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    PROCESS AND APPARATUS FOR REDUCING TAKE-OFF VALVE PLUGGING IN A POLYMERIZATION PROCESS
    1.
    发明申请
    PROCESS AND APPARATUS FOR REDUCING TAKE-OFF VALVE PLUGGING IN A POLYMERIZATION PROCESS 审中-公开
    在聚合过程中减少切断阀插入的过程和装置

    公开(公告)号：WO2004024781A8

    公开(公告)日：2004-06-03

    申请号：PCT/US0328659

    申请日：2003-09-12

    Applicant: CHEVRON PHILLIPS CHEMICAL CO

    Inventor： HOTTOVY JOHN D ,  ZELLERS DALE A ,  HAGENSON RANDY L

    IPC: C08F2/00 ,  C08F2/14 ,  C08F10/02 ,  C08F110/02

    CPC classification number: C08F10/02 ,  C08F110/02 ,  C08F2/01 ,  C08F2/14

    Abstract: A slurry polymerization process removes a portion of the fluid slurry without using a settling leg or a continuous take-off. The process uses a reactor take-off valve that is periodically fully closed and fully opened such that the withdrawn slurry is removed from the reactor in a discontinuous manner. The regular, periodic full closing and full opening of the take-off valve reduces instances of polymer plugging the take-off valve. In another aspect of the invention, a take-off valve is throttled in a repetitive pattern to reduce plugging of the take-off valve.

    Abstract translation: 淤浆聚合方法在不使用沉降腿或连续起飞的情况下除去一部分流体浆液。 该方法使用周期性地完全关闭并完全打开的反应器排出阀，使得排出的浆料以不连续的方式从反应器中移出。 起飞阀的常规，周期性全关闭和全开，减少了聚合物堵塞起飞阀的情况。 在本发明的另一方面，一个抽出阀以重复的模式节流，以减少排出阀的堵塞。

    METHOD AND SYSTEM FOR ENERGY GENERATION IN A CHEMICAL PLANT BY UTILIZING FLARE GAS
    3.
    发明申请
    METHOD AND SYSTEM FOR ENERGY GENERATION IN A CHEMICAL PLANT BY UTILIZING FLARE GAS 审中-公开
    利用瓦斯燃料在化工厂生产能源的方法与系统

    公开(公告)号：WO2011162960A2

    公开(公告)日：2011-12-29

    申请号：PCT/US2011039695

    申请日：2011-06-09

    Applicant: CHEVRON PHILLIPS CHEMICAL CO ,  HOTTOVY JOHN D

    Inventor： HOTTOVY JOHN D

    IPC: F01K23/06

    CPC classification number: F23G7/06 ,  F02B43/10 ,  F02C3/28 ,  F02C9/40 ,  F05D2220/60 ,  F22B1/18 ,  Y02E20/12 ,  Y02T10/32

    Abstract: The present techniques provide systems and methods for recovering energy from flare gases in chemical plants and refineries. The systems use an engine to burn a portion of gas diverted from the flare system. The engine may be a reciprocating engine, or a burner in a boiler system, among others. The power generated by burning the flare gas is then used to power an energy recovery device. The energy recovery device may be an electrical generator, a compressor, or a steam boiler, among others

    Abstract translation: 本技术提供用于在化工厂和炼油厂中从火炬气中回收能量的系统和方法。 系统使用发动机来燃烧从火炬系统转向的一部分气体。 发动机可以是往复式发动机，也可以是锅炉系统中的燃烧器等。 然后通过燃烧火炬气产生的电力用于为能量回收装置供电。 能量回收装置可以是发电机，压缩机或蒸汽锅炉等

    METHOD AND SYSTEM TO REDUCE POLYMERIZATION REACTOR FOULING
    4.
    发明申请
    METHOD AND SYSTEM TO REDUCE POLYMERIZATION REACTOR FOULING 审中-公开
    减少聚合反应器的方法和系统

    公开(公告)号：WO2006026224A3

    公开(公告)日：2009-07-02

    申请号：PCT/US2005029784

    申请日：2005-08-23

    Applicant: CHEVRON PHILLIPS CHEMICAL CO

    Inventor： SHAW BENJAMIN M ,  HOTTOVY JOHN D ,  ZELLERS DALE A

    IPC: B01J19/00 ,  B01J19/18 ,  B01J19/24

    CPC classification number: C08F10/02 ,  B01J19/0006 ,  B01J19/002 ,  B01J19/1837 ,  B01J2208/00734 ,  B01J2219/00063 ,  B01J2219/00094 ,  B01J2219/00191 ,  B01J2219/00247 ,  B01J2219/00254 ,  C08F110/02 ,  C08F2400/02 ,  Y02P20/582 ,  Y10S526/901 ,  C08F2/002 ,  C08F2/14 ,  C08F2/00 ,  C08F2500/24

