Heat Transfer in a Polymerization Reactor
    42.
    发明申请
    Heat Transfer in a Polymerization Reactor 有权
    聚合反应器中的热传递

    公开(公告)号:US20150367319A1

    公开(公告)日:2015-12-24

    申请号:US14313370

    申请日:2014-06-24

    摘要: 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.

    摘要翻译: 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具有沿着反应器壁的内表面的膜系数的浆料膜,膜系数小于约500BTU·hr-1·ft-2·°F-1。

    CONTINUOUS TAKE OFF TECHNIQUE AND PRESSURE CONTROL OF POLYMERIZATION REACTORS
    47.
    发明申请
    CONTINUOUS TAKE OFF TECHNIQUE AND PRESSURE CONTROL OF POLYMERIZATION REACTORS 有权
    连续采用聚合反应器的技术和压力控制

    公开(公告)号:US20130183200A1

    公开(公告)日:2013-07-18

    申请号:US13687170

    申请日:2012-11-28

    发明人: John D. Hottovy

    IPC分类号: B01J19/24

    摘要: A polymerization reactor system includes features for operating two or more reactors in series or parallel. The system includes a discharge line coupled to an outlet of a first polymerization reactor, a first conduit connecting the first polymerization reactor to a second polymerization reactor via the discharge line, a second conduit connecting the first polymerization reactor to a flashline apparatus via the discharge line, and a diverter valve coupling the first and second conduits to the discharge line. The diverter valve is configured to selectively open the discharge line to the first conduit and close the discharge line to the second conduit in a first valve state and to selectively open the discharge line to the second conduit and close the discharge line to the first conduit in a second valve state. The diverter valve is capable of switching between the first and second valve states.

    摘要翻译: 聚合反应器系统包括用于串联或并联操作两个或多个反应器的特征。 该系统包括连接到第一聚合反应器的出口的排出管线,经由排放管线将第一聚合反应器连接到第二聚合反应器的第一管道,经由排出管线将第一聚合反应器连接到闪蒸装置的第二管道 以及将第一和第二导管连接到排出管线的分流阀。 分流阀构造成选择性地将排放管线打开到第一管道并且在第一阀状态下将排出管线关闭到第二管道,并且选择性地将排放管线打开到第二管道,并将排出管线关闭到第一管道 第二阀状态。 分流阀能够在第一和第二阀状态之间切换。