Oxygenate to olefin manufacture and recovery process
    2.
    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。

    OXYGENATE TO OLEFIN PROCESS
    3.
    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)。

    Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines
    5.
    发明申请
    Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines 有权
    从含氧化合物到烯烃的后淬火流出物蒸气流的液体接触转化成捕获催化剂细粉

    公开(公告)号:US20050027152A1

    公开(公告)日:2005-02-03

    申请号:US10629963

    申请日:2003-07-30

    IPC分类号: C07C1/20 C10G3/00 C07C1/00

    摘要: A process is provided for converting oxygenate to olefins from a fluidized bed reactor which comprises removal of catalyst fines from a quenched vaporous effluent by contacting with a liquid low in catalyst fines content, e.g., oxygenate feedstock, or by-product water from the oxygenates to olefins conversion which is stripped and/or filtered. The process typically comprises: contacting a feedstock comprising oxygenate with a catalyst comprising a molecular sieve under conditions effective to produce a deactivated catalyst having carbonaceous deposits and a product comprising the olefins; separating the deactivated catalyst from the product to provide a separated vaporous product which contains catalyst fines; quenching the separated vaporous product with a liquid medium containing water and catalyst fines, in an amount sufficient for forming a light product fraction comprising light olefins and catalyst fines and a heavy product fraction comprising water, heavier hydrocarbons and catalyst fines; treating the light product fraction by contacting with a liquid substantially free of catalyst fines to provide a light product fraction having reduced catalyst fines content and a liquid fraction of increased fines content; compressing the light product fraction having reduced catalyst fines content; and recovering the light olefins from the compressed light product fraction.

    摘要翻译: 提供了一种从流化床反应器中将含氧化合物转化为烯烃的方法,其中包括通过与催化剂细粉含量较低的液体(例如含氧化合物原料或副产物水从含氧化合物到 烯烃转化,其被汽提和/或过滤。 该方法通常包括:在有效产生具有碳质沉积物的失活催化剂和包含烯烃的产物的条件下,使包含含氧化合物的原料与包含分子筛的催化剂接触; 将失活的催化剂与产物分离以提供含有催化剂细粉的分离的蒸汽产物; 用含有水和催化剂细粉的液体介质淬灭分离的蒸汽产物,其量足以形成包含轻质烯烃和催化剂细粒的轻质产物级分,以及包含水,较重烃和催化剂细粉的重质产物级分; 通过与基本上不含催化剂细粒的液体接触来处理轻质产物级分,以提供具有降低的催化剂细粉含量的轻质产物级分和增加的细粉含量的液体级分; 压缩具有降低的催化剂细粉含量的轻产品级分; 并从压缩轻质产物馏分中回收轻质烯烃。

    Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines

    公开(公告)号:US20060149111A1

    公开(公告)日:2006-07-06

    申请号:US11368662

    申请日:2006-03-06

    IPC分类号: B01J19/00 B01J8/18

    摘要: A process is provided for converting oxygenate to olefins from a fluidized bed reactor which comprises removal of catalyst fines from a quenched vaporous effluent by contacting with a liquid low in catalyst fines content, e.g., oxygenate feedstock, or by-product water from the oxygenates to olefins conversion which is stripped and/or filtered. The process typically comprises: contacting a feedstock comprising oxygenate with a catalyst comprising a molecular sieve under conditions effective to produce a deactivated catalyst having carbonaceous deposits and a product comprising the olefins; separating the deactivated catalyst from the product to provide a separated vaporous product which contains catalyst fines; quenching the separated vaporous product with a liquid medium containing water and catalyst fines, in an amount sufficient for forming a light product fraction comprising light olefins and catalyst fines and a heavy product fraction comprising water, heavier hydrocarbons and catalyst fines; treating the light product fraction by contacting with a liquid substantially free of catalyst fines to provide a light product fraction having reduced catalyst fines content and a liquid fraction of increased fines content; compressing the light product fraction having reduced catalyst fines content; and recovering the light olefins from the compressed light product fraction.

    Integrating a methanol to olefin reaction system with a steam cracking system
    10.
    发明申请
    Integrating a methanol to olefin reaction system with a steam cracking system 审中-公开
    将甲醇与烯烃反应体系与蒸汽裂解系统结合

    公开(公告)号:US20050038304A1

    公开(公告)日:2005-02-17

    申请号:US10642074

    申请日:2003-08-15

    摘要: The present invention provides an integrated system for producing ethylene and propylene from an oxygenate to olefin (OTO) reaction system and a steam cracking system. In a preferred embodiment, at least a portion of an effluent stream from a steam cracking furnace is combined with at least a portion of an effluent stream from an OTO reaction system. Preferably the combined effluent stream is processed by one or more quench units, compression units, and/or fractionation columns. By integrating a steam cracking system with an OTO reaction system, equipment count can be reduced at a significant commercial savings. Compressor efficiency per pound of ethylene and propylene can also be advantageously increased over conventional steam cracking systems. Moreover, the amount of pollutants produced per pound of ethylene and propylene produced can be significantly reduced over the amount of pollutants produced per pound of ethylene and propylene produced in a steam cracking system.

    摘要翻译: 本发明提供了一种用于从含氧物到烯烃(OTO)反应系统和蒸汽裂解系统生产乙烯和丙烯的集成系统。 在优选的实施方案中,来自蒸汽裂解炉的至少一部分流出物流与来自OTO反应系统的至少一部分流出物流合并。 优选地,组合的流出物流由一个或多个骤冷单元,压缩单元和/或分馏塔进行处理。 通过将蒸汽裂解系统与OTO反应系统集成,可以显着降低设备数量。 与常规蒸汽裂解系统相比,每磅乙烯和丙烯的压缩机效率也可以有利地提高。 此外,生产的乙烯和丙烯每磅产生的污染物的量可以比蒸汽裂解系统中生产的每磅乙烯和丙烯产生的污染物量大大减少。