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23 条记录 (耗时 0.021 秒)

    Selectively removing undesirably sized catalyst particles from a reaction system
    1.
    发明申请
    Selectively removing undesirably sized catalyst particles from a reaction system 有权
    从反应体系中选择性地除去不期望的尺寸的催化剂颗粒

    公开(公告)号：US20050067326A1

    公开(公告)日：2005-03-31

    申请号：US10656673

    申请日：2003-09-05

    申请人： Stephen Vaughn ,  Kenneth Clem ,  Keith Kuechler ,  James Lattner

    发明人： Stephen Vaughn ,  Kenneth Clem ,  Keith Kuechler ,  James Lattner

    IPC分类号： B01J8/00 ,  C07C1/20 ,  C10G3/00 ,  B07B4/00 ,  B07B7/00 ,  B07B13/00

    CPC分类号： B01J8/0065 ,  B01J8/0055 ,  C07C1/20 ,  C10G3/49 ,  C10G3/62 ,  C10G2300/4093 ,  C10G2400/20 ,  Y02P30/20 ,  C07C11/02

    摘要： The present invention provides various processes for selectively removing undesirably sized catalyst particles from a reaction system. In one embodiment, a plurality of catalyst particles, having a first median particle diameter, is withdrawn from the reaction system and is directed to a separation unit such as a counter flow cyclone separator. In the separation unit, the particles are separated into a small catalyst stream and a large catalyst stream, the small catalyst stream having a second median particle diameter less than the first median particle diameter, and the large catalyst stream having a third median particle diameter greater than the first median particle diameter. At least a portion of the small or large catalyst stream is then directed back to the reaction system in order to maintain a desirable particle size distribution therein.

    摘要翻译： 本发明提供了用于从反应体系中选择性除去不期望的尺寸的催化剂颗粒的各种方法。 在一个实施方案中，具有第一中值粒径的多个催化剂颗粒从反应体系中排出并被引导至分离单元如逆流旋风分离器。 在分离单元中，将颗粒分离成小的催化剂流和大的催化剂流，小的催化剂流具有小于第一中值粒径的第二中值粒径，并且大的催化剂流具有较大的第三中值粒径 比第一个中值粒径。 然后将至少一部分小或大的催化剂流引导回反应体系，以便在其中保持所需的粒度分布。

    Catalyst pretreatment with dimethyl ether in an oxygenate to olefins reaction system
    2.
    发明申请
    Catalyst pretreatment with dimethyl ether in an oxygenate to olefins reaction system 失效
    催化剂预处理用二甲醚在含氧化合物到烯烃反应体系中

    公开(公告)号：US20050101815A1

    公开(公告)日：2005-05-12

    申请号：US10712668

    申请日：2003-11-12

    申请人： Teng Xu ,  Kenneth Clem ,  Keith Kuechler

    发明人： Teng Xu ,  Kenneth Clem ,  Keith Kuechler

    IPC分类号： B01J29/85 ,  C07C1/20 ,  C07C1/00

    CPC分类号： C07C1/20 ,  B01J29/85 ,  C07C2529/84 ,  C07C2529/85 ,  Y02P20/52 ,  Y02P30/42 ,  C07C11/06 ,  C07C11/04 ,  C07C11/02

    摘要： This invention relates to processes for converting oxygenates to olefins and olefins to polyolefins. The processes include a step of pretreating molecular sieve used in the conversion of oxygenate to olefin with a dimethyl ether composition. Fresh or regenerated molecular sieve, which is low in carbon content, is contacted or pretreated with the dimethyl ether composition to form a hydrocarbon co-catalyst within the pore structure of the molecular sieve, and the pretreated molecular sieve containing the co-catalyst is used to convert oxygenate to a lighter olefin product.

    摘要翻译： 本发明涉及将含氧化合物转化为烯烃和烯烃到聚烯烃的方法。 该方法包括用二甲基醚组合物预处理用于将含氧化合物转化为烯烃的分子筛的步骤。 碳含量低的新鲜或再生分子筛与二甲醚组合物接触或预处理，以在分子筛的孔结构内形成烃助催化剂，并使用含有助催化剂的预处理分子筛 将含氧化合物转化为较轻的烯烃产物。

    Catalyst pretreatment with C4-C7 olefins in an oxygenate to olefins reaction system
    3.
    发明申请
    Catalyst pretreatment with C4-C7 olefins in an oxygenate to olefins reaction system 失效
    催化剂在含氧化合物到烯烃反应体系中用C4-C7烯烃预处理

    公开(公告)号：US20050101816A1

    公开(公告)日：2005-05-12

    申请号：US10712952

    申请日：2003-11-12

    申请人： Teng Xu ,  Nicolas Coute ,  Kenneth Clem ,  Keith Kuechler

    发明人： Teng Xu ,  Nicolas Coute ,  Kenneth Clem ,  Keith Kuechler

    IPC分类号： B01J29/85 ,  C07C1/20 ,  C07C1/00

    CPC分类号： C07C1/20 ,  B01J29/85 ,  C07C2529/84 ,  C07C2529/85 ,  Y02P30/42 ,  C07C11/02 ,  C07C11/08

    摘要： This invention relates to processes for converting oxygenates to olefins that include a step of pretreating molecular sieve used in the conversion reaction with a C4-C7 olefin composition, which contains one or more C4-C7 olefins. Fresh or regenerated molecular sieve, which is low in carbon content, is contacted or pretreated with the olefin composition to form a hydrocarbon co-catalyst within the pore structure of the molecular sieve, and the pretreated molecular sieve containing the co-catalyst is used to convert oxygenate to a lighter olefin product.

