Rejuvenating deactivated molecular sieve
    1.
    发明授权
    Rejuvenating deactivated molecular sieve 有权
    复活失活分子筛

    公开(公告)号:US07754933B2

    公开(公告)日:2010-07-13

    申请号:US11807450

    申请日:2007-05-29

    IPC分类号: C07C1/00 B01J21/20 B01J38/02

    摘要: This invention is directed to a method of rejuvenating a molecular sieve that has decreased catalytic activity as a result of contact with moisture, and a method of using the rejuvenated catalyst to make an olefin product from methanol feed. The molecular sieve can be rejuvenated by heating at a rate sufficient to increase the catalytic activity of the molecular sieve. The molecular sieve is considered to be rejuvenated when the molecular sieve has a CMCPS that is increased by at least 5% relative to that at a heat rate basis of 40° C./min over a temperature range of from 25° C. to 475° C.

    摘要翻译: 本发明涉及一种由于与水分接触而使具有降低的催化活性的分子筛再生的方法,以及使用再生催化剂从甲醇进料制备烯烃产物的方法。 分子筛可以通过以足以增加分子筛的催化活性的速度加热来回复。 当分子筛具有相对于在25℃至475℃的温度范围内以40℃/分钟的热速率升高至少5%的CMCPS时,分子筛被认为是恢复活力的 C。

    Rejuvenating deactivated molecular sieve
    2.
    发明申请
    Rejuvenating deactivated molecular sieve 有权
    复活失活分子筛

    公开(公告)号:US20080015402A1

    公开(公告)日:2008-01-17

    申请号:US11807450

    申请日:2007-05-29

    IPC分类号: B01J38/02 C07C21/02

    摘要: This invention is directed to a method of rejuvenating a molecular sieve that has decreased catalytic activity as a result of contact with moisture, and a method of using the rejuvenated catalyst to make an olefin product from methanol feed. The molecular sieve can be rejuvenated by heating at a rate sufficient to increase the catalytic activity of the molecular sieve. The molecular sieve is considered to be rejuvenated when the molecular sieve has a CMCPS that is increased by at least 5% relative to that at a heat rate basis of 40° C./min over a temperature range of from 25° C. to 475° C.

    摘要翻译: 本发明涉及一种由于与水分接触而使具有降低的催化活性的分子筛再生的方法,以及使用再生催化剂从甲醇进料制备烯烃产物的方法。 分子筛可以通过以足以增加分子筛的催化活性的速度加热来回复。 当分子筛的CMCPS相对于在25℃至475℃的温度范围内以40℃/分钟的速率升高至少5%时,分子筛被认为是复原的。 C。

    Multiple riser reactor with centralized catalyst return
    10.
    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

    IPC分类号: C07C1/00 B01J8/18

    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。