Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines
    11.
    发明授权
    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:US07396513B2

    公开(公告)日:2008-07-08

    申请号:US11368662

    申请日:2006-03-06

    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。

    Integration of a methanol synthesis system with a methanol to olefin reaction system
    15.
    发明授权
    Integration of a methanol synthesis system with a methanol to olefin reaction system 失效
    将甲醇合成系统与甲醇整合到烯烃反应体系中

    公开(公告)号:US07151198B2

    公开(公告)日:2006-12-19

    申请号:US10403271

    申请日:2003-03-28

    申请人: Cor F. Van Egmond

    发明人: Cor F. Van Egmond

    IPC分类号: C07C1/02 C07C1/04 C07C1/06

    摘要: Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate components from the respective methanol synthesis system and MTO reaction system. By providing a shared separation system, the number of separation units in an integrated methanol/MTO reaction system may be advantageously reduced.

    摘要翻译: 公开了在一体化甲醇合成/ MTO反应体系中制备轻质烯烃的方法。 该集成系统实现了一种共用的分离系统,用于从相应的甲醇合成系统和MTO反应系统中分离含氧组分。 通过提供共享的分离系统,可以有利地减少集成的甲醇/ MTO反应系统中的分离单元的数量。

    Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines
    17.
    发明授权
    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:US07038102B2

    公开(公告)日:2006-05-02

    申请号:US10629963

    申请日:2003-07-30

    IPC分类号: C07C1/00 C07C7/00

    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。

    Formation-tailored method and apparatus for uniformly heating long
subterranean intervals at high temperature
    18.
    发明授权
    Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 失效
    用于在高温下均匀加热长的地下间隔的形成方法和装置

    公开(公告)号:US4570715A

    公开(公告)日:1986-02-18

    申请号:US597764

    申请日:1984-04-06

    CPC分类号: E21B23/14 E21B19/22 E21B36/04

    摘要: Long intervals of subterranean earth formations are heated at high temperatures for long times with an electrical heater containing spoolable, steel sheathed, mineral insulated cables which have high electrical conductivities, enabling them to heat the earth formations at a substantially uniform rate of more than about 100 watts per foot at temperatures between about 600.degree. and 1000.degree. C., with a pattern of localized electrical resistances which are correlated with the heat conductivities of the earth formations and the heat stabilities of materials providing power and support for the heater.

    摘要翻译: 长时间的地下地层在高温下长时间被加热,电加热器含有可缠绕,钢制护套,具有高电导率的矿物绝缘电缆,使得它们以大于约100的基本均匀的速率加热地层 在600〜1000℃的温度范围内,以每英尺为单位的瓦特,具有与地层热导率相关的局部电阻图案,以及为加热器提供动力和支撑的材料的热稳定性。

    Oxygenate to olefin manufacture and recovery process
    19.
    发明授权
    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:US07879920B2

    公开(公告)日:2011-02-01

    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。