Process and plant for producing C2-C4 olefins from methanol and/or dimethyl ether with increased yield
    11.
    发明授权
    Process and plant for producing C2-C4 olefins from methanol and/or dimethyl ether with increased yield 有权
    从甲醇和/或二甲醚生产C2-C4烯烃的方法和装置,产率提高

    公开(公告)号:US09359272B2

    公开(公告)日:2016-06-07

    申请号:US11993714

    申请日:2006-06-23

    IPC分类号: C07C1/20 C07C4/06

    摘要: A process and a plant for producing C2-C4 olefins, in particular propylene, from an educt mixture containing steam as well as methanol vapor and/or dimethyl ether vapor. The educt mixture is reacted in at least one first reactor on a granular, form-selective zeolite catalyst to obtain a reaction mixture including low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in C2-C4 olefins, a mixture rich in C5+ gasoline hydrocarbons, and an aqueous phase, wherein the mixture rich in gasoline hydrocarbons is mixed with an inert medium, the mixture thus obtained is reacted in at least one second reactor on a granular zeolite catalyst to obtain a product mixture including C2-C4 olefins, and this product mixture is recirculated to the first separating device, and wherein the mixture rich in C5+ gasoline hydrocarbons is separated in a second separating device into a product stream containing C5-C6 hydrocarbons and a product stream containing C7+ hydrocarbons, before being supplied to the second reactor, and only the product stream containing C7+ hydrocarbons is supplied to the second reactor, whereas the product stream containing C5-C6 hydrocarbons together with the educt mixture is supplied to the at least one first reactor.

    摘要翻译: 一种用于由含有蒸汽以及甲醇蒸汽和/或二甲醚蒸气的离析混合物生产C 2 -C 4烯烃,特别是丙烯的方法和设备。 在颗粒形式选择性沸石催化剂上的至少一个第一反应器中使该离子混合物反应,得到包含低分子烯烃和汽油烃的反应混合物,其在第一分离装置中分离成富含C 2 -C 4 烯烃,富含C5 +汽油烃的混合物和水相,其中将富含汽油烃的混合物与惰性介质混合,由此得到的混合物在至少一个第二反应器中在颗粒状沸石催化剂上反应,得到产物 混合物包括C 2 -C 4烯烃,并将该产物混合物再循环到第一分离装置,并且其中富含C5 +汽油烃的混合物在第二分离装置中分离成含有C 5 -C 6烃的产物流和含有C 7+ 烃,然后供应到第二反应器,并且仅将含有C7 +烃的产物流供应到第二反应器 将包含C5-C6烃与产物混合物的产物流一起供应至至少一个第一反应器。

    Device for the mechanical inversion of direction of a rotating control component of a landscape sprinkler device
    12.
    发明授权
    Device for the mechanical inversion of direction of a rotating control component of a landscape sprinkler device 有权
    景观洒水装置的旋转控制部件的方向的机械反转装置

    公开(公告)号:US09162239B2

    公开(公告)日:2015-10-20

    申请号:US12997529

    申请日:2009-06-10

    申请人: Thomas Renner

    发明人: Thomas Renner

    摘要: Mechanical inversion of direction of a rotating control component of a landscape sprinkler device. Such a device, having a switching member with end stops associated therewith in both pivoting directions the control component, against said stops the switching member stops and is actuated, wherein at least one end stop can be adjusted coaxially with respect to a pivoting axis of the control component. The switching member is configured in an elastically resilient manner on the contact region thereof that is positioned at the height of the end stops such that the contact region retreats back from the adjusting path of the end stop in case of an overload, and devices are provided in order to re-establish the contact region at a defined position in the rotation angle region between the two end slops from the retreated position.

    摘要翻译: 景观洒水装置的旋转控制部件的方向的机械反转。 这种具有端部的切换构件在两个枢转方向上都在转动方向上停止,控制部件抵靠所述停止,所述切换构件停止并被致动,其中至少一个端部止挡可以相对于所述转动轴线同轴地调节 控制组件。 切换构件以弹性弹性方式构造在其位于端部高度处的接触区域上,使得接触区域在过载的情况下从终端的调节路径退回,并且提供设备 以便在从退避位置的两个端部坡度之间的旋转角度区域中的限定位置处重新建立接触区域。