Dilute Liquid Phase Alkylation
    31.
    发明申请
    Dilute Liquid Phase Alkylation 有权
    稀液相烷基化

    公开(公告)号:US20110130609A1

    公开(公告)日:2011-06-02

    申请号:US13024602

    申请日:2011-02-10

    Inventor: James R. Butler

    Abstract: Methods of forming ethylbenzene are described herein. In one embodiment, the method includes contacting dilute ethylene with benzene in the presence of an alkylation catalyst to form ethylbenzene, wherein such contact occurs in a liquid phase reaction zone and recovering ethylbenzene from the reaction zone.

    Abstract translation: 本文描述了形成乙苯的方法。 在一个实施方案中,该方法包括在烷基化催化剂存在下使稀乙烯与苯接触以形成乙苯,其中这种接触发生在液相反应区中并从反应区回收乙苯。

    Bitumen/Rubber Compositions Crosslinked with Polythiomorpholines, Polysulfides and/or Mercaptobenzimidazole
    35.
    发明申请
    Bitumen/Rubber Compositions Crosslinked with Polythiomorpholines, Polysulfides and/or Mercaptobenzimidazole 失效
    与聚硫代吗啉,多硫化物和/或巯基苯并咪唑交联的沥青/橡胶组合物

    公开(公告)号:US20090143504A1

    公开(公告)日:2009-06-04

    申请号:US12367303

    申请日:2009-02-06

    CPC classification number: E01C7/18 C08L9/06 C08L81/04 C08L95/00 C08L2666/08

    Abstract: Asphalt and elastomeric polymer compositions crosslinked with mixed polythiomorpholines or at least one alkyl polysulfide can give polymer modified asphalts (PMAs) with improved properties and/or reduced H2S evolution. When at least one alkyl polysulfide is used to completely or partially replace conventional crosslinkers such as S or MBT, mercaptobenzimidazole (MBI) may be optionally used as a co-crosslinker. The use of mixed polythiomorpholines as crosslinkers provide PMAs with better low temperature profiles (BBR m-values). The use of at least one alkyl polysulfide crosslinker gives PMAs with improved PAV-aged DSR results, and reduced H2S evolution. The use of at least one alkyl polysulfide crosslinker together with MBI may give PMAs with improved PAV DSR Fail Temperatures.

    Abstract translation: 用混合多硫代吗啉或至少一种烷基多硫化物交联的沥青和弹性聚合物组合物可以得到具有改进性能和/或降低的H 2 S进化的聚合物改性沥青(PMA)。 当使用至少一种烷基多硫化物来完全或部分替代常规交联剂如S或MBT时,巯基苯并咪唑(MBI)可以任选地用作共交联剂。 使用混合的聚硫代吗啉作为交联剂为PMA提供了更好的低温谱(BBR m值)。 使用至少一种烷基多硫化物交联剂使PMA具有改进的PAV老化的DSR结果,并降低了H2S进化。 使用至少一种烷基多硫化物交联剂与MBI一起可以使PMA具有改进的PAV DSR失败温度。

    Alkylation Process
    38.
    发明申请
    Alkylation Process 审中-公开
    烷基化方法

    公开(公告)号:US20080242906A1

    公开(公告)日:2008-10-02

    申请号:US12119171

    申请日:2008-05-12

    CPC classification number: C07C2/66 C07C6/126 Y02P20/544 C07C15/073

    Abstract: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase in a reaction zone containing a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. A polyethylbenzene is supplied into the reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 20-500. The reaction zone is operated at temperature and pressure conditions in which benzene is in the supercritical phase to cause ethylation of the benzene and the transalkylation of polyethylbenzene and benzene in the presence of the zeolite beta catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated byproducts of no more than 60 wt. % of the ethylbenzene. The alkylation reaction zone is operated under conditions providing a composite byproduct yield of propyl benzene and butyl benzene relative to ethylbenzene, which is no more than one half of the corresponding yield byproduct for zeolite beta promoted with lanthanum. The production of ethylbenzene in the critical phase alkylation reaction zone is attended by recycle of a polyalkylated aromatic component of the reaction product back to the reaction zone.

    Abstract translation: 在包含铈促进沸石β的分子筛芳族烷基化催化剂的反应区中通过苯在临界阶段乙苯化生产乙苯的方法。 将聚乙苯供入反应区并与二氧化硅/氧化铝摩尔比在20-500范围内的铈促进沸石β接触。 反应区在苯处于超临界阶段的温度和压力条件下进行,以在沸石β催化剂存在下引起苯的乙基化和多乙基苯和苯的烷基转移。 生产含有乙苯作为主要产物的烷基化产物,伴随产生不超过60重量%的较重烷基化副产物。 %的乙苯。 烷基化反应区在相对于乙苯提供丙基苯和丁基苯的复合副产物产率的条件下操作,其不超过用镧促进的沸石β的相应产率副产物的一半。 通过将反应产物的多烷基化芳族组分再循环回到反应区,可以在临界相烷基化反应区中生产乙苯。

    Heating hydrocarbon process flow using flameless oxidation burners
    40.
    发明授权
    Heating hydrocarbon process flow using flameless oxidation burners 有权
    使用无焰氧化燃烧器加热烃工艺流程

    公开(公告)号:US07293983B2

    公开(公告)日:2007-11-13

    申请号:US11069354

    申请日:2005-03-01

    Inventor: James R. Butler

    CPC classification number: F23C3/002 F23C2900/99001 Y02E20/342

    Abstract: Hydrocarbon streams are heated uniformly and directly using one or more flameless oxidation burners. Flameless oxidation burners may control the temperature within a range of about 50° C. to reduce the tendency to coking due to localized “hot spots”. The hydrocarbon streams, which may be monomer streams, may pass cross-current (perpendicular) to burners having a longitudinal design or configuration, or may pass parallel to such burners.

    Abstract translation: 使用一个或多个无焰氧化燃烧器均匀且直接地加热碳氢化合物流。 无焰氧化燃烧器可以将温度控制在约50℃的范围内,以减少由于局部“热点”引起的焦化倾向。 可以是单体流的烃流可以将横流(垂直)通过具有纵向设计或构造的燃烧器,或者可以平行于这种燃烧器通过。

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