Process for operating a polymer powder degasser vessel

    公开(公告)号:US10941222B2

    公开(公告)日:2021-03-09

    申请号:US16461540

    申请日:2017-11-30

    申请人: INEOS EUROPE AG

    摘要: The present invention relates to a process for operating a polymer powder degasser vessel, and in particular provides a process for operating a polymer powder degasser vessel which vessel comprises a silo comprising a main vertical cylinder and a hopper at the bottom of the cylinder, there being a polymer powder withdrawal pipe connected to the hopper by which polymer powder is withdrawn from the hopper, and wherein the silo contains a polymer powder which occupies less than 45% of the volume of the silo and the polymer powder passes through the polymer powder degasser vessel in a mass flow manner, further wherein at least one of the following is applied: i) polymer powder is withdrawn from the hopper and recirculated to the silo, wherein the recirculation rate of the polymer powder is at least 30 percent per hour of the polymer powder present in the silo, and ii) a purge gas is provided to the silo via the polymer powder withdrawal pipe or via an inlet located on the hopper at a vertical height which is less than half of height of the hopper from its bottom end.

    Copolymers and films thereof
    4.
    发明授权

    公开(公告)号:US10676550B2

    公开(公告)日:2020-06-09

    申请号:US15742552

    申请日:2016-07-07

    申请人: INEOS EUROPE AG

    摘要: Novel copolymers having a density (D) in the range 0.895-0.910 g/cm3, a melt index MI2 (2.16 kg, 190° C.) in the range of 0.01-6 g/10 min, a Compositional Distribution Branch Index (CDBI) in the range 55-85%, and a sealing initiation temperature (SIT) and density (D) satisfying the relationship SIT≤(A×D)−B wherein A is 800° C.×cm3/g and B is 650° C., wherein the SIT (° C.) is determined on a 70 μm film at 0.5N/15 mm and D Is in units of g/cm3 are disclosed. The copolymers may be suitably prepared by use of metallocene catalyst systems and may be used in film applications, in particular as sealing layers for packaging applications.

    Process for catalyst activation
    7.
    发明授权
    Process for catalyst activation 有权
    催化剂活化方法

    公开(公告)号:US09440211B2

    公开(公告)日:2016-09-13

    申请号:US14919853

    申请日:2015-10-22

    申请人: INEOS EUROPE AG

    摘要: The invention relates generally to a catalyst activator, and in particular to a catalyst activator for heat conditioning a catalyst, comprising: a) a vessel for containing a catalyst charge having an internal diameter of at least 1.2 meters and/or an internal volume of at least 5 m3; b) a fluidization grid plate disposed in said vessel, said fluidization grid plate and having an upper major surface and a lower major surface; c) an array of generally conical depressions in said upper major surface that overlap by less than 17%; and d) an array of holes perforating said fluidization grid plate, said holes extending from at least some of said generally conical depressions through said lower surface.

    摘要翻译: 本发明一般涉及一种催化剂活化剂,特别涉及一种用于加热调节催化剂的催化剂活化剂,该催化剂活化剂包括:a)用于容纳内径至少为1.2米和/或内部体积为 至少5立方米; b)设置在所述容器中的流化栅格板,所述流化栅格板具有上主表面和下主表面; c)所述上主表面中的大致锥形凹陷的阵列重叠小于17%; 以及d)穿孔所述流化栅格板的孔阵列,所述孔从至少一些所述大致圆锥形的凹陷穿过所述下表面延伸。

    Slurry phase polymerisation process
    8.
    发明授权
    Slurry phase polymerisation process 有权
    浆相聚合工艺

    公开(公告)号:US09279023B2

    公开(公告)日:2016-03-08

    申请号:US14127289

    申请日:2012-06-21

    摘要: Process for polymerizing ethylene in a reactor system containing one or more reactors in series, having a characteristic such that the average polymerization productivity [kgPE/kgcata] per unit ethylene per hour a1 during operation at any first residence time r1 is less than 1.7 (a2r2−a1r1)/(r2−r1), where a2 is the average polymerization productivity [kgPE/kgcata] per unit ethylene per hour during operation at any second residence time r2 where r2>r1, a2 and r2 being measured either in the same reactor in the case of a single reactor polymerization, or in a reactor subsequent to the reactor in which a1 and r1 are measured in the case where the polymerization takes place in more than one reactor. The specific yield of the reactor system is greater than 0.3 tonnes/m3. Operating the system under the above conditions results in improved productivity/unit ethylene.

