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1. 发明申请

US20060287442A1 POLYMER TRANSFER WITHIN A POLYMERIZATION SYSTEM 有权
标题翻译：聚合物在聚合体系中的转移
公开(公告)号：US20060287442A1
公开(公告)日：2006-12-21
申请号：US11467284
申请日：2006-08-25
申请人： Robert McElvain , John Hottovy , Bryan Garner , Gregory Hendrickson , John Tait
发明人： Robert McElvain , John Hottovy , Bryan Garner , Gregory Hendrickson , John Tait
IPC分类号： C08F2/00
CPC分类号： B01J19/2435 , B01J8/0015 , B01J8/20 , B01J2208/00442 , B01J2208/00539 , B01J2208/00761
摘要： A method for transferring polymer within a polymerization system, comprising continuously withdrawing the polymer from the reactor and conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber. A method for transferring polymer within a polymerization system comprising conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber and purging interstitial gases from the polymer prior to conveying the polymer from the sash chamber to a purge column. A method for transferring polymer within a polymerization system comprising conveying the polymer from a flash chamber directly to a purge column via a pressure differential between the flash chamber and the purge column.
摘要翻译：一种用于在聚合体系内转移聚合物的方法，包括从反应器连续地抽出聚合物并通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室。一种用于在聚合体系内转移聚合物的方法，包括通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室，并在将聚合物从窗扇室输送到吹扫之前从聚合物中清除间隙气体柱。一种用于在聚合体系内转移聚合物的方法，包括通过闪蒸室和净化塔之间的压差将聚合物从闪蒸室直接输送到吹扫塔。

2. 发明申请

US20050272914A1 Polymer transfer within a polymerization system 有权
标题翻译：聚合体系内的聚合物转移
公开(公告)号：US20050272914A1
公开(公告)日：2005-12-08
申请号：US11146616
申请日：2005-06-07
申请人： Robert McElvain , John Hottovy , Bryan Garner , Gregory Hendrickson , John Tait
发明人： Robert McElvain , John Hottovy , Bryan Garner , Gregory Hendrickson , John Tait
IPC分类号： B01J8/00 , B01J8/20 , B01J19/24 , C08F2/00
CPC分类号： B01J19/2435 , B01J8/0015 , B01J8/20 , B01J2208/00442 , B01J2208/00539 , B01J2208/00761
摘要： A method for transferring polymer within a polymerization system, comprising continuously withdrawing the polymer from the reactor and conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber. A method for transferring polymer within a polymerization system comprising conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber and purging interstitial gases from the polymer prior to conveying the polymer from the flash chamber to a purge column. A method for transferring polymer within a polymerization system comprising conveying the polymer from a flash chamber directly to a purge column via a pressure differential between the flash chamber and the purge column.
摘要翻译：一种用于在聚合体系内转移聚合物的方法，包括从反应器连续地抽出聚合物并通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室。一种用于在聚合系统内转移聚合物的方法，包括通过反应器和闪蒸室之间的压差将聚合物从反应器输送到闪蒸室，并在将聚合物从闪蒸室输送到吹扫之前从聚合物中清除间隙气体柱。一种用于在聚合体系内转移聚合物的方法，包括通过闪蒸室和净化塔之间的压差将聚合物从闪蒸室直接输送到吹扫塔。

3. 发明申请

US20060063896A1 Energy efficient polyolefin process 有权
标题翻译：节能聚烯烃工艺
公开(公告)号：US20060063896A1
公开(公告)日：2006-03-23
申请号：US11213374
申请日：2005-08-26
申请人： Robert McElvain , John Hottovy , Ralph Romig , Donald Verser , David Burns , John Tait , Richard Peacock , James Hein , Scott Kufeld , Carl Fenderson , Anurag Gupta
发明人： Robert McElvain , John Hottovy , Ralph Romig , Donald Verser , David Burns , John Tait , Richard Peacock , James Hein , Scott Kufeld , Carl Fenderson , Anurag Gupta
IPC分类号： C08F2/00
CPC分类号： B01J19/0013 , B01J8/0015 , B01J19/1837 , B01J19/2455 , B01J2208/00212 , B01J2208/00752 , B01J2219/00006 , B01J2219/0236 , C08F2/01 , C08F6/003 , C08F10/00 , C08F110/02 , C08L23/00 , C08F2/14
摘要： A manufacturing process for producing polyolefin, having a feed system, a reactor system including at least one polymerization reactor, a diluent/monomer recovery system, a fractionation system, and an extrusion/loadout system having an extruder. The manufacturing process is configured to consume less than 325 kilowatt-hours of electricity per metric ton of polyolefin produced.
摘要翻译：具有进料系统的聚烯烃的制造方法，包括至少一个聚合反应器的反应器系统，稀释剂/单体回收系统，分馏系统和具有挤出机的挤出/压出系统。制造过程被配置为每公吨生产的聚烯烃消耗少于325千瓦小时的电力。

