Method and device for optimising catalyst supply to a polymerisation reactor
    41.
    发明授权
    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:US08501883B2

    公开(公告)日:2013-08-06

    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 The catalyst slurry is supplied to a buffer vessel, withdrawn therefrom and supplied to a slurry loop polymerization reactor in which ethylene is polymerized.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的水平相对于制备容器中催化剂浆液的水平基本上恒定 。

    Method of feeding catalyst
    44.
    发明申请
    Method of feeding catalyst 审中-公开
    进料催化剂的方法

    公开(公告)号:US20130118592A1

    公开(公告)日:2013-05-16

    申请号:US13812720

    申请日:2011-07-29

    Abstract: The present invention relates to a method of continuously feeding catalyst slurry into an olefin polymerization reactor comprising the steps of: a) continuously feeding catalyst slurry into the reactor through a catalyst feeding line and then through a valve connected to the wall of the reactor, wherein said valve comprises a piston device comprising an actuator and a hollow casing, wherein said piston is connected to the actuator and wherein said piston is arranged in the hollow casing; and b) closing said valve by moving the piston through at least part of said valve towards the reactor and at least until the wall of the reactor, upon at least partial blockage of said valve.

    Abstract translation: 本发明涉及一种将催化剂浆料连续供入烯烃聚合反应器的方法,包括以下步骤:a)通过催化剂进料管线将催化剂浆料连续供入反应器中,然后通过连接到反应器壁的阀,其中 所述阀包括活塞装置,其包括致动器和中空壳体,其中所述活塞连接到所述致动器,并且其中所述活塞设置在所述中空壳体中; 以及b)通过使所述活塞通过所述阀的至少一部分朝向所述反应器移动并至少直到所述反应器的壁至少部分地阻塞所述阀来关闭所述阀。

    METHOD FOR MONITORING THE LEVEL OF AN ETHYLENE POLYMERIZATION CATALYST SLURRY
    45.
    发明申请
    METHOD FOR MONITORING THE LEVEL OF AN ETHYLENE POLYMERIZATION CATALYST SLURRY 有权
    用于监测乙烯聚合催化剂浆液水平的方法

    公开(公告)号:US20120242532A1

    公开(公告)日:2012-09-27

    申请号:US13514096

    申请日:2010-12-17

    Abstract: The present invention relates to a method for monitoring the level of an ethylene polymerization catalyst slurry in a mud pot (2), whereby said catalyst slurry is prepared by introducing a solid catalyst and a liquid diluent in said mud pot (2), and whereby through sedimentation an interface (35) is formed between said diluent and the obtained catalyst slurry, characterized in that said interface (35) is monitored with Time Domain Reflectometry.

    Abstract translation: 本发明涉及一种用于监测泥盆(2)中的乙烯聚合催化剂浆液的含量的方法,其中所述催化剂浆料是通过在所述泥罐(2)中引入固体催化剂和液体稀释剂而制备的,由此 通过沉淀,在所述稀释剂和所获得的催化剂浆料之间形成界面(35),其特征在于,所述界面(35)通过时域反射测定来监测。

    TRANSFER PIPE BETWEEN LOOP REACTORS
    49.
    发明申请
    TRANSFER PIPE BETWEEN LOOP REACTORS 有权
    环流反应器之间的转移管

    公开(公告)号:US20100008829A1

    公开(公告)日:2010-01-14

    申请号:US12280616

    申请日:2007-02-21

    Applicant: Louis Fouarge

    Inventor: Louis Fouarge

    Abstract: The present invention discloses a transfer system between the first and second reactors in a double loop reactor that is equipped to reduce clogging in the transfer lines by providing a regulation mechanism arranged to insure equivalent flushing in each transfer line.

    Abstract translation: 本发明公开了一种双回路反应器中的第一和第二反应器之间的转移系统,该双回路反应器装备有通过设置用于确保每个输送管线中的等效冲洗的调节机构来减少输送管线中的堵塞。

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