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35 条记录 (耗时 0.035 秒)

    Additive for Polyolefin Polymerization Processes
    32.
    发明申请
    Additive for Polyolefin Polymerization Processes 审中-公开
    聚烯烃聚合方法的添加剂

    公开(公告)号：US20110256632A1

    公开(公告)日：2011-10-20

    申请号：US13139113

    申请日：2010-01-07

    申请人： F. David Hussein ,  Michael E. Muhle

    发明人： F. David Hussein ,  Michael E. Muhle

    IPC分类号： G01N25/48 ,  C08F4/78 ,  C08F2/00

    CPC分类号： C08F10/02 ,  C08F210/16 ,  C08F2/005 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/05

    摘要： A polymerization process is disclosed, including: polymerizing at least one olefin to form an olefin based polymer in a polymerization reactor; and feeding at least one ethyleneimine additive to the polymerization reactor. The ethyleneimine additive may comprise a polyethyleneimine, an ethyleneimine copolymer, or a mixture thereof. The process may further comprise monitoring static in the polymerization reactor; maintaining the static at a desired level by use of at least one ethyleneimine additive, the at least one ethyleneimine additive present in said reactor in the range from about 0.1 to about 50 ppm, based on the weight of polymer produced by said combining.

    摘要翻译： 公开了聚合方法，包括：在聚合反应器中聚合至少一种烯烃以形成基于烯烃的聚合物; 并向聚合反应器中加入至少一种乙烯亚胺添加剂。 乙烯亚胺添加剂可以包含聚乙烯亚胺，乙烯亚胺共聚物或其混合物。 该方法还可以包括在聚合反应器中监测静态; 基于由所述组合产生的聚合物的重量，通过使用至少一种乙烯亚胺添加剂将所述静态维持在所需水平，所述反应器中存在的至少一种乙烯亚胺添加剂的范围为约0.1至约50ppm。

    Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events
    33.
    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。

    Polymerization Reaction System
    34.
    发明申请
    Polymerization Reaction System 失效
    聚合反应体系

    公开(公告)号：US20120136127A1

    公开(公告)日：2012-05-31

    申请号：US13377205

    申请日：2010-07-20

    申请人： F. David Hussein ,  Michael E. Muhle ,  Ping Cai ,  Mark W. Blood

    发明人： F. David Hussein ,  Michael E. Muhle ,  Ping Cai ,  Mark W. Blood

    IPC分类号： C08F2/01 ,  B01J19/00

    CPC分类号： C08F10/02 ,  B01J8/22 ,  B01J2208/00256 ,  B01J2208/00274 ,  B01J2208/00283 ,  B01J2208/00734 ,  B01J2219/0025 ,  B01J2219/00254 ,  C08F110/02 ,  C08F210/16 ,  C08F2/34 ,  C08F2/01 ,  C08F2/14 ,  C08F2500/24 ,  C08F210/14

    摘要： A process for the polymerization of olefins is disclosed. The process may include: feeding a catalyst, a liquid diluent, and an olefin to a polymerization vessel having, from a polymerization vessel bottom to a polymerization vessel top, a vapor introduction zone, a three-phase reaction zone and a vapor disengagement zone; contacting the catalyst and olefin under conditions of temperature and pressure in the presence of the liquid diluent as a continuous phase in the three-phase reaction zone to form a solid phase polyolefin; withdrawing a gas phase composition from an outlet in fluid communication with the vapor disengagement zone; circulating the gas phase composition through a gas circulation loop to an inlet in fluid communication with the vapor distribution zone at a rate sufficient to agitate the solid and liquid phases within the three-phase reaction zone; and withdrawing a reaction mixture comprising polyolefin and diluents from the three-phase reaction zone.

    摘要翻译： 公开了一种烯烃聚合方法。 该方法可以包括：将催化剂，液体稀释剂和烯烃进料到聚合容器中，所述聚合容器具有从聚合容器底部到聚合容器顶部的蒸气引入区，三相反应区和蒸气分离区; 在温度和压力条件下，在作为连续相的液体稀释剂存在下在三相反应区中使催化剂和烯烃接触以形成固相聚烯烃; 从与蒸气分离区流体连通的出口抽出气相组合物; 将气相组合物通过气体循环回路循环到与蒸汽分配区流体连通的入口，其速率足以搅拌三相反应区内的固相和液相; 并从三相反应区取出包含聚烯烃和稀释剂的反应混合物。