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31. 发明申请

WO2008012218A1 PRODUCTION OF OLEFINS 审中-公开
标题翻译：生产油脂
公开(公告)号：WO2008012218A1
公开(公告)日：2008-01-31
申请号：PCT/EP2007/057260
申请日：2007-07-13
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , DATH, Jean-Pierre , VERMEIREN, Walter
发明人： DATH, Jean-Pierre , VERMEIREN, Walter
IPC分类号： C10G11/05 , C07C11/06 , C07C4/06
CPC分类号： C10G11/05 , C10G2300/1037 , C10G2300/4018 , C10G2400/20
摘要： A process for converting a hydrocarbon feedstock to provide an effluent containing light olefins, the process comprising passing a hydrocarbon feedstock, the feedstock containing at least 25wt % C5+ paraffins, through a reactor containing a crystalline silicate catalyst to produce an effluent including propylene.
摘要翻译：一种用于转化烃原料以提供含有轻质烯烃的流出物的方法，该方法包括将含有至少25重量％的C 5+链烷烃的原料的烃原料通过含有结晶硅酸盐催化剂的反应器，以产生包含丙烯的流出物。

32. 发明申请

WO2005016856A1 PRODUCTION OF OLEFINS 审中-公开
标题翻译：生产油脂
公开(公告)号：WO2005016856A1
公开(公告)日：2005-02-24
申请号：PCT/EP2004/009142
申请日：2004-08-12
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , DATH, Jean-Pierre , VERMEIREN, Walter
发明人： DATH, Jean-Pierre , VERMEIREN, Walter
IPC分类号： C07C1/20
CPC分类号： C07C1/20 , B01J29/40 , B01J2229/16 , B01J2229/36 , B01J2229/42 , C07C4/06 , C07C2529/40 , Y02P20/52 , Y02P30/42 , C07C11/06 , C07C11/04
摘要： A process for converting a hydrocarbon feedstock to provide an effluent containing light olefins, the process comprising passing a hydrocarbon feedstock comprising a mixture of a first portion, containing one or more olfeins of C 4 or greater, and a second portion, containing at least one C 1 to C 6 aliphatic hetero compound selected from alcohols, ethers, carbonyl compounds and mixtures thereof, through a reactor containing a crystalline silicate catalyst to produce an effluent including propylene, the crystalline silicate being selected from at least one of an MFI-type crystalline silicate having a silicon/aluminium atomic ratio of at least 180 and an MEL-type crystalline silicate having a silicon/aluminium atomic ratio of from 150 to 800 which has been subjected to a steaming step.
摘要翻译：一种用于转化烃原料以提供含有轻质烯烃的流出物的方法，该方法包括使包含含有一种或多种C4或更多烯醇的第一部分的混合物的烃原料和含有至少一种C1 通过包含结晶硅酸盐催化剂的反应器制备包含丙烯的流出物的选自醇，醚，羰基化合物及其混合物的C 6脂肪族杂化合物，所述结晶硅酸盐选自MFI型结晶硅酸盐中的至少一种，其具有至少180的硅/铝原子比和经过蒸汽步骤的硅/铝原子比为150至800的MEL型结晶硅酸盐。

