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1、225o.第卷第期计算机与应用化李Vl22N052005年5月28日ComputersandAppliedChemist巧May2005一NFMMEK混合溶剂萃取精馏分离正丁烯/丁烷的流程模拟与参数分析曹新波,汤志刚,,(清华大学化工系分离研究室北京100084)摘:,N一NFM。要近年来利用甲酸吗琳()及其混合溶剂萃取精馏分离正丁烯与丁烷的工艺逐渐得到工业应用然而有关该体系汽液平衡数据的文献报道极少,尚未见到该工艺流程模拟方法的报道。本文利用PRo/lI模拟软件,采用经过FACUM修正,一,的NRTL方程作为热力学方法对NFMMEK(甲乙酮)混合溶剂萃取精
2、馏分离正丁烯/丁烷的工业装置进行了流程模拟结果表明,该方法对于预测NFM一MEK一C4体系的汽液平衡具有相当的准确性。在此基础上,考察了溶剂比、回流比及溶剂组成等参数对工艺过程的影响,结果表明,合理溶剂比、溶剂组成的选择应基于经济权衡,而回流比则存在一个最佳值。关键:;;N一;;词正丁烯萃取精馏甲酞吗琳甲乙酮流程模拟中:T0283图分类号Q:A文献标识码一一:10014160200505365369文章编号()一ProcesssimulationandParameteranalysisofseParatingnButeneandbutanebyexracve
3、saonexu·ttiditilltiwiththmitreofNFormylmorPholine(NFM)andmethylethylketone(MEK)assolventCAOXinBoandTANGZhiGangea,,,,,(SPrationGrouPDePartmentofChemiealEngineeringTsinghuaUniversityBeiiing100084China)Abstet:Ineentyears,N一formylmorpholineNFManditsmixtuaregrauallyusedassolventininustt
4、oseparaten一butenera,()redd叮.andbutanebyextetjvedisrillationThereare,however,fewliteraturereportsonthevaPor一liquidequilibriumdataofthesesystems,m.,,andnoortsonsixnulationmethodofthiscessareunntsaerasuatineoutatonoannustroeesstesea-repprofudIhippimlgmpifid叮phprationofn一bureneandbutan
5、ebyexte*ivesrillationwiththemixture一foylmoolineNFMandmethylethylketoneMEKradiOfNrm印h()(),.assolvent15welleusn,withtheveeuatonoeasteonaesetoeprefo翻digPRO/11imProdNRTLqimdifidbyUNIFAChrmdymimhdThsultindieatestatthisimveteronaeseto5eonseraaeeuratetoreettevaor一ueuruo-rehprodhmdymimhd1i
6、dblyvdihPliqidqilibimfNFM.MEK一C4ssrentsass,tenueneeoseveraaeterssueassovenerato,reuxratoansoventeoonentonymohibihiflflpramhl“fediflidlmP.theseationeesson一uteneanutane5stuenteresutsowstattearoraresoventeratioansoventeo-praProfbdb1didAdhlhhhPPPil/feddlm.onentsoueeeeasconeeonoeaaneean
7、,onteo*eran,anotureuxra*0ustexstintsroeessphldbdiddbdmibldhhhdpimmfl1mihiPKeywos:n一butene,exretivedistillation,NFM,MEK,eesssua金ionrdraproimlCaoXBandTangZG.ProeesssimulationandParameteranalysisofseparatingn一Buteneandbutanebyextraetiveex一o.distillationwiththmitureofNFormylmo印hline(NF
8、M)andmethylethylketone(MEK
