Method and apparatus for taking sample
    11.
    发明授权
    Method and apparatus for taking sample 失效
    取样的方法和装置

    公开(公告)号:US6037184A

    公开(公告)日:2000-03-14

    申请号:US952371

    申请日:1997-11-10

    Abstract: A method and apparatus for taking a sample from a flowing suspension formed by polymer particles and hydrocarbon diluent in a olefin polymerization process including at least one filter situated at a plane of an inside surface of a transfer conduit between reactors. Each filter includes perforations or pores having a size to prevent substantially any of the catalyst used in the polymerization process from passing through the filter, e.g., smaller than the smallest particle size of a catalyst used in the polymerization process. The pore or perforation size of each filter is preferably 0.1-10 .mu.m, preferably between 0.2-1 .mu.m. A pressure difference permits at least partial vaporization of the sample as it passes through the filter.

    Abstract translation: PCT No.PCT / FI96 / 00270 Sec。 371日期:1997年11月10日 102(e)日期1997年11月10日PCT提交1996年5月13日PCT公布。 WO96 / 35936 PCT公开号 日期:1996年11月14日一种用于在烯烃聚合方法中由聚合物颗粒和烃稀释剂形成的流动悬浮液中取样品的方法和装置,该方法和装置包括位于反应器之间的输送导管内表面的至少一个过滤器。 每个过滤器包括具有防止基本上任何在聚合过程中使用的催化剂通过过滤器的尺寸的孔或孔,例如小于在聚合过程中使用的催化剂的最小颗粒尺寸。 每个过滤器的孔或穿孔尺寸优选为0.1-10μm,优选在0.2-1μm之间。 压力差允许样品在通过过滤器时至少部分蒸发。

    High throughput reactor assembly for polymerization of olefins
    12.
    发明授权
    High throughput reactor assembly for polymerization of olefins 有权
    用于烯烃聚合的高通量反应器组件

    公开(公告)号:US09192903B2

    公开(公告)日:2015-11-24

    申请号:US14002426

    申请日:2012-03-02

    Abstract: Reactor assembly for the production of polymers including a fluidized bed reactor (1) comprising a bottom zone (5), a middle zone (6) and an upper zone (7), an inlet (8) for the fluidization gas located in the bottom zone (5), an outlet (9) for the fluidization gas located in the upper zone (7); the outlet (9) for the fluidization gas being coupled with the fluidized bed reactor (1) via inlet (8) via a gas circulation line; means for separation of solids from gas (2) being connected to said gas circulation line; the equivalent cross-sectional diameter of the upper zone (7) being monotonically decreasing with respect to the flow direction of the fluidization gas through the fluidized bed reactor; the middle zone (6) having an essentially constant equivalent cross-sectional diameter with respect to the flow direction of the fluidization gas through the fluidized bed reactor; the equivalent cross-sectional diameter of the bottom zone (5) being monotonically increasing with respect to the flow direction of the fluidization gas through the fluidized bed reactor; characterized in that the ratio of the height of the fluidized bed reactor to the equivalent cross-sectional diameter of the middle zone of the fluidized bed reactor is from 2 to 10; and whereby said upper zone (7) is directly connected to said middle zone (6).

    Abstract translation: 用于生产包括流化床反应器(1)的聚合物的反应器组件包括底部区域(5),中间区域(6)和上部区域(7),用于位于底部的流化气体的入口(8) 区域(5),用于位于上部区域(7)中的流化气体的出口(9); 用于流化气体的出口(9)通过气体循环管线通过入口(8)与流化床反应器(1)相连; 用于从与所述气体循环管线连接的气体(2)分离固体的装置; 上部区域(7)的等效横截面直径相对于通过流化床反应器的流化气体的流动方向单调减小; 所述中间区域(6)具有相对于通过所述流化床反应器的流化气体的流动方向具有基本恒定的等效横截面直径; 底部区域(5)的等效横截面直径相对于通过流化床反应器的流化气体的流动方向单调增加; 其特征在于,流化床反应器的高度与流化床反应器的中间区域的等效横截面直径之比为2至10; 并且由此所述上部区域(7)直接连接到所述中间区域(6)。

