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    Method and apparatus for monitoring electrical properties of polymerization reactor wall film
    12.
    发明授权
    Method and apparatus for monitoring electrical properties of polymerization reactor wall film 有权
    监测聚合反应器壁膜电性能的方法和装置

    公开(公告)号：US08441250B2

    公开(公告)日：2013-05-14

    申请号：US12780088

    申请日：2010-05-14

    申请人： Eric J. Markel ,  Timothy R. Lynn

    发明人： Eric J. Markel ,  Timothy R. Lynn

    IPC分类号： G01R1/06

    CPC分类号： C08F10/00 ,  B01J8/1809 ,  B01J2208/00601 ,  B01J2219/0245 ,  C08F2400/02 ,  C08F2/34 ,  C08F2/002 ,  C08F2/00

    摘要： Disclosed is a method for using at least one static probe during polymerization in a fluid bed polymerization reactor system to monitor a coating on a surface of the reactor system and a distal portion of each static probe, wherein the coating is exposed to flowing fluid within the reactor system during the reaction. The surface may be a reactor bed wall (exposed to the reactor's fluid bed) and the coating is exposed to flowing, bubbling fluid within the fluid bed during the reaction. The method may include steps of: during the polymerization reaction, operating the static probe to generate a sequence of data values (“high speed data”) indicative of fluid flow variation (e.g., bubbling or turbulence), and determining from the high speed data at least one electrical property of the coating (e.g., of a portion of the coating on the distal portion of the static probe).

    摘要翻译： 公开了一种在流化床聚合反应器系统中在聚合过程中使用至少一个静态探针以监测反应器系统的表面上的涂层和每个静态探针的远端部分的方法，其中涂层暴露于在 反应器系统。 表面可以是反应器床壁（暴露于反应器的流化床），并且涂层在反应期间暴露于流化床内的流动的起泡流体。 该方法可以包括以下步骤：在聚合反应期间，操作静态探针以产生指示流体流动变化（例如，起泡或湍流）的数据值序列（“高速数据”），并从高速数据 涂层的至少一个电性质（例如，静电探针的远端部分上的涂层的一部分）。

    Methods for Operating a Polymerization Reactor
    15.
    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。

    POLYMERIZATION REACTION MONITORING WITH DETERMINATION OF INDUCED CONDENSING AGENT CONCENTRATION FOR PREVENTING DISCONTINUITY EVENTS
    16.
    发明申请
    POLYMERIZATION REACTION MONITORING WITH DETERMINATION OF INDUCED CONDENSING AGENT CONCENTRATION FOR PREVENTING DISCONTINUITY EVENTS 有权
    用于确定诱导性冷凝剂浓度以防止不连续事件的聚合反应监测

    公开(公告)号：US20090234081A1

    公开(公告)日：2009-09-17

    申请号：US12407019

    申请日：2009-03-19

    申请人： Daniel N. Thomas, JR. ,  Eric J. Markel

    发明人： Daniel N. Thomas, JR. ,  Eric J. Markel

    IPC分类号： C08F2/00

    CPC分类号： C08F210/16 ,  C08F2400/02 ,  C08F2/005 ,  C08F2/00 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12

    摘要： A method for monitoring a polymer resin-producing polymerization reaction in a fluid bed reactor, including by determining in on-line fashion a maximum diluent (e.g., ICA) concentration and an optimal diluent (e.g., ICA) concentration in the reactor, whereby performing the reaction with diluent (e.g., ICA) concentration less than the maximum diluent concentration ensures an acceptably low risk that the resin in the reactor in the presence of condensable diluent gas will reach a condition of limiting stickiness. Preferably, the optimal diluent concentration maximizes production rate subject to relevant constraints. The method can also include at least one of the steps of controlling the reaction to achieve a desired production rate by controlling diluent (e.g., ICA) concentration, and controlling the reaction to prevent reactor temperature from reaching a reduced melt reference temperature at least substantially equal to a dry melt reference temperature minus a temperature depression value by which the dry melt reference temperature is depressed by presence of at least one condensable diluent gas with the resin in the reactor.

    摘要翻译： 一种用于监测流化床反应器中聚合物树脂生成聚合反应的方法，包括通过以在线方式确定反应器中的最大稀释剂（例如，ICA）浓度和最佳稀释剂（例如ICA）浓度，从而进行 与稀释剂浓度相比，稀释剂（例如，ICA）浓度的反应确保了在可冷凝的稀释气体存在下反应器中的树脂将达到极限粘性的可接受的低风险。 优选地，最佳稀释剂浓度最大化生产率受制于相关的约束。 该方法还可以包括以下步骤中的至少一个：通过控制稀释剂（例如，ICA）浓度来控制反应以达到所需的生产速率，并控制反应以防止反应器温度达到至少基本相等的降低的熔融参考温度 到干熔体参考温度减去通过在反应器中存在至少一种可冷凝稀释气体与树脂而使干熔体参考温度下降的温度下降值。

    Method of maintaining heat transfer capacity in a polymerization reaction system
    18.
    发明授权
    Method of maintaining heat transfer capacity in a polymerization reaction system 有权
    保持聚合反应体系中传热能力的方法

    公开(公告)号：US07790816B2

    公开(公告)日：2010-09-07

    申请号：US11879673

    申请日：2007-07-18

    申请人： Eric J. Markel ,  Agapios K. Agapiou

    发明人： Eric J. Markel ,  Agapios K. Agapiou

    IPC分类号： C08F2/00 ,  C08F2/34 ,  B01J19/00

    CPC分类号： C08F10/00 ,  C08F2400/02 ,  Y10S526/901 ,  C08F2/00 ,  C08F2/005

    摘要： This invention relates to a process for maintaining heat transfer capacity of a cycle cooler while polymerizing olefin(s) in the presence of catalyst and a carboxylate metal salt by controlling the amount of carboxylate metal salt present in the reaction system. In particular, the invention relates to maintaining a cycle cooler performance parameter substantially constant while polymerizing olefin(s) in the presence of a carboxylate metal salt and a conventional-type transition metal polymerization catalyst compound, or a metallocene-type polymerization catalyst compound. This invention further relates to a process wherein the cycle cooler performance parameter is a heat transfer capacity of the cycle cooler, a pressure drop across the cooler, or a cooler approach temperature of a cycle cooler.