33. 发明申请

WO2009065898A1 PRODUCTION OF LIGHT OLEFINS AND ISOPRENE FROM BUTANE 审中-公开
标题翻译：从丁醇生产轻油脂和异丙酚
公开(公告)号：WO2009065898A1
公开(公告)日：2009-05-28
申请号：PCT/EP2008/065926
申请日：2008-11-20
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , VERMEIREN, Walter , BOUVART, François
发明人： VERMEIREN, Walter , BOUVART, François
IPC分类号： C07C11/18
CPC分类号： C07C11/04 , C07C4/04 , C07C5/333 , C07C7/04 , C07C11/06 , C07C11/10 , C07C407/00 , C07C9/10 , C07C9/12 , C07C11/09 , C07C409/04
摘要： Process for the selective production of ethylene, propylene and isoprene from light hydrocarbons comprising: a) fractionating a butane fraction in a de-isobutanizer to obtain an enriched iso-butane fraction and an enriched normal-butane fraction, b) cracking said normal-butane fraction and optionally an ethane fraction, optionally a propane fraction, in a non-catalytic cracking zone to produce an olefin rich stream, c) treating said olefin rich stream in a separating section to recover : an ethylene stream, a propylene stream, d) transforming the recovered iso-butane of step a) into iso-butene or t-butyl hydroperoxide or partly into iso-butene and partly into t-butyl hydroperoxide, e) optionally reacting iso-butene of step d), if any, with formaldehyde to make isoprene, f) optionally reacting t-butyl hydroperoxide of step d), if any, with an olefin to give an epoxide and t-butanol and further separating t-butanol, or optionally having t-butyl hydroperoxide of step d), if any, decomposed to t-butanol and reacted with formaldehyde to give isoprene, or reacting a part of the t-butyl hydroperoxide of step d) with an olefin and having the remaining part decomposed to t-butanol and reacted with formaldehyde to give isoprene, g) dehydrating the t-butanol recovered at step f), if any, into iso-butene and reacting said iso-butene with formaldehyde to make isoprene, or reacting directly the t-butanol recovered at step f), if any, with formaldehyde to make isoprene, or dehydrating the t-butanol recovered at step f), if any, into iso-butene, hydrogenating said iso-butene to iso-butane and oxidizing said iso-butane into t-butyl hydroperoxide, and recycling said t-butyl hydroperoxide, or dehydrating the t-butanol recovered at step f), if any, into iso-butene, then disproportionating said iso-butene and propylene recovered at step c) (or 2-butene recovered at step c)), separating an isoamylene stream and converting the isoamylene into isoprene by dehydrogenation, or making any combination of above routes of said step g), h) optionally disproportionating iso-butene of step d), if any, and propylene recovered at step c) (or 2-butene recovered at step c)), separating an isoamylene stream and converting the isoamylene into isoprene by dehydrogenation, at least one of steps e), f) and h) is not optional.
摘要翻译：从轻烃中选择性生产乙烯，丙烯和异戊二烯的方法，包括：a）在去异丁烷化器中分馏丁烷馏分以获得富集的异丁烷馏分和富含正丁烷馏分，b）裂化所述正丁烷馏分和任选的乙烷馏分，任选的丙烷馏分，以产生富烯烃流，c）在分离段中处理所述富烯烃流以回收：乙烯料流，丙烯料流，d）将步骤a）的回收的异丁烷转化为异丁烯或叔丁基过氧化氢或部分转化为异丁烯，部分转化为叔丁基过氧化氢，e）任选地使步骤d）的异丁烯与甲醛制备异戊二烯，f）任选地使步骤d）的叔丁基过氧化氢与烯烃反应，得到环氧化物和叔丁醇，并进一步分离叔丁醇或任选具有步骤d）的叔丁基过氧化氢，如果有的话，分解 d与叔丁醇反应并与甲醛反应得到异戊二烯，或使步骤d）的叔丁基过氧化氢的一部分与烯烃反应并将其余部分分解成叔丁醇并与甲醛反应得到异戊二烯，g）使步骤f）中回收的叔丁醇脱水成异丁烯，并使所述异丁烯与甲醛反应制备异戊二烯，或直接与步骤f）回收的叔丁醇反应生成甲醛或将在步骤f）中回收的叔丁醇脱水，如果有的话，将异丁烯氢化成异丁烯，将所述异丁烷氧化成叔丁基过氧化氢，并将所述叔丁基过氧化氢或将在步骤f）回收的叔丁醇脱水成异丁烯，然后歧化在步骤c）回收的所述异丁烯和丙烯（或步骤c）回收的2-丁烯）），将异戊烯流并通过脱氢将异戊烯转化为异戊二烯，或进行任何反应所述步骤g）的上述路线的bination，h）任选歧化步骤d）的异丁烯（如果有的话）和在步骤c）回收的丙烯（或在步骤c）回收的2-丁烯），分离异戊烯流并转化异戊烯通过脱氢进入异戊二烯，步骤e），f）和h）中的至少一个不是任选的。

