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ID:36660886
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页数:7页
时间:2019-05-13
《考虑内部热集成的乙二醇反应精馏系统设计与优化-安维中》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第64卷第12期化工学报Vol.64No.122013年12月CIESCJournalDecember2013檭檭檭檭檭殐殐檭檭研究论文檭考虑内部热集成的乙二醇反应精馏檭殐殐檭檭檭檭檭系统设计与优化安维中1,林子昕1,江月1,陈菲1,周立明2,朱建民2(1中国海洋大学化学化工学院,山东青岛266100;2辽宁奥克化学集团,辽宁辽阳111003)摘要:针对环氧乙烷水合制乙二醇反应精馏过程反应热的利用和系统能量更大集成问题,提出一种将反应段和提馏段分割、从反应段移出热量供提馏段加热的内部热集成反应精
2、馏塔(R-HIDiC)的设计。利用AspenPlus模拟软件,分析了内部热集成的可能性,优化了内部热交换量及其分布,给出了一种不需要再沸器的能量最大集成方案。研究表明,与传统的反应精馏塔相比,通过对内部热集成进行优化,乙二醇反应精馏塔可取消再沸器,系统需要的能量只由环氧乙烷水合反应热和外部压缩机提供,其操作费用将降低约47.2%,总费用将降低约39.1%,体现了其技术和经济优越性。关键词:反应精馏;乙二醇;反应热;内部热集成DOI:10.3969/j.issn.0438-1157.2013.12
3、.054中图分类号:TQ223.24;TQ021.8文献标志码:A文章编号:0438-1157(2013)12-4634-07Designandoptimizationofaninternallyheatintegratedreactivedistillationcolumnforethyleneglycolproduction1,LINZixin1,JIANGYue1,CHENFei1,ZHOULiming2,ZHUJianmin2ANWeizhong(1DepartmentofChemica
4、lEngineering,OceanUniversityofChina,Qingdao266100,Shandong,China;2LiaoningOxiranchemGroup,Liaoyang111003,Liaoning,China)Abstract:Theproblemtoseekfurtherheatintegrationforthehydrationofethyleneoxidebyreactivedistillation(RD)toproduceethyleneglycol,whi
5、chinvolvesreactionswithhighlythermaleffect,wasinvestigated.Aninnovativeprocess,internallyheat-integratedRDcolumn(R-HIDiC),wasproposedtomaximizeenergyefficiencyofthesystem,inwhichthereactivesectionandstrippingsectionwaspartitionedintotwopartswithdiffe
6、rentoperatingpressuressothattheinternalheattransferbetweenreactivesectionandstrippingsectionwasallowed.Steady-statesimulationsbasedonAspenPlussoftwarewereperformedtoinvestigatethefeasibilityofinternalheatintegration,andanenergyintegrationdesignwithou
7、ttheneedofreboilerwasprovidedbyoptimizingtheheatdistributioninR-HIDiC.Theresultsobtaineddemonstratedthat,comparingwiththeconventionaldesign,theproposedR-HIDiCdesigndidnotneedareboiler,thus,thetotalenergyinputcanbesuppliedbytheheatofreactionofthehydra
8、tionofethyleneoxideandtheelectricitypowerofcompressor,whichleadstoareductionoftheoperatingandtotalcostby47.2%and39.1%,respectively.Keywords:reactivedistillation;ethyleneglycol;reactionheat;internalheatintegration2013-08-16收到初稿,2013-08-26收到修改稿。Receive
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