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公开(公告)号:US09187383B2
公开(公告)日:2015-11-17
申请号:US14700912
申请日:2015-04-30
发明人: Scott E. Kufeld , John D. Hottovy , Ai-fu Chang
IPC分类号: C07C7/11 , C07C7/00 , C07C7/156 , B01D53/14 , C07C7/04 , C07C5/32 , C07C4/02 , C07C4/06 , C08F110/02
CPC分类号: C08F110/02 , B01D3/06 , B01D53/1487 , B01D53/1493 , B01D2252/10 , B01D2252/20405 , B01D2252/20421 , B01D2252/20431 , B01D2252/20436 , B01D2252/20468 , B01D2252/504 , B01D2257/7022 , B01J19/245 , B01J2219/24 , C07C4/02 , C07C4/06 , C07C5/32 , C07C7/005 , C07C7/04 , C07C7/11 , C08F6/001 , C08F10/02 , C08J11/04 , Y02P30/464 , C08L23/04
摘要: A process for component separation in a polymer production system, comprising separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises ethane and unreacted ethylene, distilling the gas stream into a light hydrocarbon stream, wherein the light hydrocarbon stream comprises ethane and unreacted ethylene, contacting the light hydrocarbon stream with an absorption solvent system, wherein at least a portion of the unreacted ethylene from the light hydrocarbon stream is absorbed by the absorption solvent system, and recovering a waste gas stream from the absorption solvent system, wherein the waste gas stream comprises ethane, hydrogen, or combinations thereof.
摘要翻译: 一种聚合物生产系统中组分分离的方法,包括将聚合产物流分离成气流和聚合物流,其中气流包括乙烷和未反应的乙烯,将气流蒸馏成轻质烃流,其中轻烃 流包含乙烷和未反应的乙烯,使轻质烃流与吸收溶剂体系接触,其中至少一部分来自轻烃流的未反应的乙烯被吸收溶剂系统吸收,并从吸收溶剂中回收废气流 系统,其中废气流包括乙烷,氢气或其组合。
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公开(公告)号:US08921498B2
公开(公告)日:2014-12-30
申请号:US13664944
申请日:2012-10-31
IPC分类号: C08F210/00 , C08F2/00 , C08F110/02 , B01J19/00 , C08F2/14 , C08J11/02 , C08F6/00 , C08F2/01 , B01J19/18
CPC分类号: C08F2/01 , B01J19/1837 , B01J2219/00162 , C08F2/14 , C08F6/00 , C08F6/003 , C08J11/02 , C08F10/02 , C08F2/00 , C08F210/16 , C08F210/14 , C08L23/06
摘要: Processes and systems for the production for pressure management of a polymerization product flowing from a loop polymerization reactor to a separation vessel in a slurry polymerization system are disclosed herein. For example, a process comprises withdrawing the polymerization product from a loop polymerization reactor, and conveying the withdrawn polymerization product to a separation vessel via a first pressure differential and a second pressure differential. The withdrawn polymerization product may flow through the first pressure differential before flowing through the second pressure differential, and the first pressure differential may be less than the second pressure differential.
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公开(公告)号:US08871886B1
公开(公告)日:2014-10-28
申请号:US13886893
申请日:2013-05-03
发明人: John D. Hottovy , Scott E. Kufeld
IPC分类号: C08F210/00 , C08F2/00 , C08F110/02 , B01J19/00 , C08F210/14
CPC分类号: C08F10/02 , C08F2/01 , C08F110/02 , C08F210/02 , C08F210/14 , C08F210/16 , C08F2400/02
摘要: A process for making a low density polymer in a polymerization reactor system, the process comprising polymerizing an olefin monomer, and optionally an olefin comonomer, in the presence of a diluent in a polymerization reactor to make a polymerization product slurry consisting of a liquid phase and a solid phase, wherein the solid phase comprises an olefin polymer having a density of between about 0.905 g/cm3 to about 0.945 g/cm3; and discharging the polymerization product slurry from the polymerization reactor through a continuous take-off valve to make a mixture further comprising a vapor phase. The mixture comprises a pressure less than a bubble point pressure of a component in the polymerization product slurry.