    摘要翻译: 在含有一个或多个串联反应器的反应器系统中聚合乙烯的方法,具有使得在任何第一停留时间r1下操作期间每单位乙烯/小时a1的平均聚合生产率[kgPE / kgcata]小于1.7(a2r2 -a1r1)/(r2-r1),其中a2是在任何第二停留时间r2下操作期间每单位乙烯的平均聚合生产率[kgPE / kgcata],其中r2> r1,a2和r2在相同的反应器 在单反应器聚合的情况下,或在反应器中的反应器中,其中在多于一个反应器中进行聚合的情况下测量a1和r1。 反应堆系统的具体产量大于0.3吨/立方米。 在上述条件下操作系统可提高生产率/单位乙烯。

    Process for introduction of liquid feeds to a polymerization process
    9.
    发明授权
    Process for introduction of liquid feeds to a polymerization process 有权
    将液体进料引入聚合过程的方法

    公开(公告)号:US09139673B2

    公开(公告)日:2015-09-22

    申请号:US14382147

    申请日:2013-03-07

    申请人: Ineos Europe AG

    摘要: Process for the introduction of liquid feeds to a polymerization process, and in particular for the introduction of a fresh feed selected from fresh comonomer and fresh inert hydrocarbon to a polymerization reactor. The process includes passing the fresh feed and a process stream containing a first component selected from hydrogen, nitrogen and methane and a second component which is a monomer to a separator at a pressure of 0.4 MPa (4 bar) or less to produce a first stream containing the majority of the first component and a second stream containing the majority of the fresh feed and the majority of the second component, and passing the second stream to the polymerization reactor.

    摘要翻译: 将液体进料引入聚合方法,特别是将选自新鲜共聚单体和新鲜惰性烃的新鲜原料引入聚合反应器的方法。 该方法包括使新鲜进料和含有选自氢,氮和甲烷的第一组分的工艺物流和作为单体的第二组分以0.4MPa(4bar)或更低的压力通入分离器,以产生第一流 含有大多数第一组分和含有大部分新鲜进料和大部分第二组分的第二料流,并将第二料流送入聚合反应器。

    PROPYLENE-ETHYLENE RANDOM COPOLYMER
    10.
    发明申请
    PROPYLENE-ETHYLENE RANDOM COPOLYMER 有权
    丙烯 - 乙烯随机共聚物

    公开(公告)号:US20150240063A1

    公开(公告)日:2015-08-27

    申请号:US14428815

    申请日:2013-09-17

    申请人: INEOS EUROPE AG

    IPC分类号: C08L23/14

    摘要: A propylene random copolymer composition is disclosed, comprising (A) 60-85 wt % of a copolymer of propylene and from 0.1 to 2 wt % of units derived from ethylene and having a melt flow rate value according to ISO 1130 (230° C., 2.16 kg) of from 80 to 200 g/10 min; and (B) 15-40 wt % of a copolymer of propylene and from 7 to 17 wt % of units derived from ethylene, said composition having a total ethylene content of from 3 to 4.5 wt %, and a melt flow rate value according to ISO 1133 (230° C., 2.16 kg) of greater than 60 to 150 g/10 min, the composition having not been subject to any form of post-reactor treatment which increases its melt flow rate by more than 5 g/10 min. Cast films, sheets, or injection moulded or injection stretch blow moulded articles made from the above composition are also disclosed.

    摘要翻译: 公开了一种丙烯无规共聚物组合物,其包含(A)60-85重量%的丙烯共聚物和0.1至2重量%的衍生自乙烯的单元,并且具有根据ISO 1130(230℃)的熔体流动速率值 ,2.16kg)为80〜200g / 10min; 和(B)15-40重量%的丙烯共聚物和7至17重量%的衍生自乙烯的单元,所述组合物的总乙烯含量为3至4.5重量%,熔体流动速率值为 ISO 1133(230℃,2.16kg)大于60至150g / 10min,该组合物未经受任何形式的后反应器处理,其熔体流动速率增加超过5g / 10min 。 还公开了由上述组合物制成的铸膜,片材或注射成型或注射拉伸吹塑制品。