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    Methods for operating a polymerization reactor
    5.
    发明授权
    Methods for operating a polymerization reactor 有权
    操作聚合反应器的方法

    公开(公告)号：US08598283B2

    公开(公告)日：2013-12-03

    申请号：US13575872

    申请日：2011-02-17

    申请人： Eric J. Markel ,  Robert O. Hagerty ,  Richard B. Pannell ,  Michael E. Sieloff ,  Jerome Holveck

    发明人： Eric J. Markel ,  Robert O. Hagerty ,  Richard B. Pannell ,  Michael E. Sieloff ,  Jerome Holveck

    IPC分类号： C08F2/00 ,  C08F2/38 ,  C08F4/00 ,  C08F210/00

    CPC分类号： C08F10/00 ,  C08F4/6592 ,  C08F210/16 ,  C08F2/34 ,  C08F2/42 ,  C08F2/00 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18

    摘要： Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization therein. The method can also include stopping recovery of a polymer product from the reactor and stopping introduction of a catalyst feed and a reactor feed to the reactor. The method can also include adjusting a pressure within the reactor from an operating pressure to an idling pressure. The method can also include adjusting a superficial velocity of a cycle fluid through the reactor from an operating superficial velocity to an idling superficial velocity. The method can also include maintaining the reactor in an idled state for a period of time.

    摘要翻译： 提供了在气相聚合反应器中关闭和重新开始聚合的方法。 该方法可以包括以足以阻止其中聚合的量向反应器中引入聚合中和剂。 该方法还可以包括停止从反应器中回收聚合物产物，并停止将催化剂进料和反应器进料引入反应器。 该方法还可以包括将反应器内的压力从操作压力调节到空载压力。 该方法还可以包括调节通过反应器的循环流体的表观速度从操作的表观速度到空转的表观速度。 该方法还可以包括将反应器维持在空闲状态一段时间。

    Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events
    6.
    发明授权
    Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events 失效
    用于在线监测和控制聚合过程和反应器以防止不连续事件的方法

    公开(公告)号：US08433443B2

    公开(公告)日：2013-04-30

    申请号：US12214469

    申请日：2008-06-19

    申请人： Robert O. Hagerty ,  Ian D. Burdett ,  Marc L. DeChellis ,  F. David Hussein ,  Eric J. Markel ,  Michael E. Muhle ,  Richard B. Pannell ,  Daniel P. Zilker

    发明人： Robert O. Hagerty ,  Ian D. Burdett ,  Marc L. DeChellis ,  F. David Hussein ,  Eric J. Markel ,  Michael E. Muhle ,  Richard B. Pannell ,  Daniel P. Zilker

    IPC分类号： G05B21/00

    CPC分类号： C08F10/00 ,  C08F2400/02 ,  C08F2/34 ,  C08F2/002 ,  C08F2/00

    摘要： Generally, a method of monitoring a polymerization reaction in a fluid bed reactor to generate, in on-line fashion, data indicative of the imminent occurrence of a discontinuity event (for example, sheeting) and optionally also control the reaction to prevent the occurrence of the discontinuity event is provided. Typical embodiments include the steps of generating in on-line fashion at least one of bed static data indicative of static charge in the fluidized bed and carryover static data indicative of carryover static; and generating at least one of temperature data (in on-line fashion using at least one monitored reaction parameter) indicative of a first temperature and acoustic emission data indicative of resin stickiness in the reactor, where the first temperature is indicative of at least one of degree of resin stickiness in the reactor and a characteristic of melting behavior of polymer resin in the reactor in the presence of at least one diluent.

    摘要翻译： 通常，监测流化床反应器中的聚合反应的方法，以在线方式产生指示即将发生的不连续事件（例如，片材）的数据，并且还可任选地控制反应以防止发生 提供不连续事件。 典型的实施方案包括以在线方式产生指示流化床中的静电荷的床静态数据中的至少一种并携带指示携带静电的静态数据的步骤; 并且产生指示在反应器中指示树脂粘性的第一温度和声发射数据的温度数据（以在线方式使用至少一个监测的反应参数）中的至少一个，其中第一温度表示以下中的至少一个： 在至少一种稀释剂存在下，反应器中的树脂粘性程度和聚合物树脂在反应器中的熔融行为的特征。

    Methods for Operating a Polymerization Reactor
    9.
    发明申请
    Methods for Operating a Polymerization Reactor 有权
    操作聚合反应器的方法

    公开(公告)号：US20120329962A1

    公开(公告)日：2012-12-27

    申请号：US13575872

    申请日：2011-02-17

    申请人： Eric J. Markel ,  Robert O. Hagerty ,  Richard B. Pannell ,  Michael E. Sieloff ,  Jerome Holveck

    发明人： Eric J. Markel ,  Robert O. Hagerty ,  Richard B. Pannell ,  Michael E. Sieloff ,  Jerome Holveck

    IPC分类号： C08F2/38

    CPC分类号： C08F10/00 ,  C08F4/6592 ,  C08F210/16 ,  C08F2/34 ,  C08F2/42 ,  C08F2/00 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18

    摘要： Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization therein. The method can also include stopping recovery of a polymer product from the reactor and stopping introduction of a catalyst feed and a reactor feed to the reactor. The method can also include adjusting a pressure within the reactor from an operating pressure to an idling pressure. The method can also include adjusting a superficial velocity of a cycle fluid through the reactor from an operating superficial velocity to an idling superficial velocity. The method can also include maintaining the reactor in an idled state for a period of time.

    摘要翻译： 提供了在气相聚合反应器中关闭和重新开始聚合的方法。 该方法可以包括以足以阻止其中聚合的量向反应器中引入聚合中和剂。 该方法还可以包括停止从反应器中回收聚合物产物，并停止将催化剂进料和反应器进料引入反应器。 该方法还可以包括将反应器内的压力从操作压力调节到空载压力。 该方法还可以包括调节通过反应器的循环流体的表观速度从操作的表观速度到空转的表观速度。 该方法还可以包括将反应器维持在空闲状态一段时间。