摘要翻译: 一种在聚合反应器系统中制备低密度聚合物的方法,该方法包括在稀释剂存在下在聚合反应器中聚合烯烃单体和任选的烯烃共聚单体以制备由液相和 固相,其中所述固相包含密度为约0.905g / cm 3至约0.945g / cm 3的烯烃聚合物; 并通过连续的取出阀将聚合产物浆料从聚合反应器排出,以制备进一步包含气相的混合物。 该混合物包含小于聚合产物浆料中组分的泡泡点压力的压力。
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公开(公告)号:US20140121334A1
公开(公告)日:2014-05-01
申请号:US13664944
申请日:2012-10-31
IPC分类号: C08F2/01
CPC分类号: C08F2/01 , B01J19/1837 , B01J2219/00162 , C08F2/14 , C08F6/00 , C08F6/003 , C08J11/02 , C08F10/02 , C08F2/00 , C08F210/16 , C08F210/14 , C08L23/06
摘要: Processes and systems for the production for pressure management of a polymerization product flowing from a loop polymerization reactor to a separation vessel in a slurry polymerization system are disclosed herein. For example, a process comprises withdrawing the polymerization product from a loop polymerization reactor, and conveying the withdrawn polymerization product to a separation vessel via a first pressure differential and a second pressure differential. The withdrawn polymerization product may flow through the first pressure differential before flowing through the second pressure differential, and the first pressure differential may be less than the second pressure differential.
摘要翻译: 在本文中公开了用于从淤浆聚合系统中的环状聚合反应器流到分离容器的聚合产物的压力管理生产的方法和系统。 例如,一种方法包括从环路聚合反应器中取出聚合产物,并通过第一压力差和第二压差将抽出的聚合产物输送到分离容器。 撤回的聚合产物可能在流过第二压力差之前流过第一压力差,并且第一压力差可以小于第二压力差。
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公开(公告)号:US20130102742A1
公开(公告)日:2013-04-25
申请号:US13712752
申请日:2012-12-12
IPC分类号: C08F2/01
CPC分类号: C08F2/01 , B01J8/0015 , B01J8/005 , B01J8/20 , B01J8/226 , B01J8/382 , B01J19/006 , B01J19/0066 , B01J19/1837 , B01J19/1875 , B01J2219/00094 , B01J2219/00114 , B01J2219/00189 , B01J2219/00777 , C08F6/003 , C08F10/00 , C08F10/02 , C08F10/06 , C08F110/06 , C08F210/16 , C08L23/10 , C08F2/14 , C08F210/14 , C08F210/08
摘要: An olefin polymerization process and apparatus wherein a fluid slurry comprising monomer, diluent and catalyst is circulated in a continuous loop reactor by two or more pumps. The process and apparatus allow operating the reaction at significantly higher solids content in the circulating fluid slurry. In a preferred embodiment, the fluid slurry is circulated by two impellers arranged so that the downstream impeller benefits from the rotational energy imparted by the upstream impeller. An olefin polymerization process operating at higher reactor solids by virtue of more aggressive circulation has improved efficiencies, particularly in larger-volume reactors.
摘要翻译: 一种烯烃聚合方法和装置,其中包含单体,稀释剂和催化剂的流体浆料在连续环流反应器中通过两个或多个泵循环。 该方法和装置允许在循环流体浆液中以显着更高的固体含量操作反应。 在优选实施例中,流体浆料通过布置成使得下游叶轮从由上游叶轮施加的旋转能量受益的两个叶轮循环。 通过更积极的循环在较高的反应器固体中操作的烯烃聚合方法具有改进的效率,特别是在较大体积的反应器中。
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公开(公告)号:US20130056899A1
公开(公告)日:2013-03-07
申请号:US13656357
申请日:2012-10-19
发明人: Robert R. McElvain , John D. Hottovy , Ralph W. Romig , Donald W. Verser , David H. Burns , John H. Tait , Richard Peacock , James E. Hein , Scott E. Kufeld , Carl W. Fenderson , Anurag Gupta , Dale A. Zellers
IPC分类号: B29C47/08
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 system for producing polyolefin includes a polymerization reactor, a flash chamber, and a purge column. In certain embodiments, the purge column may receive a solids stream directly from the flash chamber. Further, the purge column may function as a feed tank for an extruder within an extrusion/loadout system. According to certain embodiments, the manufacturing system may be configured to consume less than 445 kilowatt-hours of energy per metric ton of polyolefin produced based on consumption of electricity, steam, and fuel gas.
摘要翻译: 用于生产聚烯烃的制造系统包括聚合反应器,闪蒸室和吹扫塔。 在某些实施方案中,净化塔可以直接从闪蒸室接收固体物流。 此外,吹扫塔可用作挤出/挤出系统中的挤出机的进料罐。 根据某些实施例,制造系统可以被配置为消耗基于消耗电力,蒸汽和燃料气体的每公吨聚烯烃消耗少于445千瓦小时的能量。
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