34. 发明申请

WO2012038247A1 PRODUCTION OF ISOPRENE FROM ISO-BUTANOL 审中-公开
标题翻译：从ISO-丁醇生产异丙苯
公开(公告)号：WO2012038247A1
公开(公告)日：2012-03-29
申请号：PCT/EP2011/065350
申请日：2011-09-06
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , VERMEIREN, Walter , GONZALEZ, Jose Castor
发明人： VERMEIREN, Walter , GONZALEZ, Jose Castor
IPC分类号： C07C1/24 , C07C11/18
CPC分类号： C07C2/867 , C07C1/22 , C07C1/24 , C07D301/02 , C07C11/09 , C07C11/18
摘要： The present invention is a process to make isoprene comprising : a)providing a reaction zone comprising an acidic aqueous solution, b)introducing, continuously or intermittently, in said reaction zone a mixture comprising (i) isobutanol and optionally (ii) t-butanol or an iso-butene precursor which is not isobutanol and not t-butanolor iso-buteneor any combination of two or three of these (ii) components, an aqueous solution of formaldehyde,c)operating said reaction zone at conditions effective to dehydrate isobutanol and optionally (ii) t-butanol and optionally the iso-butene precursor to iso-butene and produce isoprene by reaction of formaldehyde and iso-butene while distilling away a mixture comprising produced isoprene, water, unreacted starting materials and other low boiling point components from this reaction zone to the outside of the reaction zone. In another embodiment isobutanol provides 10% or more of the iso-butenefor the isoprene synthesis. In another embodiment isobutanol provides 20% or more of the iso-butene for the isoprene synthesis. In another embodiment isobutanol provides 30% or more of the iso-butene for the isoprene synthesis. In another embodiment isobutanol provides 40% or more of the iso-butene for the isoprene synthesis. In another embodiment isobutanol provides 50% to 100% of the iso-butene for the isoprene synthesis.
摘要翻译：本发明是一种制备异戊二烯的方法，其包括：a）提供包含酸性水溶液的反应区，b）在所述反应区中连续或间歇地引入混合物，所述混合物包含（i）异丁醇和任选的（ii）或不是异丁醇而不是叔丁醇或异丁烯的异丁烯前体，这些（ii）组分中的两种或三种的任何组合，甲醛水溶液，c）在有效脱水异丁醇的条件下操作所述反应区，任选地（ⅱ）叔丁醇和任选的异丁烯前体与异丁烯反应，并通过甲醛和异丁烯的反应产生异戊二烯，同时蒸馏出包含产生的异戊二烯，水，未反应的起始原料和其它低沸点组分的混合物该反应区到反应区外。在另一个实施方案中，异丁醇提供10％或更多的用于异戊二烯合成的异丁烯。在另一个实施方案中，异丁醇为异戊二烯合成提供20％或更多的异丁烯。在另一个实施方案中，异丁醇为异戊二烯合成提供30％或更多的异丁烯。在另一个实施方案中，异丁醇为异戊二烯合成提供40％或更多的异丁烯。在另一个实施方案中，异丁醇为异戊二烯合成提供50％至100％的异丁烯。

35. 发明申请

WO2011073226A3 DEBOTTLENECKING OF A STEAM CRACKER UNIT TO ENHANCE PROPYLENE PRODUCTION 审中-公开
公开(公告)号：WO2011073226A3
公开(公告)日：2011-06-23
申请号：PCT/EP2010/069694
申请日：2010-12-15
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , VERMEIREN, Walter , BOUVART, François , CELIE, Ineke , GARCIA, Wolfgang
发明人： VERMEIREN, Walter , BOUVART, François , CELIE, Ineke , GARCIA, Wolfgang
IPC分类号： C10G9/00 , C10G51/04 , C10G69/06
摘要： The present invention is a method for debottlenecking an existing steam cracker unit of which the operation is modified from high severity to low severity operation, having a cracking zone and a fractionation zone, said fractionation zone comprising a gasoline stripper, a de-methaniser (I), a de-ethaniser (I), a de-propaniser (I) and a de-butaniser (I), said de-propaniser (I) receiving product from the bottom of the de-ethaniser (I) and optionally product from the bottom of the gasoline stripper (I), wherein said debottlenecking method comprises the steps of : a) adding a selective hydrogenation unit (II), b) adding a cracking reactor (II) comprising a catalyst selective towards light olefins in the outlet, c) adding a re-run column and a de-propaniser (II), d) sending a part or all of the bottoms stream of the gasoline stripper (I) to the selective hydrogenation unit (II) and subsequently to the cracking reactor (II) at conditions effective to produce an outlet with an olefin content of lower molecular weight than that of the inlet, e) sending a part of the bottoms stream of the de-ethaniser (I) to the de-propaniser (II), such as, not to overload the de-propaniser (I), f) optionally sending a part or all of the overhead raw C 4 fraction of the de-butaniser (I) to the selective hydrogenation unit (II), g) sending the cracking reactor (II) outlet to the re-run column to produce a C 6 + bottom stream and a C 1 -C 5 overhead, sending said overhead to the de-propaniser (II) to produce a C 1 -C 3 overhead and a C 4 + bottom stream recycled in whole or in part to the selective hydrogenation unit (II), optionally withdrawing a part of said C 4 + bottom stream.

