PROCEDE DE PRODUCTION DE 1,3-BUTADIÈNE À PARTIR D'UNE CHARGE COMPRENANT DE L'ÉTHANOL
    6.
    发明公开
    PROCEDE DE PRODUCTION DE 1,3-BUTADIÈNE À PARTIR D'UNE CHARGE COMPRENANT DE L'ÉTHANOL 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON 1,3-BUTADIEN AUS EINEM ETHANOLHALTIGEN ROHSTOFF

    公开(公告)号:EP3074367A1

    公开(公告)日:2016-10-05

    申请号:EP14805885.2

    申请日:2014-11-28

    IPC分类号: C07C1/20 C07C29/04

    摘要: The invention relates to a process for producing 1,3-butadiene from an ethanol-rich feedstock, i.e. in which the ethanol represents more than 50% of the total weight of said feedstock, comprising at least: A) a step of converting at least said ethanol-rich feedstock and the ethanol effluent resulting from the separation step B into a conversion effluent predominantly comprising 1,3-butadiene, water and ethylene, and into a hydrogen effluent, operating at a pressure between 0.1 and 1.0 MPa, at a temperature between 300°C and 500°C in the presence of at least one catalyst; B) a step of separating at least said conversion effluent resulting from A and the hydration effluent resulting from C into at least an ethanol effluent, a butadiene effluent, a water effluent and an ethylene effluent; C) an ethylene hydration step supplied at least by said ethylene effluent and/or said water effluent both resulting from the separation step B, in order to produce a hydration effluent comprising ethanol, said hydration effluent then being recycled to the separation step B.

    摘要翻译: 本发明涉及从富含乙醇的原料生产1,3-丁二烯的方法,即乙醇占所述原料总重量的50%以上,至少包括:A)至少转化的步骤 所述乙醇富集的原料和由分离步骤B产生的乙醇流出物转化为主要包含1,3-丁二烯,水和乙烯的转化流出物,并在温度为0.1-1.0MPa的压力下进行氢气流出物 在至少一种催化剂的存在下在300℃至500℃之间; B)至少将从A产生的所述转化流出物和由C产生的水合流出物分离成至少乙醇流出物,丁二烯流出物,水流出物和乙烯流出物的步骤; C)至少由所述乙烯流出物和/或所述水流出物供应的乙烯水合步骤,其由分离步骤B产生,以便产生包含乙醇的水合流出物,然后将所述水合流出物再循环至分离步骤B.