    摘要翻译： 本发明涉及将含氧化合物转化为烯烃的方法，其包括用C 4 -C 7烯烃组合物预处理转化反应中使用的分子筛的步骤，其中含有一个 或更多的C 4 -C 7烯烃。 碳含量低的新鲜或再生分子筛与烯烃组合物接触或预处理，以在分子筛的孔结构内形成烃助催化剂，并将含有助催化剂的预处理分子筛用于 将含氧化合物转化为较轻的烯烃产物。

    Multiple riser reactor with centralized catalyst return
    4.
    发明申请
    Multiple riser reactor with centralized catalyst return 有权
    具有集中催化剂返回的多个提升管反应器

    公开(公告)号：US20060229483A1

    公开(公告)日：2006-10-12

    申请号：US11452808

    申请日：2006-06-14

    申请人： Keith Kuechler ,  James Lattner ,  Nicolas Coute ,  Jeffrey Smith ,  Justin Krieger

    发明人： Keith Kuechler ,  James Lattner ,  Nicolas Coute ,  Jeffrey Smith ,  Justin Krieger

    IPC分类号： C07C1/00 ,  B01J8/18

    CPC分类号： C07C51/252 ,  B01J8/0055 ,  B01J8/388 ,  C07C1/20 ,  C10G3/45 ,  C10G3/49 ,  C10G3/62 ,  C10G11/18 ,  C10G2300/1011 ,  C10G2300/1022 ,  C10G2300/1037 ,  C10G2300/4056 ,  C10G2400/02 ,  C10G2400/20 ,  Y02P30/20 ,  Y10S585/921 ,  Y10S585/922 ,  Y10S585/923 ,  Y10S585/924 ,  Y10S585/926 ,  C07C57/04

    摘要： The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and optionally a center axis extending therebetween. The apparatus also includes a separation zone having a plurality of inlets, each inlet not being oriented along the center axes of the riser reactors, the separation zone being provided to separate the catalyst from products of a reaction conducted in the hydrocarbon conversion apparatus. A plurality of deviating members are also provided, each deviating member being in fluid communication between the second end of a respective riser reactor and a respective inlet of the separation zone. The apparatus also includes a catalyst retention zone provided to contain catalyst, which is fed to the riser reactors. A catalyst return is in fluid communication between the separation zone and the catalyst retention zone.

    摘要翻译： 本发明涉及烃转化装置和方法。 该设备包括以下：多个提升管反应器，每个提升管反应器各自具有供给催化剂的第一端，催化剂可以从其中排出的第二端，以及可选地在其间延伸的中心轴线。 该装置还包括具有多个入口的分离区，每个入口不沿着提升管反应器的中心轴定向，分离区被提供以将催化剂与在烃转化装置中进行的反应产物分离。 还提供了多个偏离构件，每个偏离构件在相应提升管反应器的第二端和分离区的相应入口之间流体连通。 该装置还包括提供用于容纳催化剂的催化剂保留区，催化剂被供给至提升管反应器。 催化剂返回在分离区和催化剂保留区之间流体连通。

    Recycling oxygenate-rich streams in oxygenate-to-olefin processes
    7.
    发明申请
    Recycling oxygenate-rich streams in oxygenate-to-olefin processes 有权
    在含氧化合物到烯烃过程中循环富含氧化氢的物流

    公开(公告)号：US20050113623A1

    公开(公告)日：2005-05-26

    申请号：US10720505

    申请日：2003-11-24

    申请人： Keith Kuechler ,  Jeffrey Brinen ,  James Lattner ,  Allen Gawlik

    发明人： Keith Kuechler ,  Jeffrey Brinen ,  James Lattner ,  Allen Gawlik

    IPC分类号： C07C1/20 ,  C07C1/00 ,  B01J8/04

    CPC分类号： C07C1/20 ,  Y02P30/42 ,  C07C11/06 ,  C07C11/04 ,  C07C11/02

    摘要： A process and apparatus are provided for converting oxygenate to olefins which comprises: contacting a feedstock comprising oxygenate with a catalyst comprising a molecular sieve under conditions effective to produce a vaporous product comprising the olefins, water and unreacted oxygenate; condensing the vaporous product to provide a liquid stream rich in the water and unreacted oxygenate, and an olefins-rich vapor stream; introducing at least part of the liquid stream to a feed tray in a fractionation tower which provides an oxygenate-rich overhead product and a water-rich liquid bottoms product; providing a liquid, oxygenate-rich stream comprising at least about 20 wt % oxygenate above the feed tray; and passing the olefins-rich vapor stream through a recovery train to recover at least some of the olefins.

    摘要翻译： 提供了将含氧化合物转化为烯烃的方法和装置，其包括：在有效产生包含烯烃，水和未反应的含氧化合物的蒸气产物的条件下，使包含含氧化合物的原料与包含分子筛的催化剂接触; 冷凝蒸汽产物以提供富含水和未反应的含氧化合物的液体物流和富含烯烃的蒸汽流; 将至少部分液体物流引入分馏塔中的进料塔中，所述分馏塔提供富氧富含塔顶馏出物和富含水的液体塔底产物; 提供在所述进料盘上方含有至少约20重量％含氧化合物的液体富含氧化物流; 并使富含烯烃的蒸气流通过回收馏分以回收至少一些烯烃。