Method for fluidized bed polymerization
    5.
    发明授权
    Method for fluidized bed polymerization 失效
    流化床聚合方法

    公开(公告)号:US4588790A

    公开(公告)日:1986-05-13

    申请号:US643884

    申请日:1984-08-24

    摘要: A continuous gas fluidized bed process is disclosed for the production of polymer from monomer wherein a gaseous stream comprising monomer is passed through a fluidized bed in a reaction zone in the presence of catalyst under reactive conditions, withdrawing from the reaction zone polymeric product and a stream comprising unreacted gases and solid particles, cooling the stream and recycling the cooled stream to the reaction zone together with sufficient additional monomer to replace monomer polymerized and withdrawn as polymer product, and wherein at least a part of the recycle stream is cooled to condense a portion thereof and form a liquid-containing mixture wherein the weight ratio of liquid to solid particles is not less than about two to one, and introducing the mixture into the reaction zone wherein the liquid in the mixture is vaporized.

    摘要翻译: 公开了一种用于从单体生产聚合物的连续气体流化床方法,其中在催化剂存在下,在反应条件下,包含单体的气流在反应区中通过流化床,从反应区聚合物产物和流 包括未反应的气体和固体颗粒,冷却流并将冷却的物流与足够的另外的单体一起再循环到反应区域以代替作为聚合物产物聚合和排出的单体,并且其中至少部分循环流被冷却以冷凝部分 并形成液体混合物,其中液体与固体颗粒的重量比不小于约2比1,并将混合物引入混合物中的液体蒸发的反应区中。

    Hydroprocessing catalyst fines as a first-stage catalyst in a two-stage,
close-coupled thermal catalytic hydroconversion process
    9.
    发明授权
    Hydroprocessing catalyst fines as a first-stage catalyst in a two-stage, close-coupled thermal catalytic hydroconversion process 失效
    加氢处理催化剂作为第一级催化剂在两级紧密耦合的热催化加氢转化工艺中

    公开(公告)号:US4761220A

    公开(公告)日:1988-08-02

    申请号:US667503

    申请日:1984-10-31

    IPC分类号: C10G65/12

    CPC分类号: C10G65/12

    摘要: A process for the production of transportation fuels from heavy hydrocarbonaceous feedstock is provided comprising a two-stage, close-coupled process, wherein the first stage comprises a hydrothermal zone into which is introduced a mixture comprising a feedstock and finely ground hydroprocessing catalyst having coke-suppressing and demetalizing activity, and hydrogen; and the second, close-coupled stage comprises a hydrocatalytic zone into which substantially all the effluent from the first stage is directly passed and processed under hydrocracking conditions. The first-stage ground catalyst may also be spent catalyst from which most metals have been removed.

    摘要翻译: 提供了一种从重质烃原料生产运输燃料的方法,包括两阶段紧密耦合的方法,其中第一阶段包括一个水热区,向其中引入含有原料的混合物和精细研磨的加氢处理催化剂, 抑制和脱金属活性,氢; 并且第二紧密耦合阶段包括一个其中基本上所有来自第一阶段的流出物直接通过并在加氢裂化条件下处理的催化剂区。 第一阶段研磨催化剂也可以是已经除去大部分金属的废催化剂。