    PROCESS FOR PRODUCING POLYOLEFINS
    14.
    发明申请
    PROCESS FOR PRODUCING POLYOLEFINS 有权
    生产聚烯烃的方法

    公开(公告)号:US20120178887A1

    公开(公告)日:2012-07-12

    申请号:US13388490

    申请日:2010-11-03

    Abstract: The present invention deals with a process of producing a polymer of at least one olefin in two consecutive reactors in gas phase in the presence of an olefin polymerisation catalyst where an olefin is polymerised in a first polymerization reactor in the presence of an olefin polymerisation catalyst and a first reaction gas mixture to form a fluidized bed comprising an olefin polymer and said first reaction gas mixture. The first reaction gas mixture together with the olefin polymer is continuously or intermittently withdrawn from the first polymerisation reactor and directed into a separation vessel so that a bed of polymer is formed in said separation vessel. A portion of said first reaction gas mixture is withdrawn from said separation vessel and returned into the first polymerization reactor to a point where the pressure is lower than in the separation vessel. The olefin polymer is withdrawn from said separation vessel to form a second product stream and the second product stream is directed into a second polymerization reactor. A second gas may be introduced into the bottom part of the separation vessel to avoid the carry-over of the reactants from the first polymerisation stage into the second polymerisation stage.

    Abstract translation: 本发明涉及一种在烯烃聚合催化剂存在下,在两相连续反应器中制备至少一种烯烃聚合物的方法,其中烯烃在烯烃聚合催化剂存在下在第一聚合反应器中聚合, 第一反应气体混合物以形成包含烯烃聚合物和所述第一反应气体混合物的流化床。 将第一反应气体混合物与烯烃聚合物一起连续或间歇地从第一聚合反应器中取出并引导到分离容器中,使得在所述分离容器中形成聚合物床。 将所述第一反应气体混合物的一部分从所述分离容器中取出并返回到第一聚合反应器中至压力低于分离容器的点。 将烯烃聚合物从所述分离容器中排出以形成第二产物流,将第二产物流引入第二聚合反应器。 可以将第二气体引入分离容器的底部,以避免反应物从第一聚合阶段进入第二聚合阶段。

    Method and equipment for taking a sample
    15.
    发明授权
    Method and equipment for taking a sample 失效
    取样的方法和设备

    公开(公告)号:US5602348A

    公开(公告)日:1997-02-11

    申请号:US553363

    申请日:1996-02-12

    Abstract: The invention concerns a method and an equipment for taking a sample in slurry polymerization. The sample is taken directly from the liquid phase of the reactor (15) through an in-line filter (40). The slurry flow is maintained in the in-line filter (40) at a sufficiently hight level to prevent immobilization of polymer or catalyst particles on the filter face of the in-line filte (40).

    Abstract translation: PCT No.PCT / FI94 / 00182 Sec。 371日期:1996年2月12日 102(e)日期1996年2月12日PCT提交1994年5月10日PCT公布。 出版物WO94 / 27134 日期1994年11月24日本发明涉及一种用于在浆液聚合中取样的方法和设备。 样品通过直列式过滤器(40)从反应器(15)的液相中直接取出。 浆料流以足够高的水平保持在在线过滤器(40)中,以防止聚合物或催化剂颗粒固定在直线过滤嘴(40)的过滤面上。

    Method for the dosage of a fluidized polymerization catalyst into a
polymerization reactor
    16.
    发明授权
    Method for the dosage of a fluidized polymerization catalyst into a polymerization reactor 失效
    流化聚合催化剂进入聚合反应器的方法

    公开(公告)号:US5385992A

    公开(公告)日:1995-01-31

    申请号:US119150

    申请日:1993-10-26

    CPC classification number: B01J8/003 B01J8/002 B01J8/0035 F04B7/06

    Abstract: A method is provided for controlling the dosage of a fluidized polymerizing catalyst into a polymerization reactor. The method comprises mixing a solid polymerization catalyst with wax and feeding the flowing catalyst-wax mixture through a pipe to the dosage pump. The inlet opening of the cylinder of the dosage pump is opened to draw catalyst-wax mixture through the inlet opening by means of the back motion of the piston. The inlet opening is then closed and the outlet opening is opened. Flowing catalyst-wax mixture is then pressed from the cylinder through the outlet opening by means of the back motion of the piston. The outlet opening is then closed. Opening and closing of the inlet and outlet openings is carried out by rotating an intermediate pipe arranged between the cylinder and piston so that a transmission opening in the intermediate pipe moves upon either the inlet or outlet opening. The intermediate pipe surface always covers at least one of the inlet or outlet openings.

