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1. 发明申请

US20120275931A1 System and Method for Providing a Continuous Flow of Catalyst Into a Polyolefin Reactor 有权
标题翻译：提供催化剂连续流入聚烯烃反应器的系统和方法
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。

2. 发明授权

US07381777B1 Method for controlling fouling in slurry-type polymerization reactors 有权
标题翻译：淤浆型聚合反应器中污垢控制方法
公开(公告)号：US07381777B1
公开(公告)日：2008-06-03
申请号：US11711453
申请日：2007-02-26
申请人： Thomas W. Towles , James E. Skinner , Robert G. DePierri , James Austin Kendrick
发明人： Thomas W. Towles , James E. Skinner , Robert G. DePierri , James Austin Kendrick
IPC分类号： C08F2/12 , C08F10/02
CPC分类号： C08F10/02 , C08F210/16 , C08F2400/02 , C08F2/40 , C08F2/005 , C08F2/14 , C08F210/14 , C08F2500/12
摘要： The present invention relates to methods for controlling fouling in the reaction zone of slurry-type olefin polymerization reactors by measuring a process operating parameter and by responding to said process operating parameter, e.g., by introducing a gaseous poison for the polymerization catalyst in response to a comparison between said measured parameter and a fouling parameter limit for said measured parameter.
摘要翻译：本发明涉及通过测量工艺操作参数和响应所述工艺操作参数来控制浆料型烯烃聚合反应器的反应区域中的结垢的方法，例如通过引入用于聚合催化剂的气体毒物以响应于所述测量参数与所述测量参数的污垢参数极限之间的比较。

3. 发明授权

US09662624B2 System and method for providing a continuous flow of catalyst into a polyolefin reactor 有权
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.

4. 发明授权

US08124019B2 Clog-resistant pump assembly for slurry loop reactor 失效
标题翻译：用于泥浆回路反应器的防堵泵组件
公开(公告)号：US08124019B2
公开(公告)日：2012-02-28
申请号：US12829590
申请日：2010-07-02
申请人： Robert G. DePierri , Norman F. Cook
发明人： Robert G. DePierri , Norman F. Cook
IPC分类号： F04D29/54 , B01J19/18 , C08F2/01
CPC分类号： F04D7/00 , B01J19/1837 , B01J2219/00094 , B01J2219/00247 , C08F10/00 , F04D29/548
摘要： The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, and a plurality of stationary guide vanes connected to the housing upstream of the impeller blades and having free ends that are radially spaced apart from the nosecone. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process.
摘要翻译：所述泵组件包括可旋转地安装在所述反应器管中的叶轮，所述叶轮具有通过所述管产生流体浆液流的叶片，所述叶片沿与所述叶片一起旋转的所述叶轮叶片的前方沿上游方向突出，固定导向叶片连接到叶轮叶片上游的壳体并且具有与鼻锥径向间隔开的自由端。固定叶片的前缘成形为将任何有丝质的材料引导到固定叶片的自由端与要切碎的旋转鼻锥之间的径向间隙中，从而防止当产生这种致密材料时泵组件的结垢和堵塞在聚合过程中。

5. 发明申请

US20110046322A1 Clog-Resistant Pump Assembly For Slurry Loop Reactor 失效
标题翻译：用于泥浆循环反应器的防堵泵组件
公开(公告)号：US20110046322A1
公开(公告)日：2011-02-24
申请号：US12829590
申请日：2010-07-02
申请人： Robert G. DePierri , Norman F. Cook, III
发明人： Robert G. DePierri , Norman F. Cook, III
IPC分类号： F04D29/54 , B01J19/18 , C08F2/01
CPC分类号： F04D7/00 , B01J19/1837 , B01J2219/00094 , B01J2219/00247 , C08F10/00 , F04D29/548
摘要： The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, and a plurality of stationary guide vanes connected to the housing upstream of the impeller blades and having free ends that are radially spaced apart from the nosecone. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process.
摘要翻译：所述泵组件包括可旋转地安装在所述反应器管中的叶轮，所述叶轮具有通过所述管产生流体浆液流的叶片，所述叶片沿与所述叶片一起旋转的所述叶轮叶片的前方沿上游方向突出，固定导向叶片连接到叶轮叶片上游的壳体并且具有与鼻锥径向间隔开的自由端。固定叶片的前缘成形为将任何有丝质的材料引导到固定叶片的自由端与要切碎的旋转鼻锥之间的径向间隙中，从而防止当产生这种致密材料时泵组件的结垢和堵塞在聚合过程中。

6. 发明授权

US06926868B2 Continuous slurry polymerization volatile removal 有权
标题翻译：连续淤浆聚合挥发性去除
公开(公告)号：US06926868B2
公开(公告)日：2005-08-09
申请号：US09992590
申请日：2001-11-06
申请人： James Austin Kendrick , Thomas W. Towles , Scott Thomas Roger , Robert G. DePierri
发明人： James Austin Kendrick , Thomas W. Towles , Scott Thomas Roger , Robert G. DePierri
IPC分类号： B01D3/06 , B01J8/00 , B01J8/20 , B01J8/38 , B01J19/00 , B01J19/18 , B01J19/24 , C08F2/00 , C08F6/00 , C08F10/00 , C08F210/16 , B01J8/08
CPC分类号： B01D3/06 , B01J8/003 , B01J8/005 , B01J8/0055 , B01J8/007 , B01J8/382 , B01J19/0053 , B01J19/1837 , B01J2208/0007 , B01J2208/00539 , B01J2208/00761 , B01J2208/00769 , B01J2208/00867 , B01J2219/00006 , B01J2219/00033 , B01J2219/00103 , B01J2219/00114 , B01J2219/00162 , B01J2219/00164 , B01J2219/00191 , B01J2219/002 , B01J2219/00213 , B01J2219/00231 , B01J2219/00236 , B01J2219/0024 , C08F2/00 , C08F6/003 , C08F10/00 , C08F210/16 , C08F2/14 , C08F210/14
摘要： A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent of a slurry loop reactor containing a flow of slurry therein, comprising a discharge conduit extending a distance into the loop reactor; the conduit having a longitudinal axis and an opening inside the loop reactor; at least a portion of the conduit being curved along its longitudinal axis inside the loop reactor; and the opening substantially facing the flow of the slurry, wherein the discharge conduit is located within a lower leg of the loop reactor such that a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank wherein volatile inert diluent and unreacted monomers are removed and the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.
摘要翻译：公开了一种用于连续分离包含稀释剂和未反应单体的液体介质的流体/设备，所述液体介质包含其中含有浆料流的淤浆环流反应器的聚合流出物，所述淤浆环流反应器包括延伸一段距离进入环管反应器的排放管道; 导管具有纵向轴线和环形反应器内部的开口; 导管的至少一部分沿其纵向轴线在环形反应器内弯曲; 并且所述开口基本上面向所述浆料的流动，其中所述排出导管位于所述环管反应器的小腿内，使得将来自浆料反应器的聚合流出物通过排出阀和输送管道连续排放到第一中间压力闪蒸罐，其中挥发性惰性稀释剂和未反应单体被除去，而在将约50至100％的惰性稀释剂从其中移除到第二闪蒸罐中的较低压力下保留的聚合物固体。

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