PROCEDE DE PRODUCTION DE 1,3-BUTADIÈNE À PARTIR D'UNE CHARGE COMPRENANT DE L'ÉTHANOL
    1.
    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.

    PROCÉDÉ DE PRODUCTION DE DIOLÉFINES À PARTIR D'UNE CHARGE DIOL DILUÉE
    5.
    发明公开
    PROCÉDÉ DE PRODUCTION DE DIOLÉFINES À PARTIR D'UNE CHARGE DIOL DILUÉE 审中-公开
    从稀释二氧化硅负荷生产二烯烃的方法

    公开(公告)号:EP3259244A1

    公开(公告)日:2017-12-27

    申请号:EP16705127.5

    申请日:2016-02-17

    摘要: The invention relates to a process for producing diolefins from a dilute diol feedstock, i.e. a feedstock containing from 1% to 30% by weight of diol, comprising at least the following steps: a) an acetalization step, comprising a reaction-separation section fed with said dilute diol feedstock and with a carbonyl feedstock comprising at least the carbonyl effluent resulting from esterification step b), and also comprising at least one separation section so as to produce at least one water effluent and one acetal effluent, b) an esterification step comprising a reaction-separation section fed with the acetal effluent resulting from step a) and comprising at least one separation section treating, by distillation, the effluents of said reaction-separation section and producing at least one water effluent, one carbonyl effluent, one concentrated carboxylic acid effluent and one diol diester residue, said reaction-separation section also being fed with a carboxylic acid feedstock comprising at least said concentrated carboxylic acid effluent, c) a step of pyrolysis of said diol diester residue resulting from step b) comprising a pyrolysis reactor fed with said diol diester residue, said step c) also comprising at least one separation section so as to produce a diolefin effluent.

    PROCEDE DE PRODUCTION DE BUTADIENE A PARTIR DE BUTANEDIOLS

    公开(公告)号:EP3390326A1

    公开(公告)日:2018-10-24

    申请号:EP16809088.4

    申请日:2016-12-13

    IPC分类号: C07C1/213

    摘要: The invention relates to a method for producing 1,3-butanediene from a butanediol feedstock, comprising at least: a) a step of esterification of the butanediol with a carboxylic acid in order to form the corresponding diester, said step being supplied with the butanediol feedstock and with carboxylic acid comprising a carboxylic acid feedstock and the pyrolysis liquid effluent from step b), and producing at least one carboxylic acid effluent and a diester effluent; b) a step of pyrolysis of the diester effluent from step a) comprising a reaction section and a separation section and producing at least one pyrolysis liquid effluent including at least 50 wt.-% carboxylic acid and a pyrolysis steam effluent comprising more than 90 wt.-% butadiene; c) a distillation step supplied with at least the carboxylic acid effluent from step a) and producing an aqueous distillate and a carboxylic acid residue; d) a step of drying the carboxylic acid, supplied at least with the carboxylic acid residue from step c) and producing a water effluent and a carboxylic acid product with which step a) is supplied.