公开(公告)号：US08796402B2

公开(公告)日：2014-08-05

申请号：US13763252

申请日：2013-02-08

申请人： Ineos Commercial Services UK Limited

发明人： Andreas Harald Gondorf ,  Jose Andre Laille ,  Claudine Viviane Lalanne-Magne

IPC分类号： C08F4/00 ,  C08F4/44 ,  C08F210/00

CPC分类号： C08F2/34 ,  B01J8/1809 ,  B01J2208/00646 ,  B01J2208/00716 ,  C08F210/16 ,  C08F2400/02 ,  C08F210/14

摘要： Process for polymerization and, in particular, to a process for start-up of a gas phase fluidized bed polymerization reaction involving one or more monomers using a catalyst in a reactor. The process includes providing a start-up bed of particles in the reactor in the presence of the one or more monomers but in the absence of the catalyst, introducing at T0 catalyst to the reactor to initiate reaction and start-up polymer production at a time Ti, Ti being between 1 and 6 hours after T0. The value of Xi is less than a threshold value, wherein: Xi=Cumulative production in the time period T0 to Ti/(Cumulative catalyst injection the time period T0 to Ti*PiC2=), where PiC2= is the ethylene partial pressure in the reactor at the time Ti, subsequently stopping the injection of catalyst, and taking a corrective action to address the low value of Xi.

摘要翻译： 聚合方法，特别是在反应器中使用催化剂引发含有一种或多种单体的气相流化床聚合反应的方法。 该方法包括在一种或多种单体的存在下在反应器中提供颗粒启动床，但是在不存在催化剂的情况下，在T0催化剂下引入反应器以一次启动反应和启动聚合物生产 Ti，Ti在T0后1〜6小时。 Xi的值小于阈值，其中：Xi =时间段T0至Ti /（累积催化剂注入时间段T0至Ti * PiC2 =）的累积产量，其中PiC2 =乙烯分压 反应器在Ti时，随后停止注入催化剂，并采取纠正措施来解决Xi的低值。

公开(公告)号：US20140135467A1

公开(公告)日：2014-05-15

申请号：US13763252

申请日：2013-02-08

申请人： Ineos Commercial Services UK Limited

发明人： Andreas Harald Gondorf ,  Jose Andre Laille ,  Claudine Viviane Lalanne-Magne

IPC分类号： C08F2/34

CPC分类号： C08F2/34 ,  B01J8/1809 ,  B01J2208/00646 ,  B01J2208/00716 ,  C08F210/16 ,  C08F2400/02 ,  C08F210/14

摘要： Process for polymerization and, in particular, to a process for start-up of a gas phase fluidized bed polymerization reaction involving one or more monomers using a catalyst in a reactor. The process includes providing a start-up bed of particles in the reactor in the presence of the one or more monomers but in the absence of the catalyst, introducing at T0 catalyst to the reactor to initiate reaction and start-up polymer production at a time Ti, Ti being between 1 and 6 hours after T0. The value of Xi is less than a threshold value, wherein: Xi=Cumulative production in the time period T0 to Ti/(Cumulative catalyst injection the time period T0 to Ti*PiC2=), where PiC2= is the ethylene partial pressure in the reactor at the time Ti, subsequently stopping the injection of catalyst, and taking a corrective action to address the low value of X.

摘要翻译： 聚合方法，特别是在反应器中使用催化剂引发含有一种或多种单体的气相流化床聚合反应的方法。 该方法包括在一种或多种单体的存在下在反应器中提供颗粒启动床，但是在不存在催化剂的情况下，在T0催化剂下引入反应器以一次启动反应和启动聚合物生产 Ti，Ti在T0后1〜6小时。 Xi的值小于阈值，其中：Xi =在时间段T0至Ti /（累积催化剂注入时间段T0至Ti * PiC2 =）的累积产量，其中PiC2 =乙烯分压 反应器在Ti时，随后停止催化剂的注入，并采取纠正措施来解决X的低值。