公开(公告)号：US20120275931A1

公开(公告)日：2012-11-01

申请号：US13510420

申请日：2009-12-22

申请人： Robert G. Depierri ,  J. Charles Dabadie ,  N. Frank Cook, III

发明人： Robert G. Depierri ,  J. Charles Dabadie ,  N. Frank Cook, III

IPC分类号： B01J19/00 ,  F04B53/00

CPC分类号： B01J8/002 ,  B01J19/2435 ,  B01J2208/00752 ,  C08F10/00 ,  F04C2/1071 ,  F04C11/003 ,  F04C15/0038 ,  C08F2/00

摘要： Both a catalyst feed system and a method are provided for providing a flow, of a mud-like catalyst slurry into a polyolefin reactor. The system includes a pressurized reservoir of the catalyst having an outlet, and a progressive cavity pump including a stator and a rotor. The pump stator has an inlet connected to the reservoir outlet, and an outlet leading to the polyolefin reactor. In operation, the reservoir is first pressurized to a level a little higher than the pressure of the reactor. The outlet of the reservoir is opened and the progressive cavity pump is actuated. The pressure drop generated across the catalyst slurry contained in the reservoir by the pump causes the slurry diluent to flow between the interstices of the particles of catalyst. The thick, mud-like catalyst slurry is quickly transformed into a much less viscous, syrup-like slurry that flows from the reservoir outlet to the inlet of the pump stator. The progressive cavity pump then continuously conveys the catalyst through the stator outlet and into the reactor.

摘要翻译： 提供了催化剂进料系统和方法来提供泥浆状催化剂浆料流入聚烯烃反应器的流程。 该系统包括具有出口的催化剂的加压储存器和包括定子和转子的渐进腔泵。 泵定子具有连接到储存器出口的入口和通向聚烯烃反应器的出口。 在操作中，储存器首先被加压到略高于反应器压力的水平。 储存器的出口打开，并且逐行腔泵被致动。 通过泵产生的包含在储存器中的催化剂浆料的压降导致浆料稀释剂在催化剂颗粒的间隙之间流动。 厚的泥浆状催化剂浆料被快速转化成从储存器出口流到泵定子入口的粘度较低的浆状浆料。 然后，渐进式空腔泵连续地将催化剂传送通过定子出口并进入反应器。

公开(公告)号：US09662624B2

公开(公告)日：2017-05-30

申请号：US13510420

申请日：2009-12-22

申请人： Robert G. Depierri ,  J. Charles Dabadie ,  N. Frank Cook, III

发明人： Robert G. Depierri ,  J. Charles Dabadie ,  N. Frank Cook, III

IPC分类号： F04C2/107 ,  B01J8/00 ,  B01J19/24 ,  C08F10/00 ,  F04C11/00 ,  F04C15/00

CPC分类号： B01J8/002 ,  B01J19/2435 ,  B01J2208/00752 ,  C08F10/00 ,  F04C2/1071 ,  F04C11/003 ,  F04C15/0038 ,  C08F2/00

摘要： Both a catalyst feed system and a method are provided for providing a flow, of a mud-like catalyst slurry into a polyolefin reactor. The system includes a pressurized reservoir of the catalyst having an outlet, and a progressive cavity pump including a stator and a rotor. The pump stator has an inlet connected to the reservoir outlet, and an outlet leading to the polyolefin reactor. In operation, the reservoir is first pressurized to a level a little higher than the pressure of the reactor. The outlet of the reservoir is opened and the progressive cavity pump is actuated. The pressure drop generated across the catalyst slurry contained in the reservoir by the pump causes the slurry diluent to flow between the interstices of the particles of catalyst. The thick, mud-like catalyst slurry is quickly transformed into a much less viscous, syrup-like slurry that flows from the reservoir outlet to the inlet of the pump stator. The progressive cavity pump then continuously conveys the catalyst through the stator outlet and into the reactor.