PRESSURE MANAGEMENT FOR SLURRY POLYMERIZATION
    1.
    发明申请
    PRESSURE MANAGEMENT FOR SLURRY POLYMERIZATION 审中-公开
    浆料聚合的压力管理

    公开(公告)号:WO2014070608A1

    公开(公告)日:2014-05-08

    申请号:PCT/US2013/066842

    申请日:2013-10-25

    Abstract: 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a process comprises withdrawing the polymerization product from a loop polymerization reactor, and conveying the withdrawn polymerization product to a separation vessel via a first pressure differential and a second pressure differential. The withdrawn polymerization product may flow through the first pressure differential before flowing through the second pressure differential, and the first pressure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.

    Abstract translation: 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,并且第一压力差可小于第二压力差。

    COMPONENT SEPARATIONS IN POLYMERIZATION
    2.
    发明申请
    COMPONENT SEPARATIONS IN POLYMERIZATION 审中-公开
    聚合中的组分分离

    公开(公告)号:WO2013154907A2

    公开(公告)日:2013-10-17

    申请号:PCT/US2013/035274

    申请日:2013-04-04

    Abstract: 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.

    Abstract translation: 一种在聚合物生产系统中用于组分分离的方法,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,使轻烃流与吸收溶剂体系接触,其中至少一部分来自轻质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。

    DIRECT RECYCLE FRACTIONATION METHOD USING A SWING COLUMN
    5.
    发明申请
    DIRECT RECYCLE FRACTIONATION METHOD USING A SWING COLUMN 审中-公开
    使用旋转柱的直接回归分割方法

    公开(公告)号:WO2004007566A1

    公开(公告)日:2004-01-22

    申请号:PCT/US2003/022198

    申请日:2003-07-17

    Abstract: A process and apparatus for passing a polymerization effluent, comprising solid polymer, unreacted monomer, diluent and minor amounts of contaminants, to a high pressure flash where most of the fluid components are flashed and wherein a slip stream comprising diluent and minor amounts of monomer is separated from the bulk of the flashed fluid components. The slip stream is subjected to olefin removal to give an essentially olefin-free stream for recycle to a catalyst mud preparation area. The bulk of the flashed fluid components are recycled directly back to the polymerization zone without expensive olefin removal, although treatment to remove other contaminants can optionally be performed. The polymer and entrained fluid is passed to a low pressure flash zone where the fluids are flashed off, compressed and joined with the flash from the high pressure flash tank. Because the bulk of the fluids are removed in the high pressure flash, compression and cooling of product fluids prior to recycle is kept to a minimum.

    Abstract translation: 一种将含有固体聚合物,未反应单体,稀释剂和少量污染物的聚合流出物通到高压闪蒸的方法和装置,其中大部分流体组分被闪蒸,并且其中包含稀释剂和少量单体的​​滑流是 与大部分闪烁的流体组分分离。 将滑流进行烯烃除去,得到基本上无烯烃的物流,用于再循环到催化剂泥浆制备区域。 大部分闪蒸的流体组分直接回收到聚合区,而不需要昂贵的烯烃去除,尽管可以任选地进行除去其它污染物的处理。 聚合物和夹带的流体被传递到低压闪蒸区域,其中流体被闪蒸掉,压缩并与来自高压闪蒸罐的闪光接合。 因为大部分流体在高压闪蒸中被除去,所以在再循环之前将产品流体的压缩和冷却保持在最小。

    COMPONENT SEPARATIONS IN POLYMERIZATION
    6.
    发明申请
    COMPONENT SEPARATIONS IN POLYMERIZATION 审中-公开
    聚合中的组分分离

    公开(公告)号:WO2013154907A3

    公开(公告)日:2014-01-03

    申请号:PCT/US2013035274

    申请日:2013-04-04

    Abstract: 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.

    Abstract translation: 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乙烯被吸收溶剂体系吸收,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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