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    METHOD FOR SEPARATING NON-LINEAR OLEFINS FROM AN OLEFIN FEED BY REACTIVE DISTILLATION
    1.
    发明申请
    METHOD FOR SEPARATING NON-LINEAR OLEFINS FROM AN OLEFIN FEED BY REACTIVE DISTILLATION 有权

    公开(公告)号：US20210371360A1

    公开(公告)日：2021-12-02

    申请号：US16968186

    申请日：2019-01-28

    申请人： IFP Energies Nouvelles ,  Total Research & Technology Feluy

    发明人： Kirill DROBYSHEV ,  Vincent COUPARD ,  Nikolai NESTERENKO

    IPC分类号： C07C7/148 ,  C07C7/04 ,  C07C1/24 ,  B01D3/00 ,  B01D3/42

    摘要： The present invention relates to a process for treating, by reactive distillation, an olefinic feedstock comprising linear olefins containing n carbon atoms, and branched olefins, the branched olefins comprising tertiary branched olefins, for example a mixture of n-butenes and of tertiary branched olefins comprising isobutene, so as to produce an olefinic effluent with a mass content of tertiary branched olefin of less than or equal to 3% by weight and a heavy hydrocarbon effluent, said process comprising the feeding of a reactive distillation section with said olefinic feedstock and with an alcohol feedstock comprising a primary alcohol, said reactive distillation section comprising a column composed at least of an upper reflux zone into which is introduced said alcohol feedstock, comprising, for example, ethanol, an intermediate reaction zone comprising at least 6 reactive doublets, and a lower fractionation zone at the level of which said section is fed with said olefinic feedstock, said reactive distillation section being operated at a relative pressure of between 0.3 and 0.5 MPa, a column head temperature of between 40° C. and 60° C., with a reflux ratio of between 1.8 and 2.2.

    PROCESS FOR DEHYDRATION OF ETHANOL TO ETHYLENE AT LOW ENERGY CONSUMPTION
    3.
    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。

    METHOD FOR DEHYDRATING A MIXTURE CONTAINING ETHANOL AND ISOPROPANOL
    9.
    发明申请
    METHOD FOR DEHYDRATING A MIXTURE CONTAINING ETHANOL AND ISOPROPANOL 有权
    用于脱水含有乙醇和异丙醇的混合物的方法

    公开(公告)号：US20170022124A1

    公开(公告)日：2017-01-26

    申请号：US15039613

    申请日：2014-10-08

    申请人： IFP Energies nouvelles ,  TOTAL RESEARCH & TECHNOLOGY FELUY

    发明人： Nicolas ARIBERT ,  Laure BRANDHORST ,  Vincent COUPARD ,  Sylvie MAURY ,  Tom VIVIEN

    IPC分类号： C07C1/24 ,  B01J35/10 ,  B01J21/04

    CPC分类号： C07C1/24 ,  B01J21/04 ,  B01J35/1019 ,  B01J35/1061 ,  C07C2521/04 ,  Y02P20/52 ,  C07C11/06 ,  C07C11/04

    摘要： Production of a mixture of ethylene and propylene from a mixture containing ethanol and isopropanol and having a water content between 30 and 75 wt. % is obtained by a process comprising: a) contacting the mixture in a dehydration unit with a dehydration catalyst chosen from: an alumina (A) having a BET specific surface area between 200 and 350 m2/g, a mean mesopore diameter between 5 and 15 nm, a sodium content of less than 50 ppm by weight, and a sulphur content of less than 40 ppm by weight; and an alumina (B) having a BET specific surface area between 130 and 180 m2/g, a mean mesopore diameter between 14 and 20 nm, a sodium content between 300 and 600 ppm by weight, and a sulphur content between 800 and 1300 ppm by weight; b) withdrawing an effluent containing ethylene and propylene from the dehydration unit.

    摘要翻译： 本发明涉及一种从含有乙醇和异丙醇的混合物中制备乙烯和丙烯混合物的方法，其含水量相对于混合物的总重量为30至75重量％，其中：a）将混合物置于 在脱水装置中与脱水催化剂接触，所述脱水催化剂选自：具有BET比表面积的氧化铝（A），其根据标准ASTM D 3663-03测量为200至350m 2 / g，平均介孔直径为5 至15nm，钠含量小于50重量ppm，硫含量小于40重量ppm; 和根据标准ASTM D 3663-03测量的具有BET比表面积的氧化铝（B）为130至180m 2 / g，平均介孔直径为14至20nm，钠含量为300至600ppm重量 硫含量为800〜1300ppm（重量）; 该接触在350-500℃的温度，0.2-2MPa的总压力和小时加权速度（pph）下进行，定义为乙醇和异丙醇的质量流量与重量的比例 的催化剂，为1〜10h-1; 和b）从所述脱水单元中排出含有乙烯和丙烯的流出物。