![乙醇脱水成为乙烯的低能耗方法](/CN/2013/8/12/images/201380061953.jpg)
基本信息:
- 专利标题: 乙醇脱水成为乙烯的低能耗方法
- 专利标题(英):Low-energy consumption method for dehydrating ethanol into ethylene
- 申请号:CN201380061953.2 申请日:2013-11-18
- 公开(公告)号:CN104981447A 公开(公告)日:2015-10-14
- 发明人: V.库帕尔 , N.图谢 , T.普莱内沃克斯 , E.科贝尔 , S.弗勒里耶 , W.弗迈伦 , D.米努克斯 , P.德斯梅特 , C.阿当 , N.内斯特伦科
- 申请人: IFP新能源公司 , 道达尔研究及科技公司
- 申请人地址: 法国吕埃-马迈松
- 专利权人: IFP新能源公司,道达尔研究及科技公司
- 当前专利权人: IFP新能源公司,道达尔研究及科技公司
- 当前专利权人地址: 法国吕埃-马迈松
- 代理机构: 中国专利代理(香港)有限公司
- 代理人: 孟慧岚; 杨思捷
- 优先权: 1203201 2012.11.27 FR
- 国际申请: PCT/FR2013/052767 2013.11.18
- 国际公布: WO2014/083260 FR 2014.06.05
- 进入国家日期: 2015-05-27
- 主分类号: C07C1/24
- IPC分类号: C07C1/24 ; C07C11/04 ; C07C29/76 ; C07C31/08 ; C07C41/09 ; C07C43/06
The invention relates to a method for dehydrating an ethanol feedstock into ethylene, comprising: (a) a step of preheating said ethanol feedstock via heat exchange with the effluent from step (e), (b) a step of pretreating the ethanol feedstock in order to obtain a pretreated ethanol feedstock, (c) a step of vaporising, in an exchanger, a vaporisation feedstock comprising said pretreated ethanol feedstock and at least a portion of the treated water stream recycled in step (h), in order to obtain a vaporised feedstock, (d) a step of compressing said vaporised feedstock in order to obtain a compressed feedstock, (e) a step of dehydrating said compressed feedstock in at least one adiabatic reactor, (f) a step of separating the effluent from the last adiabatic reactor of step (e) into an ethylene-containing effluent and a water-containing effluent, (g) a step of purifying at least a portion of the water-containing effluent from step (f) and separating at least one treated water stream and at least one non-converted ethanol stream, (h) a step of recycling at least a portion of the treated water stream from step (g) upstream of step (c).
公开/授权文献:
- CN104981447B 乙醇脱水成为乙烯的低能耗方法 公开/授权日:2018-02-02