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    Polymer transfer within a polymerization system
    1.
    发明授权
    Polymer transfer within a polymerization system 有权
    聚合体系内的聚合物转移

    公开(公告)号：US07517947B2

    公开(公告)日：2009-04-14

    申请号：US11467284

    申请日：2006-08-25

    申请人： Robert R. McElvain ,  John D. Hottovy ,  Bryan M. Garner ,  Gregory G. Hendrickson ,  John H. Tait

    发明人： Robert R. McElvain ,  John D. Hottovy ,  Bryan M. Garner ,  Gregory G. Hendrickson ,  John H. Tait

    IPC分类号： C08F6/24 ,  C08F10/06

    CPC分类号： B01J19/2435 ,  B01J8/0015 ,  B01J8/20 ,  B01J2208/00442 ,  B01J2208/00539 ,  B01J2208/00761

    摘要： A method for transferring polymer within a polymerization system, comprising continuously withdrawing the polymer from the reactor and conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber. A method for transferring polymer within a polymerization system comprising conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber and purging interstitial gases from the polymer prior to conveying the polymer from the sash chamber to a purge column. A method for transferring polymer within a polymerization system comprising conveying the polymer from a flash chamber directly to a purge column via a pressure differential between the flash chamber and the purge column.

    摘要翻译： 一种用于在聚合体系内转移聚合物的方法，包括从反应器连续地抽出聚合物并通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室。 一种用于在聚合体系内转移聚合物的方法，包括通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室，并在将聚合物从窗扇室输送到吹扫之前从聚合物中清除间隙气体 柱。 一种用于在聚合体系内转移聚合物的方法，包括通过闪蒸室和净化塔之间的压差将聚合物从闪蒸室直接输送到吹扫塔。

    Polymer transfer within a polymerization system
    2.
    发明授权
    Polymer transfer within a polymerization system 有权
    聚合体系内的聚合物转移

    公开(公告)号：US07109290B2

    公开(公告)日：2006-09-19

    申请号：US11146616

    申请日：2005-06-07

    申请人： Robert R. McElvain ,  John D. Hottovy ,  Bryan M. Garner ,  Gregory G. Hendrikson ,  John H. Tait

    发明人： Robert R. McElvain ,  John D. Hottovy ,  Bryan M. Garner ,  Gregory G. Hendrikson ,  John H. Tait

    IPC分类号： C08F6/00

    CPC分类号： B01J19/2435 ,  B01J8/0015 ,  B01J8/20 ,  B01J2208/00442 ,  B01J2208/00539 ,  B01J2208/00761

    摘要： A method for transferring polymer within a polymerization system, comprising continuously withdrawing the polymer from the reactor and conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber. A method for transferring polymer within a polymerization system comprising conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber and purging interstitial gases from the polymer prior to conveying the polymer from the flash chamber to a purge column. A method for transferring polymer within a polymerization system comprising conveying the polymer from a flash chamber directly to a purge column via a pressure differential between the flash chamber and the purge column.

    摘要翻译： 一种用于在聚合体系内转移聚合物的方法，包括从反应器连续地抽出聚合物并通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室。 一种用于在聚合系统内转移聚合物的方法，包括通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室，并在将聚合物从闪蒸室输送到吹扫之前从聚合物中清除间隙气体 柱。 一种用于在聚合体系内转移聚合物的方法，包括通过闪蒸室和净化塔之间的压差将聚合物从闪蒸室直接输送到吹扫塔。

    Methods and systems for controlling polymer particle size
    8.
    发明授权
    Methods and systems for controlling polymer particle size 有权
    控制聚合物粒径的方法和系统

    公开(公告)号：US08058367B2

    公开(公告)日：2011-11-15

    申请号：US12632490

    申请日：2009-12-07

    申请人： John D. Hottovy ,  Gregory G. Hendrickson

    发明人： John D. Hottovy ,  Gregory G. Hendrickson

    IPC分类号： C08F2/01 ,  C08F110/02 ,  B01J19/00

    CPC分类号： C08F2/002 ,  B01J19/0006 ,  B01J19/002 ,  B01J19/1837 ,  B01J2208/00734 ,  B01J2219/00191 ,  B01J2219/00247 ,  B01J2219/00254 ,  C08F2/12 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F2400/02 ,  C08F2/14 ,  C08F2/00 ,  C08F2500/24

    摘要： Techniques are provided for producing polymer particles of a size just slightly larger than the size of polymer fines. The technique may prevent or limit the occurrence of reactor fouls associated with large polymer particles. The technique also may provide a greater weight percentage of solids in the reactor. The desired polymer particle size may be achieved by employing a catalyst having particles of a size determined based on the expected catalyst productivity. In certain embodiments, the catalyst particle size may be determined based on the expected catalyst productivity, the polymer particle density, the catalyst particle density, and/or the polymer particle size.

    摘要翻译： 提供了用于生产尺寸略大于聚合物细粒尺寸的聚合物颗粒的技术。 该技术可以防止或限制与大聚合物颗粒相关联的反应堆污染物的发生。 该技术还可以在反应器中提供更大的固体重量百分比。 所需的聚合物粒度可以通过使用具有基于预期的催化剂生产率确定的尺寸的颗粒的催化剂来实现。 在某些实施方案中，可以基于预期的催化剂生产率，聚合物颗粒密度，催化剂颗粒密度和/或聚合物粒度来确定催化剂粒度。