36. 发明申请

WO2011012438A1 USE OF FREE FATTY ACIDS PRODUCED FROM BIO-SOURCED OILS&FATS AS THE FEEDSTOCK FOR A STEAMCRACKER 审中-公开
标题翻译：使用从生物来源的油和脂肪生产的免费脂肪酸作为蒸馏器的饲料
公开(公告)号：WO2011012438A1
公开(公告)日：2011-02-03
申请号：PCT/EP2010/060024
申请日：2010-07-13
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , VANRYSSELBERGHE, Valérie , VERMEIREN, Walter
发明人： VANRYSSELBERGHE, Valérie , VERMEIREN, Walter
IPC分类号： C10G3/00
CPC分类号： C10G3/00 , C10G2300/1007 , C10G2300/1014 , C10G2300/1018 , C10G2300/1044 , C10G2300/1059 , C10G2300/807 , C10G2400/02 , C10G2400/20 , C10G2400/22 , C10G2400/30 , Y02P30/20
摘要： Use of fatty acids produced from a complex mixture of natural occurring oils & fats and/or of triglycerides deriving from said complex mixture as the feedstock of a steamcracker, by mixing the fatty acids with steam in a steam/feedstock ratio of at least 0.2 kg per kg, a coil outlet temperature of at least 700 °C and a coil outlet pressure of at least 1.2 bara in order to obtain cracking products including bio-ethylene, bio-propylene, bio-butadiene,bio-isoprene, bio-cyclopentadiene and bio-piperylenes, bio-benzene, bio-toluene, bio-xylene and bio-gasoline.
摘要翻译：将由所述复合混合物衍生的天然存在的油脂和/或甘油三酯的复合混合物产生的脂肪酸用作蒸汽裂化器的原料，通过将蒸汽/原料比至少为0.2kg的脂肪酸与蒸汽混合每公斤，线圈出口温度至少为700℃，线圈出口压力为至少1.2巴，以获得包括生物乙烯，生物 - 丙烯，生物 - 丁二烯，生物异戊二烯，生物 - 环戊二烯的裂解产物和生物胡椒碱，生物苯，生物甲苯，生物二甲苯和生物汽油。