    Abstract translation: PCT No.PCT / FI92 / 00080 Sec。 371日期:1993年10月26日 102(e)日期1993年10月26日PCT 1991年3月20日PCT公布。 第WO92 / 16747号公报 日期为1992年10月1日。提供了一种控制流化聚合催化剂进入聚合反应器的剂量的方法。 该方法包括将固体聚合催化剂与蜡混合,并将流动的催化剂 - 蜡混合物通过管道送入剂量泵。 剂量泵的气缸的入口打开,通过活塞的反向运动通过进口开启催化剂 - 蜡混合物。 然后关闭入口,并打开出口。 然后通过活塞的反向运动,将流动的催化剂 - 蜡混合物从汽缸压出出口。 然后关闭出口。 通过旋转布置在气缸和活塞之间的中间管来进行入口和出口的打开和关闭,使得中间管中的传动开口在入口或出口开口上移动。 中间管表面总是覆盖入口或出口中的至少一个。

    Method and apparatus for discharging polymerization reactors
    18.
    发明授权
    Method and apparatus for discharging polymerization reactors 有权
    用于排放聚合反应器的方法和装置

    公开(公告)号:US07655192B2

    公开(公告)日:2010-02-02

    申请号:US11075921

    申请日:2005-03-10

    Abstract: A method and an apparatus of discharging polymer from a continuously operated gas phase reactor, wherein at least one monomer is polymerized in a bed containing active catalyst formed by catalyst and polymer particles suspended in a fluid, the bed defining a fluidized bed level in said reactor. The invention includes continuously withdrawing polymer powder from the reactor; and adjusting the discharge rate of the polymer powder so as to maintain a constant bed level during polymerization. By means of the invention the discharge of the polymer can be made truly continuous without any disturbance of the polymerization. The rate of withdrawn polymer can be flexibly adjusted depending on the progress of the polymerization and it can also easily be scaled up if the capacity of the reactor is increased.

    Abstract translation: 一种从连续操作的气相反应器中排出聚合物的方法和装置,其中至少一种单体在包含由催化剂形成的活性催化剂和悬浮在流体中的聚合物颗粒的床中聚合,所述床在所述反应器中限定流化床水平 。 本发明包括从反应器中连续取出聚合物粉末; 并调节聚合物粉末的排出速率,以便在聚合期间保持恒定的床层。 通过本发明,可以使聚合物的排放真正连续,而不会导致聚合紊乱。 退出的聚合物的速率可以根据聚合的进展而灵活地调节,并且如果反应器的容量增加,也可以容易地放大。

    PROCESS FOR POLYMERIZING OLEFINS IN THE PRESENCE OF AN OLEFIN POLYMERIZATION CATALYST
    19.
    发明申请
    PROCESS FOR POLYMERIZING OLEFINS IN THE PRESENCE OF AN OLEFIN POLYMERIZATION CATALYST 有权
    在烯烃聚合催化剂存在下聚合烯烃的方法

    公开(公告)号:US20090137753A1

    公开(公告)日:2009-05-28

    申请号:US12065101

    申请日:2006-08-08

    Abstract: The present invention relates to a process for the preparation of multimodal ethylene homo- or copolymers in at least two stages, the process comprising preparation of a first ethylene homo- or copolymer fraction in a loop reactor in slurry phase, preparation of a second ethylene homo- or copolymer fraction in a gas phase reactor, by using a catalyst not containing an inorganic oxide support, and operating the gas phase reactor in such conditions that at least part of the gas is recycled, and that at least a part of the recycled gas is condensed and the (partially) condensed gas is re-introduced into the gas phase reactor.

    Abstract translation: 本发明涉及在至少两个阶段制备多峰乙烯均聚物或共聚物的方法,该方法包括在淤浆相中的环管反应器中制备第一乙烯均聚物或共聚物部分,制备第二乙烯均聚物 - 或气相反应器中的共聚物部分,通过使用不含无机氧化物载体的催化剂,并且在气态反应器中操作至少部分气体被再循环的条件,并且至少部分循环气体 被冷凝,并将(部分)冷凝的气体重新引入气相反应器。

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