Polymerization reaction system
    6.
    发明授权
    Polymerization reaction system 失效
    聚合反应体系

    公开(公告)号:US08586685B2

    公开(公告)日:2013-11-19

    申请号:US13377205

    申请日:2010-07-20

    IPC分类号: C08F2/12 B01J19/24 C08F10/02

    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。

    Discharge system to remove solids from a vessel
    8.
    发明授权
    Discharge system to remove solids from a vessel 有权
    排放系统以从容器中除去固体

    公开(公告)号:US09039333B2

    公开(公告)日:2015-05-26

    申请号:US12444488

    申请日:2007-09-10

    摘要: A discharge system for removing a solid/gas mixture from a fluidized bed pressure vessel is provided. The system includes a fluidized bed pressure vessel, settling vessels, discharge lines, primary discharge valves, vent lines, primary vent valves, crosstie lines, crosstie valves, and primary exit valves wherein the system is absent a transfer tank, and absent a filter element. The method provides for transferring a solid/gas mixture via a discharge line from the pressure vessel to a settling vessel, wherein gas is separated from the mixture, and the gas is transferred to at least one other settling vessel via a crosstie line. After the solids are transferred out of the settling vessel, the empty vessel then receives gas from other settling vessels in the system.

    摘要翻译: 提供了用于从流化床压力容器中除去固体/气体混合物的排放系统。 该系统包括流化床压力容器,沉降容器,排放管线,初级排放阀,通气管线,一次通气阀,交叉管线,交叉阀和主出口阀,其中系统不存在转移罐,并且不存在过滤元件 。 该方法提供将固体/气体混合物经由排放管线从压力容器转移到沉降容器中,其中气体与混合物分离,并且气体通过交叉管线转移至至少一个其它沉降容器。 在将固体从沉降容器中移出后,空容器然后从系统中的其它沉淀容器接收气体。

    Systems using mass flow promoting insert with gas purging and methods thereof
    10.
    发明授权
    Systems using mass flow promoting insert with gas purging and methods thereof 有权
    使用具有气体吹扫的质量流动促进插入物的系统及其方法

    公开(公告)号:US08470082B2

    公开(公告)日:2013-06-25

    申请号:US13128357

    申请日:2009-10-23

    IPC分类号: B01D45/12

    摘要: A system in one embodiment includes a barrier; an inverted cone in the barrier; and a member under the inverted cone and having dimensions that cause solids passing therealong between the member and the barrier to have about a constant velocity profile thereacross. A method for purging a gas from a solid/gas mixture according to one embodiment includes adding solids to a barrier having an inverted cone therein and a member under the inverted cone, wherein the solids passing along the member have about a constant vertical velocity profile thereacross; and injecting a purge gas into the solids from at least one point adjacent the member.

    摘要翻译: 一个实施例中的系统包括屏障; 屏障中的倒锥体; 以及倒锥形下方的部件,其尺寸使得构件和阻挡件之间的固体通过其周围具有大致恒定的速度分布。 根据一个实施方案的从固体/气体混合物中吹扫气体的方法包括将固体添加到具有倒锥体的阻挡物中以及在倒锥体下方的构件,其中沿着构件通过的固体具有大致恒定的垂直速度分布 ; 以及从邻近所述构件的至少一个点将净化气体注入所述固体中。