Polyolefin production using high olefin concentration
    6.
    发明授权
    Polyolefin production using high olefin concentration 失效
    聚烯烃生产使用高烯烃浓度

    公开(公告)号:US07902306B2

    公开(公告)日:2011-03-08

    申请号:US12605614

    申请日:2009-10-26

    申请人: Giacomo Conti

    发明人: Giacomo Conti

    IPC分类号: C08F2/00 G05D16/00 G01N7/00

    摘要: Methods for polymerization of an olefin monomer and polymers formed therefrom are described herein. The methods generally include introducing an olefin monomer and a diluent carrier liquid into a polymerization reactor, supplying at least one polymerization catalyst system to said polymerization reactor, circulating said diluent liquid in said olefin monomer within said reactor while polymerizing said olefin monomer in the presence of said catalyst system to produce a slurry of polymer fluff particle in said diluent carrier liquid, recovering polymer particles from said polymerization reactor, initiating a localized pressure drop in said reactor to produce a pressure wave in which the pressure varies with time, measuring said pressure wave and characterizing said pressure wave as either a hydraulic pressure curve or a non-hydraulic pressure curve, which is characteristic of a gas being present in said slurry and in response to the characteristic of said pressure curve as being a non-hydraulic pressure curve, reducing the olefin monomer concentration in said reactor.

    摘要翻译: 本文描述了烯烃单体和由其形成的聚合物的聚合方法。 所述方法通常包括将烯烃单体和稀释剂载体液体引入聚合反应器,向所述聚合反应器供应至少一种聚合催化剂体系,在所述反应器内循环所述烯烃单体中的稀释液体,同时在所述烯烃单体存在下聚合所述烯烃单体 所述催化剂体系在所述稀释剂载体液体中产生聚合物绒毛颗粒的浆料,从所述聚合反应器中回收聚合物颗粒,在所述反应器中引发局部压降,产生压力随时间变化的压力波,测量所述压力波 并且将所述压力波表征为作为存在于所述浆料中的气体的特征的液压曲线或非液压曲线,并且响应于作为非液压压力曲线的所述压力曲线的特性,减小 所述反应器中的烯烃单体浓度。

    Polyolefin production using high olefin concentration
    7.
    发明申请
    Polyolefin production using high olefin concentration 审中-公开
    聚烯烃生产使用高烯烃浓度

    公开(公告)号:US20070060723A1

    公开(公告)日:2007-03-15

    申请号:US11499042

    申请日:2006-08-01

    申请人: Giacomo Conti

    发明人: Giacomo Conti

    IPC分类号: C08F2/00

    摘要: Provided is an apparatus for polymerising an olefin monomer, which apparatus comprises the following: (a) a reactor for polymerising the olefin monomer; (b) a means for measuring the presence of gas in the reactor; and (c) a means for controlling the concentration of olefin monomer in the reactor; wherein, the means for measuring the presence of gas in the reactor is a means capable of measuring a pressure curve in the reactor to determine whether the pressure curve is characteristic of a hydraulic system or a non-hydraulic system.

    摘要翻译: 提供了一种用于聚合烯烃单体的装置,该装置包括以下步骤:(a)用于聚合烯烃单体的反应器; (b)测量反应器中气体的存在的装置; 和(c)控制反应器中烯烃单体浓度的方法; 其中,用于测量反应器中气体存在的装置是能够测量反应器中的压力曲线以确定压力曲线是液压系统还是非液压系统的特征的装置。

    Polyolefin Production Using High Olefin Concentration
    8.
    发明申请
    Polyolefin Production Using High Olefin Concentration 失效
    使用高烯烃浓度的聚烯烃生产

    公开(公告)号:US20100144982A1

    公开(公告)日:2010-06-10

    申请号:US12605614

    申请日:2009-10-26

    申请人: Giacomo Conti

    发明人: Giacomo Conti

    IPC分类号: C08F2/04

    摘要: Methods for polymerization of an olefin monomer and polymers formed therefrom are described herein. The methods generally include introducing an olefin monomer and a diluent carrier liquid into a polymerization reactor, supplying at least one polymerization catalyst system to said polymerization reactor circulating said diluent liquid in said olefin monomer within said reactor while polymerizing said olefin monomer in the presence of said catalyst system to produce a slurry of polymer fluff particle in said diluent carrier liquid, recovering polymer particles from said polymerization reactor, initiating a localized pressure drop in said reactor to produce a pressure wave in which the pressure varies with time, measuring said pressure wave and characterizing said pressure wave as either a hydraulic pressure curve or a non-hydraulic pressure curve which is characteristic of a gas being present in said slurry and in response to the characteristic of said pressure curve as being a non-hydraulic pressure curve reducing the olefin monomer concentration in said reactor.

    摘要翻译: 本文描述了烯烃单体和由其形成的聚合物的聚合方法。 所述方法通常包括将烯烃单体和稀释剂载体液体引入聚合反应器中,在所述聚合反应器中向所述聚合反应器供应所述聚合反应器,所述聚合反应器在所述反应器中循环所述烯烃单体中的稀释液体,同时在所述烯烃单体存在下聚合所述烯烃单体 催化剂体系以在所述稀释剂载体液体中产生聚合物绒毛颗粒的浆料,从所述聚合反应器回收聚合物颗粒,引发所述反应器中的局部压降,产生压力随时间变化的压力波,测量所述压力波, 将所述压力波表征为作为存在于所述浆料中的气体的特征的液压曲线或非液压曲线,并且响应于所述压力曲线的特性作为减少烯烃单体的非液压压力曲线 浓度在所述反应器中。