Decreasing Br-reactive contaminants in aromatic streams
    2.
    发明授权
    Decreasing Br-reactive contaminants in aromatic streams 有权
    减少芳香族流中的Br反应性污染物

    公开(公告)号:US06781023B2

    公开(公告)日:2004-08-24

    申请号:US09891672

    申请日:2001-06-25

    IPC分类号: C10G2503

    CPC分类号: C10G67/02 C10G29/16 C10G53/02

    摘要: Bromine reactive hydrocarbon contaminants are removed from aromatic streams by first providing an aromatic feedstream having a negligible diene level. The feedstream is contacted with an acid active catalyst composition under conditions sufficient to remove mono-olefins. An aromatic stream may be pretreated to remove dienes by contacting the stream with clay, hydrogenation or hydrotreating catalyst under conditions sufficient to substantially remove dienes but not mono-olefins.

    摘要翻译: 首先提供具有可忽略的二烯含量的芳族原料流,从芳族物流中除去溴反应性烃污染物。 在足以除去单烯烃的条件下,使原料流与酸活性催化剂组合物接触。 可以预处理芳族物流以通过使物流与粘土,氢化或加氢处理催化剂在足以基本上除去二烯而不是单烯烃的条件下接触来除去二烯。

    Gasoline production by olefin polymerization
    4.
    发明申请
    Gasoline production by olefin polymerization 审中-公开
    汽油生产通过烯烃聚合

    公开(公告)号:US20070185359A1

    公开(公告)日:2007-08-09

    申请号:US11698813

    申请日:2007-01-29

    IPC分类号: C07C2/02 B01J8/04

    摘要: A process unit for the zeolite-catalyzed conversion of light refinery olefins from an FCC unit such as ethylene, propylene, and butylene to gasoline boiling range motor fuels comprises at least two sequential, serially connected reactors connected in parallel to a fractionation section with at one or two fractionators for separating the reactor effluents into product fraction with an optional recycle stream or streams. The configurations according to this scheme allow the adjustment of reactor temperature and/or pressure and/or space velocity to be based on the reactivities of the olefin compounds present in the LPG streams so that the gasoline produced in each reactor will be separated immediately, to reduce over-polymerization of the gasoline in the low severity reactor and to ensure that gasoline formed in the low severity reactor will not be sent to the higher severity reactor e.g. with a higher reactor temperature, where excessive polymerization to undesirable higher molecular with products may take place.

    摘要翻译: 沸石催化的轻质炼油烯烃从FCC装置如乙烯,丙烯和丁烯转化成汽油沸程的发动机燃料的处理单元包括至少两个连续的串联连接的反应器,其与一个分离部分并联连接 或两个分离器,用于将反应器流出物与任选的再循环流或物流分离成产物级分。 根据该方案的配置允许基于LPG流中存在的烯烃化合物的反应性来调节反应器温度和/或压力和/或空间速度,使得在每个反应器中产生的汽油将立即分离, 减少低严重性反应器中汽油的过度聚合,并确保低浓度反应器中形成的汽油不会送到较高级别的反应器,如 具有较高的反应器温度,其中可能发生过度聚合成不期望的较高分子与产物。

    Decreasing bi-reactive contaminants
    5.
    发明授权
    Decreasing bi-reactive contaminants 失效
    降低双反应污染物

    公开(公告)号:US06368496B1

    公开(公告)日:2002-04-09

    申请号:US09017777

    申请日:1998-02-03

    IPC分类号: C10G2904

    CPC分类号: C10G67/02 C10G29/16 C10G53/02

    摘要: Bromine reactive hydrocarbon contaminants are removed from aromatic streams by first providing an aromatic feedstream having a negligible diene level. The feedstream is contacted with an acid active catalyst composition under conditions sufficient to remove mono-olefins. An aromatic stream may be pretreated to remove dienes by contacting the stream with clay, hydrogenation or hydrotreating catalyst under conditions sufficient to substantially remove dienes but not mono-olefins.

    摘要翻译: 首先提供具有可忽略的二烯含量的芳族原料流,从芳族物流中除去溴反应性烃污染物。 在足以除去单烯烃的条件下,使原料流与酸活性催化剂组合物接触。 可以预处理芳族物流以通过使物流与粘土,氢化或加氢处理催化剂在足以基本上除去二烯而不是单烯烃的条件下接触来除去二烯。