    Abstract: Techniques are provided for the prevention of reactor fouls in polymerization reactors. A technique is provided for limiting polymer particle size to prevent or limit the occurrence of reactor fouls associated with large polymer particles. A technique is also provided for measuring reactor temperature at one or more local hot spots of the reactor and for controlling the polymerization reaction based upon these temperature measurements. In particular, control of the reaction may be based on the hottest temperature, such that the hottest temperature in the reactor is maintained within the reactor fouling curve. A technique is also discussed for predicting reactor fouls by using statistical analyses, such as periodogram analysis, to identify leading indicators of impending fouls. Preventative measures may be performed upon identification of such a leading indicator. In addition, the statistical analyses may be used to identify catalysts having less propensity to foul.

    Abstract translation: 提供了防止聚合反应堆中反应堆犯规的技术。 提供了一种限制聚合物粒度以防止或限制与大聚合物颗粒相关的反应堆犯规的发生的技术。 还提供了用于测量反应器的一个或多个局部热点处的反应器温度并基于这些温度测量来控制聚合反应的技术。 特别地，反应的控制可以基于最热的温度，使得反应器中最热的温度保持在反应器结垢曲线内。 还讨论了一种通过使用统计分析（如周期图分析）来确定即将发生的犯规的领先指标来预测反应堆犯规的技术。 在确定此类领先指标时，可采取预防措施。 此外，统计学分析可用于鉴定具有较小的污染倾向的催化剂。

    COMPONENT SEPARATIONS IN POLYMERIZATION
    5.
    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

    Applicant: CHEVRON PHILLIPS CHEMICAL CO ,  KUFELD SCOTT E ,  HOTTOVY JOHN D ,  CHANG AI-FU

    Inventor： KUFELD SCOTT E ,  HOTTOVY JOHN D ,  CHANG AI-FU

    IPC: B01D53/00 ,  C08F2/00 ,  C08F2/01 ,  C08F6/00 ,  C08F10/02 ,  C08J11/02

    CPC classification number: C08F2/001 ,  C08F6/001 ,  C08F110/02 ,  C08J11/02 ,  C08J2323/06 ,  C08L23/04 ,  C08F10/02 ,  C08F2/14

    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。

    MONOVINYLARENE/CONJUGATED DIENE COPOLYMERS
    6.
    发明申请
    MONOVINYLARENE/CONJUGATED DIENE COPOLYMERS 审中-公开
    单乙烯/共聚二烯共聚物

    公开(公告)号：WO2005047355A3

    公开(公告)日：2005-09-09

    申请号：PCT/US2004037279

    申请日：2004-11-05

    Applicant: CHEVRON PHILLIPS CHEMICAL CO ,  STACY NATHAN E ,  NASH LARRY L ,  HOTTOVY JOHN D

    Inventor： STACY NATHAN E ,  NASH LARRY L ,  HOTTOVY JOHN D

    IPC: C08F297/04 ,  C08L53/02

    CPC classification number: C08L53/02 ,  C08F297/04 ,  C08F297/046 ,  C08L53/00

    Abstract: We disclose a monovinylarene/conjugated diene block copolymer, comprising: (i) a random (conjugated dieneX/monovinylareney)m block, wherein x is about 2.5 wt% to about 10 wt%, y is from about 90 wt% to about 97.5 wt%, and x + y is about 97.5 wt% to 100 wt%; and (ii) a (conjugated dime)n block; wherein n is from about 20 wt% to about 30 wt%, m is from about 70 wt% to about 80 wt%, and m + n is from about 90 wt% to 100 wt%. We also disclose a method of forming the block copolymer and a method for fabricating an article from the block copolymer. The block copolymer typically exhibits a Tg at least about 10°C less than the Tg of a reference polymer differing only in that x is about 0 wt% and y is about 100 wt%.

    Abstract translation: 我们公开了单乙烯基芳烃/共轭二烯嵌段共聚物，其包含：（i）无规（共轭二烯X /单乙烯基芳烃）m嵌段，其中x为约2.5重量％至约10重量％，y为约90重量％至约97.5重量％ ％，x + y为约97.5wt％至100wt％; 和（ii）（共轭角质）n嵌段; 其中n为约20重量％至约30重量％，m为约70重量％至约80重量％，m + n为约90重量％至100重量％。 我们还公开了形成嵌段共聚物的方法和由嵌段共聚物制造制品的方法。 嵌段共聚物通常表现出比参考聚合物的Tg低至少约10℃的Tg，其仅在x为约0重量％且y为约100重量％时不同。

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