4. 发明申请

US20050034968A1 Process and apparatus for separating diluent from polymer solids 有权
公开(公告)号：US20050034968A1
公开(公告)日：2005-02-17
申请号：US10948015
申请日：2004-09-23
申请人： Thomas Reid , Scott Kufeld , John Tait , David Burns , Donald Verser
发明人： Thomas Reid , Scott Kufeld , John Tait , David Burns , Donald Verser
IPC分类号： B01J8/00 , B01J8/20 , B01J19/18 , C08F2/00 , C08F2/14 , C08F6/00 , C08F6/24 , C08F10/00 , C08F210/06 , C08F210/16 , B01D1/28
CPC分类号： C08F6/003 , B01J8/007 , B01J8/20 , B01J19/1837 , B01J2208/0061 , B01J2208/00761 , B01J2219/00006 , B01J2219/00254 , C08F6/24 , C08F10/00 , C08F210/06 , C08F210/16 , C08L23/00 , C08F2/14 , C08F2/01 , C08F210/14
摘要： Polymer solids are maintained in an intermediate pressure zone for a desired polymer solids residence time and then transferred to a purge zone or other lower pressure zone. An increase in the polymer solids residence time in the intermediate pressure zone allows more diluent to flash or separate, thereby avoiding or reducing the need for a low pressure flash zone. A fluff chamber may be disposed between the intermediate pressure zone and a lower pressure zone. A transporter tank may be used to transport polymer solids after the intermediate pressure zones.

5. 发明申请

US20070142576A1 Monomer recovery by returning column overhead liquid to the reactor 有权
标题翻译：通过将塔顶液体返回到反应器来回收单体
公开(公告)号：US20070142576A1
公开(公告)日：2007-06-21
申请号：US11313328
申请日：2005-12-21
申请人： John Tait , Robert Murphy , Michael Watts , Anurag Gupta
发明人： John Tait , Robert Murphy , Michael Watts , Anurag Gupta
IPC分类号： C08F2/00
CPC分类号： C08F6/003 , B01J19/1837 , B01J2208/00274 , B01J2208/00761 , B01J2219/00006 , Y10S526/92 , C08L23/00
摘要： A polyolefin production system, comprising a polymerization reactor (such as a polyethylene loop slurry reactor) and a fractionation system that receives reactor effluent processed in a diluent/monomer recovery system for recycle to the reactor and to suppliers. A conduit diverts a portion of a reflux flow comprising monomer, such as ethylene, from within the fractionation system to the polymerization reactor, providing for less venting of monomer, such as ethylene, to the supplier. Accordingly, monomer yield is advantageously increased, as the monomer returned to the reactor displaces monomer feedstock to the reactor. The reflux flow may originate from a condensed overhead lights from a diluent recycle column disposed in the fractionation subsystem. The diluent recycle column may receive a stream comprising diluent and monomer as feed from the diluent/monomer recovery subsystem, and may receive the non-diverted portion of the reflux flow as reflux.
摘要翻译：聚烯烃生产系统，包括聚合反应器（例如聚乙烯回路浆料反应器）和分馏系统，其接收在稀释剂/单体回收系统中处理以反应至反应器和供应商的反应器流出物。导管将包含单体（例如乙烯）的一部分回流流从分馏系统中分离出来，从而为供应商提供较少的单体例如乙烯的排放。因此，随着返回到反应器的单体将单体原料置换到反应器，单体产率有利地增加。回流可来自设置在分馏子系统中的稀释剂再循环柱的冷凝塔顶灯。稀释剂再循环柱可以接收包含稀释剂和单体的物流作为来自稀释剂/单体回收子系统的进料，并且可以接收作为回流的回流的非转移部分。

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