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    HEAT TRANSFER IN A POLYMERIZATION REACTOR
    1.
    发明申请
    HEAT TRANSFER IN A POLYMERIZATION REACTOR 审中-公开
    聚合反应器中的热转移

    公开(公告)号：WO2015200125A1

    公开(公告)日：2015-12-30

    申请号：PCT/US2015/036671

    申请日：2015-06-19

    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP

    Inventor： KUFELD, Scott E ,  MUTCHLER, Joel A ,  HOTTOVY, John D

    IPC: B01J19/24 ,  C08F2/12 ,  C08F2/18

    CPC classification number: B01J19/2435 ,  B01J19/245 ,  B01J2219/00051 ,  B01J2219/00094 ,  C08F2/01 ,  C08F2/12 ,  C08F2/18 ,  G06F17/50 ,  G06F19/701

    Abstract: A process comprises polymerizing an olefin monomer in a loop reactor in the presence of a catalyst and a diluent, and producing a slurry comprising solid particulate olefin polymer and diluent. The Biot number is maintained at or below about 3.0 within the loop reactor during the polymerizing process. The slurry in the loop reactor forms a slurry film having a film coefficient along an inner surface of the reactor wall, and the film coefficient is less than about 500 BTU•hr -1 •ft -2 •F -1 .

    Abstract translation: 一种方法包括在催化剂和稀释剂的存在下在环管反应器中聚合烯烃单体，并产生包含固体颗粒烯烃聚合物和稀释剂的浆料。 聚合过程中环流反应器内的Biot数保持在或低于约3.0。 环流反应器中的浆料形成了沿着反应器壁的内表面具有膜系数的浆膜，膜系数小于约500BT·hr-1·ft-2·F-1。

    PRESSURE MANAGEMENT FOR SLURRY POLYMERIZATION
    4.
    发明申请
    PRESSURE MANAGEMENT FOR SLURRY POLYMERIZATION 审中-公开
    浆料聚合的压力管理

    公开(公告)号：WO2016048986A1

    公开(公告)日：2016-03-31

    申请号：PCT/US2015/051393

    申请日：2015-09-22

    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP

    Inventor： KUFELD, Scott E ,  KREISCHER, Bruce E. ,  HOTTOVY, John D

    IPC: C08F6/00 ,  C08F10/00 ,  B01J19/18 ,  C08J11/02 ,  C08F10/02

    CPC classification number: C08F6/003 ,  B01J19/1837 ,  B01J2219/00162 ,  C08F10/02 ,  C08F2/14 ,  C08F2/01 ,  C08L23/04

    Abstract: Processes and systems for the production for pressure management of a polymerization product flowing from a loop polymerization reactor to a separation vessel in a slurry polymerization system are disclosed herein. For example, a process comprises withdrawing a polymerization product slurry from a loop polymerization reactor, conveying the polymerization product slurry through a first line comprising a continuous take-off valve to yield a mixture comprising a vapor phase, wherein the mixture exits the continuous take-off valve, and conveying the mixture through a second line comprising a flashline heater so that the mixture has a Froude number in a range from about 5 to about 100.

    Abstract translation: 在本文中公开了用于从淤浆聚合系统中的环状聚合反应器流到分离容器的聚合产物的压力管理生产的方法和系统。 例如，一种方法包括从环路聚合反应器中取出聚合产物浆液，将聚合产物浆料输送通过包含连续取料阀的第一管线，以产生包含气相的混合物，其中混合物离开连续取样器， 并且通过包括闪蒸加热器的第二管线输送混合物，使得混合物的弗劳德数在约5至约100的范围内。

    PROCESS FOR FORMING POLYOLEFINS
    7.
    发明申请
    PROCESS FOR FORMING POLYOLEFINS 审中-公开
    形成聚烯烃的方法

    公开(公告)号：WO2015168023A1

    公开(公告)日：2015-11-05

    申请号：PCT/US2015/027799

    申请日：2015-04-27

    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP

    Inventor： KUFELD, Scott E ,  MUTCHLER, Joel A

    IPC: C08F2/00 ,  C08L23/00 ,  C08L23/04 ,  C08L23/10

    CPC classification number: C08F210/02 ,  C08F2/001 ,  C08F2/01 ,  C08F210/16 ,  C08F2500/01 ,  C08F2500/05 ,  C08F2500/08 ,  C08F2500/12 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/10

    Abstract: Processes of forming polyolefins are described herein. One or more specific embodiments of the processes generally include introducing olefin monomer selected from C 2 -C 3 olefins into a first reaction zone under first polymerization conditions to form a first polyolefin; withdrawing a transfer effluent from the first reaction zone, the transfer effluent including first polyolefin and unreacted olefin monomer; introducing the transfer effluent, a comonomer selected from C 4 -C 8 olefins, and additional olefin monomer to a second reaction zone under second polymerization conditions to form a second reactor product; maintaining an essentially constant comonomer:olefin monomer ratio in the second reaction zone; and withdrawing at least a portion of the second reactor product, wherein the second reactor product includes a bimodal polyolefin.

    Abstract translation: 本文描述了形成聚烯烃的方法。 该方法的一个或多个具体实施方案通常包括在第一聚合条件下将选自C 2 -C 3烯烃的烯烃单体引入第一反应区以形成第一聚烯烃; 从第一反应区抽出转移流出物，转移流出物包括第一聚烯烃和未反应的烯烃单体; 在第二聚合条件下将转移流出物，选自C 4 -C 8烯烃的共聚单体和另外的烯烃单体引入第二反应区以形成第二反应器产物; 维持第二反应区中基本上恒定的共聚单体：烯烃单体比例; 以及抽出所述第二反应器产物的至少一部分，其中所述第二反应器产物包括双峰聚烯烃。

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