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    PROCESS FOR DEHYDRATION OF ETHANOL TO ETHYLENE AT LOW ENERGY CONSUMPTION
    4.
    发明申请
    PROCESS FOR DEHYDRATION OF ETHANOL TO ETHYLENE AT LOW ENERGY CONSUMPTION 有权
    乙醛在低能耗下脱乙苯的方法

    公开(公告)号：US20150299068A1

    公开(公告)日：2015-10-22

    申请号：US14646877

    申请日：2013-11-18

    申请人： IFP ENERGIES NOUVELLES ,  TOTAL RESEARCH & TECHNOLOGY FELUY

    发明人： Vincent COUPARD ,  Natacha TOUCHAIS ,  Thomas PLENNEVAUX ,  Emilie KOBEL ,  Stephanie FLEURIER ,  Walter VERMEIREN ,  Delphine MINOUX ,  Philip DE SMEDT ,  Cindy ADAM ,  Nikolai NESTERENKO

    IPC分类号： C07C1/24 ,  C07C41/09

    CPC分类号： C07C1/24 ,  C07C29/76 ,  C07C41/09 ,  C07C2527/173 ,  C07C2529/40 ,  C07C2529/85 ,  Y02P30/48 ,  C07C43/06 ,  C07C11/04 ,  C07C31/08

    摘要： A process for dehydration of an ethanol feedstock to ethylene by: a) preheating ethanol feedstock by heat exchange with effluent from e), b) pretreating the ethanol feedstock to produce pretreated ethanol feedstock, c) vaporizing a vaporization feedstock containing pretreated ethanol feedstock and at least a portion of the flow of treated water recycled in an exchanger to produce a vaporized feedstock, d) compressing said vaporized feedstock to produce a compressed feedstock, e) dehydrating said compressed feedstock in at least one adiabatic reactor, f) separating the effluent from the last adiabatic reactor of e) into an effluent containing ethylene and an effluent containing water, g) purifying at least a portion of the effluent containing water from 0 and separating at least one flow of treated water and at least one flow of unconverted ethanol, h) recycling at least a portion of the flow of treated water from g) upstream of c).

    摘要翻译： 乙醇原料通过以下方法脱乙醇的方法：a）通过与来自e）的流出物热交换来预热乙醇原料，b）预处理乙醇原料以产生经预处理的乙醇原料，c）蒸发含有经预处理的乙醇原料的蒸发原料， 在交换器中再循环的经处理水的至少一部分流动以产生蒸发的原料，d）压缩所述蒸发的原料以产生压缩原料，e）使至少一个绝热反应器中的所述压缩原料脱水，f）将流出物从 将e）的最后绝热反应器装入含有乙烯和含水的流出物的流出物中，g）将至少一部分含有水的流出物从0中纯化并分离至少一个处理水流和至少一个未转化的乙醇流， h）从c）上游再循环处理水流的至少一部分。

    PROCESS FOR PURIFICATION OF CO2 IN AN ETHYLENE STREAM OBTAINED FROM THE DEHYDRATION OF ETHANOL
    5.
    发明申请
    PROCESS FOR PURIFICATION OF CO2 IN AN ETHYLENE STREAM OBTAINED FROM THE DEHYDRATION OF ETHANOL 有权
    从乙醇脱氢获得的乙烯流中的二氧化碳的净化过程

    公开(公告)号：US20150353443A1

    公开(公告)日：2015-12-10

    申请号：US14760827

    申请日：2014-01-10

    申请人： IFP ENERGIES NOUVELLES ,  TOTAL RESEARCH & TECHNOLOGY FELUY

    发明人： Vincent COUPARD ,  Thomas PLENNEVAUX ,  Stephanie FLEURIER ,  Walter VERMEIREN ,  Delphine MINOUX ,  Philip DE SMEDT ,  Cindy ADAM ,  Nikolai NESTERENKO

    IPC分类号： C07C1/24

    CPC分类号： C07C1/24 ,  C07C11/04

    摘要： Process for the production of ethylene from an ethanol feedstock that comprises these stages: a) dehydration to produce at least ethylene and water effluents, b) partial condensation of said ethylene effluent, c) separating phases of said partially condensed ethylene effluent to produce gas and liquid effluents, d) compression of said gas effluent to produce compressed gas effluent, e) washing said compressed gas effluent by contact with the recycled washing water of stage h) to produce washed gas and waste water effluents, f) absorption of said washed gas effluent by contact with at least an absorbent solution to produce purified gas effluent, g) distilling said waste water effluent and, jointly, said water effluent from said dehydration stage to produce at least gas distillate, liquid distillate, purified water effluent, and distillation residue, h) recycling, as washing water, at least a portion of said purified water effluent upstream from the washing stage e).

    摘要翻译： 从包括以下阶段的乙醇原料生产乙烯的方法：a）脱水以产生至少乙烯和水流出物，b）所述乙烯流出物的部分缩合，c）分离所述部分冷凝的乙烯流出物的相以产生气体和 液体流出物，d）压缩所述气体流出物以产生压缩气体流出物; e）通过与步骤h）的再循环洗涤水接触来洗涤所述压缩气体流出物，以产生洗涤的气体和废水流出物，f）吸收所述洗涤气体 流出物通过与至少一种吸收剂溶液接触以产生净化的气体流出物，g）将所述废水流出物和所述脱水阶段的所述水流出物共同蒸馏以产生至少气体馏出物，液体馏出物，净化水流出物和蒸馏残余物 ，h）作为洗涤水回收洗涤阶段e）上游的所述净化水流出物的至少一部分。