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13 条记录 (耗时 0.019 秒)

    Method of purifying hydrocarbons and regeneration of adsorbents used therein
    4.
    发明授权
    Method of purifying hydrocarbons and regeneration of adsorbents used therein 有权
    烃的净化方法和其中使用的吸附剂的再生

    公开(公告)号：US08262773B2

    公开(公告)日：2012-09-11

    申请号：US11920824

    申请日：2006-05-23

    申请人： P. Scott Northrop ,  Francis S. Wu ,  Margaret Wu, legal representative ,  Narasimhan Sundaram

    发明人： P. Scott Northrop ,  Francis S. Wu ,  Narasimhan Sundaram

    IPC分类号： B01D53/04 ,  C10L3/06

    CPC分类号： B01D53/0423 ,  B01D2253/10 ,  B01D2256/24 ,  B01D2257/80 ,  B01D2258/06 ,  B01D2259/4009 ,  B01D2259/41 ,  B01D2259/4146 ,  C10G25/00 ,  C10G25/05 ,  C10G25/12 ,  C10G2300/1025 ,  C10G2300/201 ,  C10L3/10

    摘要： An improved method is provided for removing contaminants from a hydrocarbon stream, such as a stream of raw natural gas. The contaminated hydrocarbon stream is passed through a first adsorbent bed containing molecular sieves to adsorb contaminants on the molecular sieves, thereby removing at least some of the contaminants from the hydrocarbon stream. The contaminated hydrocarbon stream may optionally be passed through a second adsorbent bed containing a desiccant material other than molecular sieves. The molecular sieves are regenerated using a wet regeneration process in which both the water content and temperature of the regeneration fluid stream are staged. The molecular sieves and the desiccant material can also be regenerated by contacting the desiccant material with a regeneration fluid stream comprising water to adsorb at least a portion of the water onto the desiccant material, thereby forming a regeneration fluid stream that is at least partially dried and in contact with a desiccant material that is at least partially hydrated. The hydrated desiccant material is heated to release adsorbed water into the partially dried regeneration fluid stream while such regeneration fluid stream is passed through the molecular sieves to desorb and remove at least a portion of the contaminants adsorbed on the molecular sieves. A method for producing liquefied natural gas employing such improved method is also disclosed.

    摘要翻译： 提供了一种改进的方法来从烃流中除去污染物，例如原始天然气流。 污染的烃流通过含有分子筛的第一吸附剂床，以吸附分子筛上的污染物，从而从烃流中除去至少一些污染物。 污染的烃流可以任选地通过含有除分子筛之外的干燥剂材料的第二吸附床。 使用湿式再生方法再生分子筛，其中再生流体流的水含量和温度均上升。 分子筛和干燥剂材料也可以通过使干燥剂材料与包含水的再生流体流接触来再生，以将至少一部分水吸附到干燥剂材料上，从而形成至少部分干燥的再生流体流， 与至少部分水合的干燥剂材料接触。 加热水合干燥剂材料以将吸附的水释放到部分干燥的再生流体流中，同时使这种再生流体流通过分子筛解吸并除去吸附在分子筛上的至少一部分污染物。 还公开了使用这种改进方法生产液化天然气的方法。

    Polyolefins from non-conventional feeds
    8.
    发明申请
    Polyolefins from non-conventional feeds 有权
    来自非常规饲料的聚烯烃

    公开(公告)号：US20070123659A1

    公开(公告)日：2007-05-31

    申请号：US11291001

    申请日：2005-11-30

    申请人： Margaret Wu ,  Norman Yang ,  Anatoly Kramer

    发明人： Margaret Wu ,  Norman Yang ,  Anatoly Kramer

    IPC分类号： C08C19/02

    CPC分类号： C10M107/10 ,  C10G69/126 ,  C10M2205/0285 ,  C10N2230/08

    摘要： Polyolefins made in accordance with the present invention are produced by polymerizing an unsaturated olefin or combination of unsaturated olefins to produce an unsaturated polyolefin, isomerizing the unsaturated polyolefin in the presence of an acid catalyst under conditions to produce a substantially unsaturated-isomerized polyolefin, and hydrogenating the unsaturated-isomerized polyolefin to produce a saturated isomerized polyolefin. A lube oil comprising the inventive saturated isomerized polyolefin is also disclosed.

    摘要翻译： 根据本发明制备的聚烯烃通过使不饱和烯烃或不饱和烯烃的组合聚合以制备不饱和聚烯烃，在酸催化剂存在下，在产生基本上不饱和异构化的聚烯烃的条件下异构化不饱和聚烯烃，并氢化 不饱和异构化的聚烯烃以产生饱和异构化的聚烯烃。 还公开了包含本发明的饱和异构化聚烯烃的润滑油。