Method for the Production of Synthetic Fuels from Oxygenates
    1.
    发明申请
    Method for the Production of Synthetic Fuels from Oxygenates 失效
    从氧合物生产合成燃料的方法

    公开(公告)号:US20090050531A1

    公开(公告)日:2009-02-26

    申请号:US11795930

    申请日:2005-12-01

    IPC分类号: C10G35/095

    摘要: Disclosed is a method for the production of synthetic fuels, wherein, in a first step, a gas mixture consisting of methanol and/or dimethyl ether and/or another oxygenate and water vapor is reacted at temperatures of 300-600° C. in order to form olefins with, preferably, 268 carbon atoms. In a second step, the olefin mixture thus obtained is oligomerized at an elevated pressure to form higher olefins with predominantly more than 5, preferably 10-20 carbon atoms. According to said method, a) the production of olefins in the first step is carried out in the presence of a gas flow which essentially consists of saturated hydrocarbons which are separated from the product flow of the second step and returned to the first step, and (b) the production of olefins is carried out in the second step in the presence of a flow of water vapor which is separated from the product flow of the first step and returned to the first step.

    摘要翻译: 公开了一种生产合成燃料的方法,其中在第一步骤中,将由甲醇和/或二甲醚和/或另外的含氧化合物和水蒸气组成的气体混合物在300-600℃的温度下反应 以形成具有优选268个碳原子的烯烃。 在第二步中,由此获得的烯烃混合物在升高的压力下低聚形成主要大于5,优选10-20个碳原子的较高级烯烃。 根据所述方法,a)第一步中的烯烃的生产在气流的存在下进行,所述气流主要由与第二步的产物流分离并返回到第一步的饱和烃组成, (b)在与第一步骤的产物流分离并且返回到第一步骤的水蒸气流的存在下,在第二步中进行烯烃的生产。

    Method for production propylene from a flow containing c4 to c8 olefins
    2.
    发明申请
    Method for production propylene from a flow containing c4 to c8 olefins 有权
    从含有c4至c8烯烃的流程生产丙烯的方法

    公开(公告)号:US20050234282A1

    公开(公告)日:2005-10-20

    申请号:US10522498

    申请日:2003-06-05

    摘要: In a method for the production of propylene, a charge stream containing C4 to C6 olefins is evaporated, superheated, mixed with hot water vapor, the olefins vapor mixture converted on a zeolite catalyst, the reaction mixture formed thereby cooled, and then partially condensed. In order to increase the yield of propylene, the gaseous phase containing ethylene, propylene, C4 to C8 olefins, and additional hydrocarbons that is accumulated during the partial condensation is compressed, the gaseous and liquid phase containing propylene, ethylene, and other light hydrocarbons that exit from the compression step is separated into a gaseous phase containing propylene, ethylene, and other light hydrocarbons and a liquid phase containing C4+ olefins, and the liquid phase is separated into a fraction containing C4 to C6 olefins and a fraction containing C7+ olefins.

    摘要翻译: 在制备丙烯的方法中,将含有C 4 -C 6烯烃的电荷流蒸发,过热,与热水蒸气混合,将烯烃蒸气混合物转化为 沸石催化剂,由此形成的反应混合物冷却,然后部分冷凝。 为了提高丙烯的产率,含有乙烯,丙烯,C 4 -C 8烯烃的气相和在部分冷凝期间积聚的其它烃被压缩 含有丙烯,乙烯和从压缩步骤出来的其它轻烃的气相和液相被分离成含有丙烯,乙烯和其它轻质烃的气相和含有C 4 +烯烃,并将液相分离成含有C 4 O 6至C 6 O 6烯烃的馏分和含有C 7+烯烃的级分。

    Process and Plant for Producing C2-C4 Olefins from Methanol and/or Dimethyl Ether
    3.
    发明申请
    Process and Plant for Producing C2-C4 Olefins from Methanol and/or Dimethyl Ether 有权
    从甲醇和/或二甲醚生产C2-C4烯烃的工艺和设备

    公开(公告)号:US20090124841A1

    公开(公告)日:2009-05-14

    申请号:US12089823

    申请日:2006-09-19

    IPC分类号: C07C1/00 B01D3/14 C07C11/06

    摘要: In producing C2-C4 olefins, in particular propylene, from an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, the educt mixture is reacted in a reactor on a catalyst to a reaction mixture comprising low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in C5− olefins, a mixture rich in C5+ gasoline hydrocarbons, and an aqueous phase. To increase the yield of propylene the mixture rich in C5+ gasoline hydrocarbons is supplied to a second separating device, in which the aromatics contained in the mixture are separated. The residual stream largely free from aromatics is at least partly recirculated to the reactor.

    摘要翻译: 在由含有蒸汽和含氧化合物(例如甲醇和/或二甲醚)的离析混合物生产C 2 -C 4烯烃,特别是丙烯的情况下,将该反应混合物在反应器中在催化剂上反应至包含低分子烯烃和 汽油烃,其在第一分离装置中分离成富含C5-烯烃的混合物,富含C5 +汽油烃的混合物和水相。 为了提高丙烯的收率,将富含C5 +汽油烃的混合物供给第二分离装置,其中混合物中所含的芳烃被分离。 大部分不含芳族化合物的残余物流至少部分地再循环到反应器中。