PROCESS FOR PRODUCING 1,3-BUTADIENE FROM A FEEDSTOCK COMPRISING ETHANOL
    1.
    发明申请
    PROCESS FOR PRODUCING 1,3-BUTADIENE FROM A FEEDSTOCK COMPRISING ETHANOL 有权
    从包含乙醇的饲料生产1,3-丁二烯的方法

    公开(公告)号:US20160376206A1

    公开(公告)日:2016-12-29

    申请号:US15039881

    申请日:2014-11-28

    IPC分类号: C07C1/20 C07C29/04

    摘要: Production of 1,3-butadiene ethanol, that is more than 50% of the total weight of feedstock: A) conversion of feedstock and of ethanol effluent from separation B to a conversion effluent being a majority of 1,3-butadiene, water and ethylene, and to a hydrogen effluent, operating at a pressure between 0.1 and 1.0 MPa, a temperature between 300 and 500° C. in the presence of at least one catalyst; B) separation of conversion effluent originating from A and hydration effluent from C to an ethanol effluent, a butadiene effluent, a water effluent and an ethylene effluent; C) hydration of ethylene fed by ethylene effluent and/or water effluent both from separation B, to produce an ethanol hydration effluent then being recycled to separation 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,即其中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至1.0MPa的压力下操作的氢气流出物 在至少一种催化剂存在下,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.

    METHOD FOR PARTIALLY EXTRACTING BUTANOL FROM AN AQUEOUS SOLUTION COMPRISING ETHANOL AND BUTANOL

    公开(公告)号:US20210230087A1

    公开(公告)日:2021-07-29

    申请号:US15734020

    申请日:2019-05-21

    IPC分类号: C07C29/84

    摘要: The invention relates to a process for treating an hydroalcoholic feedstock comprising ethanol and butanol in order to produce an ethanol-rich effluent, a water-rich effluent and a butanol-rich effluent, comprising a) a water-ethanol separation step comprising a distillation column fed with said hydroalcoholic feedstock and comprising at least 14 theoretical plates, a molar reflux ratio of less than or equal to 1.2, a side withdrawal in the butanol accumulation zone and two injections of recycled streams resulting from steps b) and c); b) a demixing step comprising a section for mixing the stream withdrawn in step a) and the fraction withdrawn in step c), and a decanting section, the heavy phase being recycled to the distillation column of step a); c) a butanol separation step comprising a distillation column fed with the light phase resulting from step b), comprising a side withdrawal of a water/butanol/ethanol fraction recycled to the mixing section of step b) and producing a butanol-rich effluent and an ethanol-water distillate which is recycled to the distillation column of step a). This process appears to be particularly advantageous for the treatment of the hydroalcoholic effluent from the Lebedev process.

    PROCESS FOR THE STEAM CRACKING OF ETHANE
    7.
    发明申请

    公开(公告)号:US20190225893A1

    公开(公告)日:2019-07-25

    申请号:US16256413

    申请日:2019-01-24

    摘要: The invention relates to a process for the steam cracking of a feedstock composed of at least 80% by weight, in particular of at least 90% by weight, of ethane, the process comprising a steam cracking of the feedstock in a furnace (2), then a quenching of the pyrolysis products, then a compression operation, then a series of successive operations on the products resulting from the quenching, the said series of operations comprising a washing operation, followed by a drying operation and at least one compression operation, and finally a fractionation by cryogenic distillation. A selective hydrogenation operation, followed by a catalytic conversion operation, will be inserted into the said process, after the drying operation and before the fractionation, in order to partially convert the ethylene predominantly into propylene.