37. 发明申请

WO2009010407A1 PROCESS FOR THE SELECTIVE OXIDATION OF METHANE 审中-公开
标题翻译：甲烷选择性氧化方法
公开(公告)号：WO2009010407A1
公开(公告)日：2009-01-22
申请号：PCT/EP2008/058690
申请日：2008-07-04
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , DE WINNE, Hendrik , JACOBS, Pierre , SELS, Bert , VERMEIREN, Walter
发明人： DE WINNE, Hendrik , JACOBS, Pierre , SELS, Bert , VERMEIREN, Walter
IPC分类号： C07C29/50 , C07C31/04 , B01J19/00 , B01J19/24
CPC分类号： C07C29/50 , B01J19/0093 , B01J19/02 , B01J19/242 , B01J19/249 , B01J2219/00085 , B01J2219/00159 , B01J2219/00826 , B01J2219/00873 , B01J2219/024 , B01J2219/0281 , B01J2219/2461 , B01J2219/2487 , C07C31/04
摘要： The present invention is a process for converting methane to methanol, comprising: feeding methane and gaseous air or oxygen or gaseous air enriched with oxygen to a reactor under an elevated pressure; said reactor having an internal surface, made of silica or coated with silica, surrounding a zone in which said gases react; and reacting said gases in said reaction zone at an elevated temperature at conditions effective to produce methanol and /or valuable oxygenates. Advantageously the internal surface is made of quartz or coated with quartz Advantageously the internal surface, made of silica (advantageously quartz) or coated with silica (advantageously quartz), is treated with HF before the conversion of methane to methanol. Advantageously the reaction is carried out in the absence in said reaction zone of any added material which measurably affects the rate of the reaction or the yield of the product. Advantageously the reactor is operated under a pressure from 1 to 7.5 MPa. Advantageously the reactor is operated at a temperature from 300°C to 600°C. Advantageously the reactor is operated at a residence time from 0.1 to 100s. Advantageously the reactor is operated at a methane to oxygen molar ratio from 1 to 50. The present invention also relates to a reactor having an internal surface made of silica (advantageously quartz) or coated with silica (advantageously quartz)
摘要翻译：本发明是一种将甲烷转化成甲醇的方法，包括：在升高的压力下将甲烷和气态空气或富含氧气的氧气或气态空气送入反应器; 所述反应器具有由二氧化硅制成或涂覆有二氧化硅的内表面，所述内表面围绕所述气体反应的区域; 并在有效产生甲醇和/或有价值的含氧化合物的条件下，在升高的温度下使所述反应区中的所述气体反应。有利地，内表面由石英制成或用石英涂覆。有利的是，在将甲烷转化成甲醇之前，用HF处理由二氧化硅（有利的是石英）或用二氧化硅（有利的是石英）制成的内表面。有利地，反应在所述反应区中不存在可测量地影响反应速率或产物收率的任何添加物质。有利地，反应器在1至7.5MPa的压力下操作。有利地，反应器在300℃至600℃的温度下操作。有利地，反应器在0.1至100s的停留时间下运行。有利地，反应器以甲烷与氧的摩尔比为1至50进行操作。本发明还涉及具有由二氧化硅（有利地为石英）或用二氧化硅（有利地为石英）涂覆的内表面的反应器，

38. 发明申请

WO2008012219A1 CATALYTIC CONVERSION OF ALKYLAROMATIC COMPOUNDS 审中-公开
标题翻译：烷基化合物的催化转化
公开(公告)号：WO2008012219A1
公开(公告)日：2008-01-31
申请号：PCT/EP2007/057261
申请日：2007-07-13
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , DATH, Jean-Pierre , VERMEIREN, Walter
发明人： DATH, Jean-Pierre , VERMEIREN, Walter
IPC分类号： C07C4/18 , C07C11/04 , C07C11/06 , C07C15/04 , B01J29/06
CPC分类号： C07C4/18 , B01J29/035 , B01J29/06 , B01J29/70 , Y02P20/52 , C07C11/06 , C07C11/04
摘要： A process for catalytically converting alkylaromatic compounds in a hydrocarbon feedstock, the process comprising passing a hydrocarbon feedstock including at least one alkylaromatic compound, wherein the alkyl group comprises at least two carbon atoms, through a reactor containing a crystalline silicate catalyst to produce an effluent including at least one aromatic compound and at least one light olefin selected from C 2 and C 3 olefins.
摘要翻译：一种用于在烃原料中催化转化烷基芳族化合物的方法，该方法包括使包含至少一种烷基芳族化合物的烃原料（其中烷基包含至少两个碳原子）通过含有结晶硅酸盐催化剂的反应器，以产生流出物，其包括至少一种芳族化合物和至少一种选自C 2和C 3 O 3烯烃的轻质烯烃。

39. 发明申请

WO2007068734A1 CATALYTIC CRACKING 审中-公开
标题翻译：催化裂化
公开(公告)号：WO2007068734A1
公开(公告)日：2007-06-21
申请号：PCT/EP2006/069697
申请日：2006-12-14
申请人： TOTAL PETROCHEMICALS RESEARCH FELUY , DATH, Jean-Pierre , VERMEIREN, Walter , NOIRET, André
发明人： DATH, Jean-Pierre , VERMEIREN, Walter , NOIRET, André
IPC分类号： B01J29/40 , B01J29/08 , C10G11/05 , B01J37/00
CPC分类号： B01J29/40 , B01J29/084 , B01J29/80 , B01J37/0045 , B01J2229/16 , B01J2229/36 , B01J2229/37 , B01J2229/42 , C10G11/05
摘要： A process for producing a catalyst additive for an FCC catalytic cracking process, the process comprising the steps of providing an MFI or MEL aluminosilicate having a silicon/aluminium atomic ratio of from 10 to 250; de-aluminating the MFI or MEL aluminosilicate by extracting from 20 to 40 wt% of the alumina therefrom; combining the de-aluminated MFI or MEL aluminosilicate with a binder; and calcining the combination of the de-aluminated MFI or MEL aluminosilicate and the binder at elevated temperature to produce the catalyst additive.
摘要翻译：一种生产用于FCC催化裂化过程的催化剂添加剂的方法，该方法包括以下步骤：提供硅/铝原子比为10至250的MFI或MEL硅铝酸盐; 通过从其中提取20至40重量％的氧化铝，使MFI或MEL硅铝酸盐脱铝; 将脱铝的MFI或MEL硅铝酸盐与粘合剂组合; 并在升高的温度下煅烧脱铝的MFI或MEL硅铝酸盐和粘合剂的组合以制备催化剂添加剂。

