Method and Device for Optimising Catalyst Supply to a Polymerisation Reactor
    1.
    发明申请
    Method and Device for Optimising Catalyst Supply to a Polymerisation Reactor 有权
    优化催化剂供应到聚合反应器的方法和装置

    公开(公告)号:US20130011310A1

    公开(公告)日:2013-01-10

    申请号:US13547624

    申请日:2012-07-12

    Applicant: Louis Fouarge

    Inventor: Louis Fouarge

    Abstract: Methods for supplying a catalyst to an ethylene slurry loop polymerization reactor and polymers formed therefrom are described herein. The method includes preparing a catalyst slurry in a preparation vessel. The slurry includes a hydrocarbon diluent liquid that contains a Ziegler-Natta catalyst. The catalyst slurry is supplied to a buffer vessel, withdrawn therefrom and supplied to a slurry loop polymerization reactor in which ethylene is polymerized. A co-catalyst is mixed with the Ziegler Natta catalyst in the slurry prior to supplying the catalyst slurry to the slurry loop polymerization reactor. The transfer of the catalyst slurry from the preparation vessel to the buffer vessel and the withdrawal of catalyst slurry from the buffer vessel are controlled to maintain the level of catalyst slurry in the buffer vessel substantially constant relative to the level of catalyst slurry in the preparation vessel.

    Abstract translation: 本文描述了将催化剂供应到乙烯淤浆环路聚合反应器和由其形成的聚合物的方法。 该方法包括在制备容器中制备催化剂浆料。 浆料包括含有齐格勒 - 纳塔催化剂的烃稀释液。 将催化剂浆液供给到缓冲容器中,从缓冲容器中取出并供给到乙烯聚合的浆液回路聚合反应器中。 在将催化剂浆料供应到浆料回路聚合反应器之前,将助催化剂与浆料中的齐格勒纳塔催化剂混合。 控制催化剂浆料从制备容器向缓冲容器的转移和催化剂浆料从缓冲容器中的排出,以保持缓冲容器中的催化剂浆液水平相对于制备容器中的催化剂浆液的水平基本恒定 。

    Loop Reactor Suitable for Olefin Polymerization with Improved Product Removal Means
    2.
    发明申请
    Loop Reactor Suitable for Olefin Polymerization with Improved Product Removal Means 失效
    循环反应器适用于具有改进的产品去除手段的烯烃聚合

    公开(公告)号:US20110124828A1

    公开(公告)日:2011-05-26

    申请号:US12675005

    申请日:2008-08-29

    Applicant: Louis Fouarge

    Inventor: Louis Fouarge

    Abstract: The present invention relates to a loop reactor suitable for olefin polymerization process comprising: a plurality of interconnected pipes defining a flow path for a polymer slurry, said slurry consisting essentially of an olefin reactant, a polymerization catalyst, liquid diluent and solid olefin polymer particles, means for introducing olefin reactant, polymerization catalyst and diluent into said reactor, a pump suitable for maintaining the polymer slurry in circulation in said reactor, and single settling leg connected to said loop reactor through (a) a take off line extending from said reactor to said settling leg and configured to remove said polymer slurry from said reactor, and (b) a return line extending from said settling leg to said reactor, characterized in that said take off line is radially connected to said single settling leg.

    Abstract translation: 本发明涉及一种适用于烯烃聚合方法的环流反应器,包括:多个互连的管,其限定聚合物浆料的流动路径,所述淤浆基本上由烯烃反应物,聚合催化剂,液体稀释剂和固体烯烃聚合物颗粒组成, 用于将烯烃反应物,聚合催化剂和稀释剂引入所述​​反应器的装置,适合于将所述聚合物浆料保持在所述反应器中循环的泵,以及通过(a)从所述反应器延伸到所述反应器的脱水管连接到所述环管反应器的单个沉降腿 所述沉降腿并且构造成从所述反应器中除去所述聚合物浆料,和(b)从所述沉降腿延伸到所述反应器的返回管线,其特征在于,所述脱出线径向连接到所述单个沉降腿。

