利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.012 秒)

    SLURRY PHASE POLYMERISATION PROCESS
    3.
    发明申请
    SLURRY PHASE POLYMERISATION PROCESS 有权
    浆料相聚合方法

    公开(公告)号：US20140142260A1

    公开(公告)日：2014-05-22

    申请号：US14127289

    申请日：2012-06-21

    申请人： Daniel Marissal ,  Benoit Koch ,  Christophe Moineau

    发明人： Daniel Marissal ,  Benoit Koch ,  Christophe Moineau

    IPC分类号： C08F4/22 ,  C08F4/16 ,  C08F4/10 ,  C08F2/01

    CPC分类号： C08F4/22 ,  C08F2/01 ,  C08F4/10 ,  C08F4/16 ,  C08F110/02 ,  C08F2/14

    摘要： A slurry process for the polymerisation of ethylene is disclosed, which takes place in a reactor system comprising one or more reactors in series, having a characteristic such that the average polymerisation productivity [kg PE/kgcata] per unit ethylene per hour aI during operation at any first residence time rI is less than 1.7 (a2r2 −aIrI)/(r2−rI), where a2 is the average polymerisation productivity [kgPE/kgcata] per unit ethylene per hour during operation at any second residence time r2 where r2>rI, a2 and r2 being measured either in the same reactor in the case of a single reactor polymerisation, or in a reactor subsequent to the reactor in which aI and rI are measured in the case where the polymerisation takes place in more than one reactor, and wherein the specific yield of the reactor system is greater than 0.3 tonnes/m3, specific yield being the production rate of the final reactor (kg/h) in the reactor system divided by the total volume of all the reactors in the reactor system (m3) multiplied by the total residence time in all the reactors in the reactor system (h). Operating the system under the above conditions results in improved productivity/unit ethylene.

    摘要翻译： 公开了一种用于乙烯聚合的淤浆方法，其在包括一个或多个串联的反应器的反应器系统中进行，其特征在于使得在每个单位乙烯的平均聚合生产率[kg PE / kgcata] 任何第一停留时间rI小于1.7（a2r2-aIrI）/（r2-rI），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> rI 在单反应器聚合的情况下，在相同的反应器中或在反应器中的反应器中测量a2和r2，其中在多于一个反应器中进行聚合的情况下测量aI和rI; 其中反应器系统的特定产率大于0.3吨/ m3，比产率是反应器系统中最终反应器的生产速率（kg / h）除以反应器中所有反应器的总体积 （m3）乘以反应器系统（h）中所有反应器中的总停留时间。 在上述条件下操作系统可提高生产率/单位乙烯。

    Slurry phase polymerisation process
    6.
    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

    申请人： Daniel Marissal ,  Benoit Koch ,  Christophe Moineau

    发明人： Daniel Marissal ,  Benoit Koch ,  Christophe Moineau

    IPC分类号： C08F2/00 ,  C08F4/72 ,  C08F4/44 ,  C08F4/22 ,  C08F110/02 ,  C08F2/01 ,  C08F4/10 ,  C08F4/16

    CPC分类号： C08F4/22 ,  C08F2/01 ,  C08F4/10 ,  C08F4/16 ,  C08F110/02 ,  C08F2/14

    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 the activation of a supported chromium oxide based catalyst
    7.
    发明授权
    Process for the activation of a supported chromium oxide based catalyst 有权
    活化负载的氧化铬基催化剂的方法

    公开(公告)号：US09006363B2

    公开(公告)日：2015-04-14

    申请号：US13879681

    申请日：2011-10-05

    申请人： Christophe Moineau ,  Stephan Detournay

    发明人： Christophe Moineau ,  Stephan Detournay

    IPC分类号： C08F4/24 ,  C08F10/02 ,  C08F210/02 ,  C08F210/16 ,  C08F110/02

    CPC分类号： C08F4/24 ,  C08F10/02 ,  C08F110/02 ,  C08F210/02 ,  C08F210/16 ,  C08F2/34

    摘要： Process for the activation of a supported chromium oxide based catalyst in a fluidized bed activation reactor which has a catalyst bed being fluidized by a fluidization gas. The activation includes treatment at temperatures above 500° C., in which in an initial stage, where there is an initial temperature increase, the fluidization velocity (Vf1) of the fluidization gas is maintained below 6.5 centimeters per second (cm/sec) until the temperature inside the activation reactor reaches at least 200° C., and the fluidization gas is then brought to a value (Vf2) which is at least 1 cm/sec higher than Vf1.

    摘要翻译： 在流化床活化反应器中活化负载的氧化铬基催化剂的方法，其中催化剂床被流化气体流化。 激活包括在高于500℃的温度下的处理，其中在初始阶段，在初始温度升高的情况下，流化气体的流化速度（Vf1）保持在6.5厘米/秒以下（cm /秒），直到 活化反应器内的温度达到至少200℃，然后使流化气体达到比Vf1高至少1cm / sec的值（Vf2）。