    摘要翻译： 本发明涉及通过控制反应体系中存在的羧酸金属盐的量，在催化剂和羧酸盐金属盐的存在下聚合烯烃时，保持循环冷却器的传热能力的方法。 特别地，本发明涉及在羧酸金属盐和常规型过渡金属聚合催化剂化合物或茂金属型聚合催化剂化合物的存在下聚合烯烃时，保持循环冷却器性能参数基本恒定。 本发明还涉及一种方法，其中循环冷却器性能参数是循环冷却器的传热能力，冷却器上的压降或循环冷却器的冷却器接近温度。

    Polymerization reaction monitoring with determination of induced condensing agent concentration for preventing discontinuity events
    19.
    发明授权
    Polymerization reaction monitoring with determination of induced condensing agent concentration for preventing discontinuity events 有权
    聚合反应监测，测定诱导的缩合剂浓度，以防止不连续事件

    公开(公告)号：US07754830B2

    公开(公告)日：2010-07-13

    申请号：US12407019

    申请日：2009-03-19

    申请人： Daniel N. Thomas, Jr. ,  Eric J. Markel

    发明人： Daniel N. Thomas, Jr. ,  Eric J. Markel

    IPC分类号： C08F2/00

    CPC分类号： C08F210/16 ,  C08F2400/02 ,  C08F2/005 ,  C08F2/00 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12

    摘要： A method for monitoring a polymer resin-producing polymerization reaction in a fluid bed reactor, including by determining in on-line fashion a maximum diluent (e.g., ICA) concentration and an optimal diluent (e.g., ICA) concentration in the reactor, whereby performing the reaction with diluent (e.g., ICA) concentration less than the maximum diluent concentration ensures an acceptably low risk that the resin in the reactor in the presence of condensable diluent gas will reach a condition of limiting stickiness. Preferably, the optimal diluent concentration maximizes production rate subject to relevant constraints. The method can also include at least one of the steps of controlling the reaction to achieve a desired production rate by controlling diluent (e.g., ICA) concentration, and controlling the reaction to prevent reactor temperature from reaching a reduced melt reference temperature at least substantially equal to a dry melt reference temperature minus a temperature depression value by which the dry melt reference temperature is depressed by presence of at least one condensable diluent gas with the resin in the reactor.

    摘要翻译： 一种用于监测流化床反应器中聚合物树脂生成聚合反应的方法，包括通过以在线方式确定反应器中的最大稀释剂（例如，ICA）浓度和最佳稀释剂（例如ICA）浓度，从而进行 与稀释剂浓度相比，稀释剂（例如，ICA）浓度的反应确保了在可冷凝的稀释气体存在下反应器中的树脂将达到极限粘性的可接受的低风险。 优选地，最佳稀释剂浓度最大化生产率受制于相关的约束。 该方法还可以包括以下步骤中的至少一个：通过控制稀释剂（例如，ICA）浓度来控制反应以达到所需的生产速率，并控制反应以防止反应器温度达到至少基本相等的降低的熔融参考温度 到干熔体参考温度减去通过在反应器中存在至少一种可冷凝稀释气体与树脂而使干熔体参考温度下降的温度下降值。

    Methods for on-line determination of degree of resin stickiness using a model for depression of melt initiation temperature
    20.
    发明申请
    Methods for on-line determination of degree of resin stickiness using a model for depression of melt initiation temperature 有权
    使用熔融起始温度抑制模型在线测定树脂粘性度的方法

    公开(公告)号：US20080065360A1

    公开(公告)日：2008-03-13

    申请号：US11827684

    申请日：2007-07-13

    申请人： Richard B. Pannell ,  Robert O. Hagerty ,  Eric J. Markel

    发明人： Richard B. Pannell ,  Robert O. Hagerty ,  Eric J. Markel

    IPC分类号： G06F17/10 ,  C08F2/38

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F2400/02 ,  C08F2/00 ,  C08F2/34 ,  C08F210/08 ,  C08F210/14

    摘要： In some embodiments, a method including the steps of: during a polymerization reaction producing a polymer resin in a fluid bed reactor, measuring reaction parameters including at least reactor temperature, at least one property of the resin, and amount of at least one condensable diluent gas in the reactor; determining from at least one measured resin property using a predetermined correlation, a dry melt initiation temperature value for a dry version of the polymer resin; and during the reaction, using a melt initiation temperature depression model to determine in on-line fashion a reduced melt initiation temperature for the resin (e.g., a temperature at which the resin is expected to begin to melt) in the presence of the at least one condensable diluent gas in the reactor.

    摘要翻译： 在一些实施方案中，一种方法包括以下步骤：在聚合反应期间在流化床反应器中制备聚合物树脂，测量反应参数至少包括反应器温度，树脂的至少一种性质和至少一种可冷凝稀释剂 反应堆中的气体; 使用预定的相关性从至少一种测量的树脂性质确定干燥型聚合物树脂的干熔体起始温度值; 并且在反应期间，使用熔体起始温度下降模型以在线方式确定在至少存在下存在的树脂的降低的熔融起始温度（例如，树脂预期开始熔化的温度） 一个可冷凝的稀释气体在反应器中。