化。 来自第一和第二异构化区域的至少一种或两种流出物流被输送到分离富氢循环流的气液分离器。 富氢循环流的至少一部分被输送到C5至C6烃进料流，并且至少一部分富氢循环流被输送到C 4烃进料流，由此氢再循环流在两者期​​间共享 C4异构化反应和C5至C6异构化反应。 产物流被输送到共同的稳定剂，其除去气体和挥发性组分。 可以将产物流分馏以回收分开的C4至C6异链烷烃和正链烷烃和环烷烃化合物。

    Solid base
    7.
    发明授权
    Solid base 失效
    坚实基础

    公开(公告)号：US4786626A

    公开(公告)日：1988-11-22

    申请号：US95619

    申请日：1987-09-10

    申请人： Gohfu Suzukamo ,  Masami Fukao ,  Masao Minobe ,  Akemi Sakamoto

    发明人： Gohfu Suzukamo ,  Masami Fukao ,  Masao Minobe ,  Akemi Sakamoto

    IPC分类号： B01J23/04 ,  C07C5/22 ,  C07C5/25 ,  B01J21/04

    CPC分类号： C07C5/226 ,  B01J23/04 ,  C07C5/2556 ,  C07C2521/04 ,  C07C2523/04

    摘要： A solid base with improved properties, such as excellent catalytic performance, is obtainable by reacting alumina with an alkali metal hydroxide in a reaction system at a temperature of 200.degree. to 500.degree. C. to form a reaction product; adding an alkali metal to the reaction system; and reacting the reaction product with the added alkali metal at a temperature of 180.degree. to 350.degree. C., or reacting water-containing alumina with an alkali metal in an amount of 1.01 to 2 times the molar equivalents of water contained in the water-containing alumina wherein a portion of the alkali metal of an amount not more than a molar equivalent of water contained in a reaction system at a temperature in a range between a melting point of the alkali metal and 500.degree. C. to form a reaction product and the reaction product is reacted with the rest of the alkali metal at a temperature of 180.degree. to 350.degree. C.

    Zeolite L
    9.
    发明授权
    Zeolite L 失效
    沸石L

    公开(公告)号：US4593133A

    公开(公告)日：1986-06-03

    申请号：US724673

    申请日：1985-04-18

    申请人： Theodorus M. Wortel

    发明人： Theodorus M. Wortel

    IPC分类号： B01J29/60 ,  B01J29/62 ,  C01B39/32 ,  C07C5/22 ,  C07C5/41 ,  C10G35/095 ,  C07C2/00

    CPC分类号： C10G35/095 ,  B01J29/60 ,  B01J29/62 ,  C01B39/32 ,  C07C5/226 ,  C07C5/415 ,  C07C2529/068

    摘要： A zeolite related to zeolite L and having a characteristic cylindrical morphology may be prepared from a crystallization gel comprising (in mole ratios of oxides):K.sub.2 O/SiO.sub.2 : 0.22-0.36H.sub.2 O/K.sub.2 O: 25-90SiO.sub.2 /Al.sub.2 O.sub.3 : 6-15and preferably with the mole ratio H.sub.2 O/K.sub.2 O+Al.sub.2 O.sub.3 +SiO.sub.2 being at least 8. The cylindrical Zeolite L may be used as a catalyst base in aromatization of acyclic hydrocarbons with high benzene yields being sustained over commercially feasible periods.

    摘要翻译： 与沸石相关并具有特征性圆柱形态的沸石可以由包含（以氧化物的摩尔比）表示的结晶凝胶制备：K 2 O / SiO 2 :0.22-0.36H 2 O / K 2 O：25-90 SiO 2 / Al 2 O 3：6-15和 优选以H 2 O / K 2 O + Al 2 O 3 + SiO 2的摩尔比为至少8.圆柱形沸石L可以用作无环烃的芳构化的催化剂基质，在商业上可行的时期内维持高的苯产率。