OXYGENATE TO OLEFIN PROCESS
    1.
    发明申请
    OXYGENATE TO OLEFIN PROCESS 有权
    氧气过滤器

    公开(公告)号:US20050215840A1

    公开(公告)日:2005-09-29

    申请号:US10807818

    申请日:2004-03-24

    摘要: The invention relates to a process for converting an oxygenate feedstock into an olefin product stream comprising (a) contacting an oxygenate feedstock with a molecular sieve catalyst in a reactor under conditions effective to convert the feedstock into an olefin product stream and to form carbonaceous deposits on the catalyst; (b) contacting at least a portion of the catalyst having said carbonaceous deposits with an oxygen containing gas under conditions effective to obtain a regenerated catalyst having a reduced carbonaceous deposit level and having an increased molecular oxygen content; (c) removing at least 60% by volume of said molecular oxygen from the regenerated catalyst based upon the total volume of molecular oxygen; (d) returning said regenerated catalyst to said reactor; and (e) repeating steps (a)-(d).

    摘要翻译: 本发明涉及一种将含氧化合物原料转化成烯烃产物流的方法,该方法包括(a)在有效将原料转化成烯烃产物流并形成碳质沉积物的条件下,使反应器中的含氧化合物原料与分子筛催化剂接触 催化剂; (b)在有效获得具有降低的碳沉积物水平并且具有增加的分子氧含量的再生催化剂的条件下使至少一部分具有所述碳质沉积物的催化剂与含氧气体接触; (c)基于分子氧的总体积从再生催化剂中除去至少60体积%的所述分子氧; (d)将所述再生催化剂返回到所述反应器; 和(e)重复步骤(a) - (d)。

    Oxygenate to olefin manufacture and recovery process
    4.
    发明申请
    Oxygenate to olefin manufacture and recovery process 有权
    氧化烯与烯烃的制备和回收过程

    公开(公告)号:US20060135632A1

    公开(公告)日:2006-06-22

    申请号:US11097809

    申请日:2005-04-01

    IPC分类号: C07C27/26

    CPC分类号: C07C1/20 C07C11/02

    摘要: This invention is directed to methods for forming an olefin stream from a methanol stream. A lower grade methanol, such as chemical grade or crude methanol, can be used as feed to form the olefin stream. The process uses a relatively simple distillation type step to vaporize a portion of the methanol feed stream and send the resulting vapor stream to a reaction unit to form the olefin stream. In addition, the invention provides the ability to operate the downstream recovery units with reduced fouling or plugging due to the presence of fine solids components.

    摘要翻译: 本发明涉及从甲醇流形成烯烃流的方法。 低级甲醇如化学级或粗甲醇可用作进料以形成烯烃流。 该方法使用相对简单的蒸馏步骤来蒸发一部分甲醇进料流并将所得蒸气流送至反应单元以形成烯烃流。 此外,本发明提供了由于存在细固体组分而使下游回收单元具有减少的结垢或堵塞的能力。

    Process of making polypropylene from intermediate grade propylene
    8.
    发明申请
    Process of making polypropylene from intermediate grade propylene 有权
    从中级丙烯制造聚丙烯的工艺

    公开(公告)号:US20050187358A1

    公开(公告)日:2005-08-25

    申请号:US10786988

    申请日:2004-02-25

    IPC分类号: C08F110/06 C08F2/00

    CPC分类号: C08F110/06 C08F6/001 C08F2/00

    摘要: This invention concerns using an intermediate grade propylene stream as feed to a polypropylene forming reaction system. The intermediate grade propylene stream is preferably recovered form the olefin product of an oxygenate to olefins reaction process, and low in dimethyl ether content.

    摘要翻译: 本发明涉及使用中等级丙烯料流作为聚丙烯形成反应体系的进料。 中等级丙烯流优选从含氧化合物到烯烃反应过程的烯烃产物回收,二甲醚含量低。

    Heat-integrated high pressure system for separation of byproducts from an olefin stream
    9.
    发明授权
    Heat-integrated high pressure system for separation of byproducts from an olefin stream 失效
    用于从烯烃流中分离副产物的热集成高压系统

    公开(公告)号:US06864401B2

    公开(公告)日:2005-03-08

    申请号:US10207414

    申请日:2002-07-29

    申请人: Cor Van Egmond

    发明人: Cor Van Egmond

    摘要: The present invention is a heat-integrated process for obtaining an ethylene and propylene enriched stream from an oxygenate to olefin reactor. The process comprises providing an effluent stream from an oxygenate to olefins reactor. The effluent stream comprises ethylene, propylene and one or more byproducts selected from the group consisting of propane, methyl acetylene, propadiene, dimethyl ether, acetaldyhyde and butylene. The process further includes quenching the effluent stream with the quench medium to provide an olefin stream. The olefin stream is separated into a heavy fraction and a remaining fraction. The remaining fraction is directed to a distillation column which separates the remaining fraction into a first fraction comprising a majority of both ethylene and a propylene and a second fraction comprising at least a majority of one or more heavier fraction. The bottoms of the distillation column is reboiled by the quench medium. The separation step allows the bottoms of the distillation column to be reboiled at a lower temperature.

    摘要翻译: 本发明是用于从含氧化合物到烯烃反应器获得富含乙烯和丙烯的物流的热集成方法。 该方法包括提供从含氧化合物到烯烃反应器的流出物流。 流出物流包含乙烯,丙烯和一种或多种选自丙烷,甲基乙炔,丙二烯,二甲醚,乙缩醛和丁烯的副产物。 该方法还包括用骤冷介质猝灭流出物流以提供烯烃流。 将烯烃流分离成重馏分和剩余馏分。 剩余部分被引导到蒸馏塔,蒸馏塔将剩余部分分离成包含大部分乙烯和丙烯的第一馏分,以及包含至少大部分一个或多个较重馏分的第二馏分。 蒸馏塔的底部通过骤冷介质再沸腾。 分离步骤允许蒸馏塔的底部在较低温度下再沸腾。