Multiple vapor feeds for hydrogenation process to produce alcohol
    1.
    发明授权
    Multiple vapor feeds for hydrogenation process to produce alcohol 有权
    多个蒸气进料用于氢化过程产生醇

    公开(公告)号:US08927790B2

    公开(公告)日:2015-01-06

    申请号:US13547162

    申请日:2012-07-12

    IPC分类号: C07C29/12

    摘要: The present invention relates to processes for the recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising ethyl acetate, ethanol and acetaldehyde and a residue stream comprising ethanol, acetic acid and water. The ethanol product is recovered from the residue stream. A liquid recycle stream is sent to a second vaporizer to form a second vapor feed stream that is fed to the hydrogenation reactor.

    摘要翻译: 本发明涉及从乙酸氢化获得的粗乙醇产物中回收乙醇的方法。 将粗乙醇产物在柱中分离以产生包含乙酸乙酯,乙醇和乙醛的馏出物流和包含乙醇,乙酸和水的残余物流。 从残余物流中回收乙醇产物。 将液体再循环流送入第二蒸发器以形成进料到氢化反应器的第二蒸气进料流。