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    • 26. 发明公开
    • PROCESS AND APPARATUS FOR THE PREPARATION OF ALKYLENE GLYCOL
    • 用于制备亚乙基二醇的方法和设备
    • EP3197854A1
    • 2017-08-02
    • EP15766158.8
    • 2015-09-21
    • Shell Internationale Research Maatschappij B.V.
    • WILKINSON, Peter MervynBLACK, Jesse RaymondBASTINGS, Roel Guillaume Hubertus Leonardus
    • C07C29/10C07C29/12B01D3/20B01D3/22C07C31/20
    • A process for the preparation of an alkylene glycol from an alkene is provided, along with an absorber apparatus. The process comprises: supplying a gas composition to an absorber comprising a column of vertically stacked trays, wherein each of the vertically stacked trays comprises: a perforated gas-liquid contacting member or members, a liquid inlet area, an outlet weir extending vertically above a surface of the tray at an opposite end of the tray from the liquid inlet area and having a height of at least 200 mm and at most 1500 mm, and a downcomer element which, in cooperation with an inner surface of a wall of the column, forms a downcomer for the passage of liquid downwardly to the liquid inlet area of an adjacent vertically stacked tray below, and allowing the gas composition to pass upwards through the alkylene oxide absorber.
    • 本发明提供了一种由烯烃制备亚烷基二醇的方法,其包括以下步骤:(a)将包含烯化氧,烯烃,氧气,二氧化碳和水蒸汽的气体组合物供应到烯化氧吸收剂的底部,所述吸收剂 包括一列垂直堆叠的托盘,其中每个垂直堆叠的托盘包括一个或多个穿孔的气液接触构件,液体入口区域,出口堰,该出口堰在托盘的相对端垂直延伸到托盘的表面上, 液体入口区和降液管元件,该降液管元件与塔的壁的内表面协作形成降液管,用于液体向下直接向下通到垂直相邻塔盘的液体入口区域,其中出口堰分别位于 塔盘的高度至少为200毫米,最高为1500毫米,并允许气体组合物向上通过塔; (b)将贫吸收剂供应到烯化氧吸收剂的顶部并使贫吸收剂向下通过该柱; (c)在一种或多种促进羧化和水解的催化剂存在下,使所述气体组合物与贫吸收剂在所述环氧烷吸收器中的塔盘上紧密接触; 和(d)从环氧烷吸收器中排出脂肪吸收剂。