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    Recovering ethanol sidedraw by separating crude product from hydrogenation process
    3.
    发明授权
    Recovering ethanol sidedraw by separating crude product from hydrogenation process 有权
    通过将粗产物与氢化过程分离来回收乙醇

    公开(公告)号：US08536384B2

    公开(公告)日：2013-09-17

    申请号：US13456651

    申请日：2012-04-26

    申请人： Victor J. Johnston ,  Radmila Jevtic ,  David Lee ,  Adam Orosco ,  R. Jay Warner ,  Heiko Weiner ,  Zhenhua Zhou ,  Emily Duff

    发明人： Victor J. Johnston ,  Radmila Jevtic ,  David Lee ,  Adam Orosco ,  R. Jay Warner ,  Heiko Weiner ,  Zhenhua Zhou ,  Emily Duff

    IPC分类号： C07C29/149

    CPC分类号： B01D3/002 ,  B01D3/143 ,  C07C29/149 ,  C07C29/76 ,  C07C29/80 ,  C07C31/08

    摘要： A process for producing ethanol is disclosed, comprising the steps of hydrogenating acetic acid in a reactor in the presence of a catalyst to form a crude ethanol product, separating at least a portion of the crude ethanol product in a column into a first distillate comprising ethanol and a first residue comprising acetic acid and water, wherein a substantial portion of the water in the crude ethanol product that is fed to the column is removed in the first residue, and separating a portion of the ethanol mixture stream to the second distillation column to yield an ethanol product sidedraw, second residue comprising water and a second distillate comprising ethyl acetate. The water content of the ethanol product sidedraw may be further reduced to yield a stream having reduced water content.

    摘要翻译： 公开了一种生产乙醇的方法，包括在催化剂存在下在反应器中氢化乙酸以形成粗乙醇产物的步骤，将塔中的至少一部分粗乙醇产物分离成包含乙醇的第一馏出物 和包含乙酸和水的第一残余物，其中在第一残余物中除去进料到塔中的粗乙醇产物中的大部分水，并将一部分乙醇混合物物流分离成第二蒸馏塔至 产生乙醇产物，副产物，第二残余物包含水和包含乙酸乙酯的第二馏出物。 可以进一步降低乙醇产品侧面的水含量以产生具有降低的水含量的料流。