    Slurry loop reactors
    5.
    发明申请
    Slurry loop reactors 审中-公开
    泥浆回路反应器

    公开(公告)号:US20090036616A1

    公开(公告)日:2009-02-05

    申请号:US11501181

    申请日:2006-08-04

    Abstract: An apparatus defined as a set of loop reactors suitable for the polymerization process of a monomer, preferably ethylene and optionally an olefin comonomer, comprising for each of said reactors: a plurality of interconnected pipes P defining a flow path for a polymer slurry, said slurry consisting essentially of ethylene, optionally a comonomer, a polymerization catalyst, liquid diluent and solid olefin polymer particles, means for feeding monomer, optionally a co-monomer, diluent and optionally hydrogen in the reactor, means for feeding a polymerization catalyst in the reactor, a pump suitable for maintaining the polymer slurry in circulation in such reactor, one or more settling legs connected to the pipes P of such reactor for settling of polymer slurry, one or more control valves connected to the outlet of such settling legs, and one or more flash lines for discharging settled polymer slurry out of the reactor characterized in that each of said loop reactors comprises a three-or-more-way valve defining three-or-more ends, one end A being positioned at the outlet of said one or more control valves. A method to switch from series to parallel configuration a set of loop reactors. The use of the apparatus to switch polymerization reactors from parallel to series configuration and vice-versa.

    Abstract translation: 定义为适用于单体,优选乙烯和任选的烯烃共聚单体的聚合方法的一组环流反应器的装置,其包含用于每个所述反应器的多个互连管P,其限定聚合物浆料的流动路径,所述浆料 基本上由乙烯,任选的共聚单体,聚合催化剂,液体稀释剂和固体烯烃聚合物颗粒组成,用于在反应器中进料单体,任选的共聚单体,稀释剂和任选的氢的装置,用于在反应器中进料聚合催化剂的装置, 适用于将聚合物浆料保持在该反应器中循环的泵,连接到这种反应器的管道P的一个或多个沉降腿,用于沉淀聚合物浆料,连接到这种沉降腿的出口的一个或多个控制阀,以及一个或多个 用于将沉降的聚合物浆料排出反应器的更多闪光线,其特征在于每个所述环管反应器包括三或-o 限定三个或更多个端部的换向阀,一个端部A定位在所述一个或多个控制阀的出口处。 一种从串联到并联配置一套环流反应器的方法。 使用该装置将聚合反应器从并联转换为串联配置,反之亦然。

    PUMP FOR LOOP REACTOR
    8.
    发明申请
    PUMP FOR LOOP REACTOR 有权
    泵反循环泵

    公开(公告)号:US20130123442A1

    公开(公告)日:2013-05-16

    申请号:US13812756

    申请日:2011-07-29

    Abstract: The present invention relates the use of a pump in a loop reactor for the production of polyethylene, as well as a reactor comprising such pump and methods for producing polyolefin by means of such reactor. The pump according to the invention is characterized in that it is an axial flow impeller circulation pump, wherein the impeller comprises 6 blades and wherein the pump is fixed on a spring supported frame. Use of the pump according to the present invention allows for preparation of homogeneous polyethylene products that meet high quality standards from the complicated ethylene polymerization mixtures while at the same time being produced with low energy consumption.

    Abstract translation: 本发明涉及用于生产聚乙烯的环管反应器中的泵的使用,以及包括这种泵的反应器和通过这种反应器生产聚烯烃的方法。 根据本发明的泵的特征在于它是轴流式叶轮循环泵,其中叶轮包括6个叶片,并且其中泵固定在弹簧支撑的框架上。 根据本发明的泵的使用允许制备符合来自复杂乙烯聚合混合物的高质量标准的均质聚乙烯产品,同时以低能量消耗生产。

    Surface finish of reactor
    10.
    发明申请
    Surface finish of reactor 有权
    反应器的表面光洁度

    公开(公告)号:US20070066770A1

    公开(公告)日:2007-03-22

    申请号:US11498299

    申请日:2006-07-27

    CPC classification number: C08F10/00 C08F110/02 C08F2/002

    Abstract: This invention discloses the use in the production of a polyolefin of a slurry loop reactor wherein all internal parts in contact with the slurry are polished first by a mechanical process to a level of at most 70 RMS roughness value and are subsequently polished by a chemical or electrochemical process, to a final level of at most 40 RMS roughness value.

    Abstract translation: 本发明公开了在制备淤浆环流反应器的聚烯烃中的用途,其中与浆料接触的所有内部部件首先通过机械过程被抛光至至多70RMS粗糙度值的水平,随后通过化学品或 电化学工艺,最终达到40 RMS的粗糙度值。

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