40. 发明申请

WO2013011208A1 PROCÉDÉ DE DÉSHYDRATATION DE L'ÉTHANOL EN ÉTHYLÈNE A BASSE CONSOMMATION ÉNERGÉTIQUE 审中-公开
标题翻译：将乙醇降解成乙烯的低能耗方法
公开(公告)号：WO2013011208A1
公开(公告)日：2013-01-24
申请号：PCT/FR2012/000279
申请日：2012-07-09
申请人： IFP ENERGIES NOUVELLES , TOTAL RESEARCH & TECHNOLOGY FELUY , COUPARD, Vincent , TOUCHAIS, Natacha , FLEURIER, Stéphanie , GONZALEZ PENAS, Helena , VERMEIREN, Walter , MINOUX, Delphine , DE SMEDT, Philip , ADAM, Cindy
发明人： COUPARD, Vincent , TOUCHAIS, Natacha , FLEURIER, Stéphanie , GONZALEZ PENAS, Helena , VERMEIREN, Walter , MINOUX, Delphine , DE SMEDT, Philip , ADAM, Cindy
IPC分类号： C07C1/24 , C07C11/04
CPC分类号： C07C1/24 , C07C7/04 , Y02P30/48 , C07C11/04
摘要： L'invention décrit un procédé de déshydratation d'une charge éthanol en éthylène comprenant la vaporisation de ladite charge éthanol en mélange avec au moins une partie du flux d'eau purifié recyclé selon l'étape f) dans un échangeur grâce à un échange de chaleur avec l'effluent issu du dernier réacteur, ledit mélange étant introduit dans ladite étape de vaporisation à une pression comprise entre 0,1 et 0,4 MPa, la compression du mélange vaporisé dans un compresseur, l'introduction du mélange vaporisée et comprimée, à une température d'entrée comprise entre 350 et 500°C et à une pression d'entrée comprise entre 0,2 et 1,3 MPa, dans au moins un réacteur adiabatique contenant au moins un catalyseur de déshydratation et dans lequel la réaction de déshydratation a lieu, la séparation de l'effluent issu du dernier réacteur adiabatique de l'étape c) en un effluent comprenant de l'éthylène à une pression inférieure à 1 MPa et un effluent comprenant de l'eau, la purification d'au moins une partie de l'effluent comprenant de l'eau issu de l'étape d) et la séparation d'au moins un flux d'eau purifiée et d'au moins un flux d'éthanol non converti, le recyclage d'au moins une partie du flux d'eau purifiée issu de l'étape e) en amont de l'étape a).
摘要翻译：本发明描述了一种将乙醇负载脱水成乙烯的方法，包括将乙醇负载与交换器中的根据步骤f）再循环的至少一部分纯化水的混合物蒸发，作为交换的结果的热量与所述最后一个反应器的流出物混合，所述混合物在压力为0.1至0.4MPa的压力下被引入所述蒸发步骤中，压缩机中蒸发的混合物的压缩，蒸发和压缩的混合物的入口在入口温度为350-500℃，入口压力为0.2-1.3MPa，进入至少一个包含至少一个脱水催化剂的绝热反应器，其中发生脱水反应，将流出物与最后一个绝热的分离反应器从步骤c）进入包含低于1MPa的乙烯的流出物和包含水的流出物，净化至少一部分流出物包括来自步骤d）的水和至少一个纯化水流和至少一个未转化的乙醇流的分离，从步骤a）上游的步骤e）中的至少一部分纯化水流的再循环。

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