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1、河北工業(yè)大學碩士學位論文醋酸甲酯水解催化反應精餾技術的研究姓名:孫莉君申請學位級別:碩士專業(yè):化學工藝指導教師:李柏春20040301河北工業(yè)太學碩士學位論文醋酸甲酶水解催化反應精餾技術的研究摘要作為開發(fā)醋黻甲酯水解新工芯的前期工作,本文針對醋酸甲醞水解催化反成煺餾新工蕊,建立了;}乎鬻綴夏寢精鑲速率摟墼幫過程蔽攮豹詩算方法。潺適模弒計算,考察了承隅比、回流進料比等對醋酸甲酯水解率及塔釜醋酸濃度的影響。并得到了下一階段工業(yè)化試驗戇王蕊條釋,雋工攮純生產(chǎn)撬侯了技本支持。河北正業(yè)犬舉化學工程研究所在年產(chǎn)3.5萬噸聚乙烯醇(PVA)生產(chǎn)裝
2、置中采用新型CTST愛藏鞲餒垮叛,逡行了醋酸警囂承轔愛寂耱壤塔熟王整純:躐驗。通過王鼗位試驗,確定了礅產(chǎn)的工蕊條件:醋酸甲黼迸料8mVh,水酯比3.0,回流避料比3.0,轉化率達75%左右。節(jié)省蒸汽滾耗14秀噫/每。通過試驗結聚與模擬結果的比較,驗證了所建立的非平衡級模型及計算方法的合蠼校。鋅對不霹的工佟按贅來諼繁模型疑可謂參數(shù),可浚對工監(jiān)張生產(chǎn)避褥捂導。熒縫誕;醋酸暈辯反應糖馕繼純凌緩囂平甏緞?chuàng)Ь镫`簿墼璧鬈塑奎璧堡垡星塞塑黧整查塑璧橐薯玨ESTUDYoNCmbYTICDIS下ILL甬心IoNoF艇囂篁疆¥LAC囂1潺譬囂H¥移爻o
3、LySlSABSTRACTAstheearlyworktobuildthenewartofcatalyticdistillationhydrolysisofmethylacetate,anon-equilibrittmratemodelandthecalculationmethodbasedOnitwasestablished.Theinfluencesofthemoleratioofwaterfeedtomethylacetatefeed,refluxfeedtomethylacetatefeedandthefeedingposi
4、tiononconversionandconcentrationofaceticacidinbottomfeedareexaminedthroughsimulation.Theseresultsaregoo硅guidetotheindustrializationexperiments,andpmvidbasisfortheindustrialdesign.TheindustrializationexperimentofthecatalyticdistillationhydrolysisofmethylacetateWaScarrie
5、doutbytheChemicalFa'lgineeringInstituteofHebeiUniversityofTechnology.IntheexperimentstheCTSTwereusedinthecatalyticdistillationcolumninthepolyvinylalcohol(PVA)iadus姆production翻站溺of35,000露Wegottheoperationtermoftheindustryproductionprocessthatconnectdownthroughtheindustr
6、ializationexperiments:themethylacetatefeed8m3/h。H20/MeOAc(moYm01)3。筑reflux/MeOAc3.0。Theconversionofmethylacetateishighcrthan70%and140,000tonsteamsweresavedperyear,Theexperimentdatavcerein馨。醚agreementwiththecalculatedresults,provingthatthe13Dn-equilibriumratemodelandthe
7、calculationmethodbasedonitarereliable.Itisconcludedthatthismodelcanbehelpfultotheindustryproductionthroughcontrollingthevariables+KEYWORDS:methylacetate,reactivedistillation,catalyticdistillation,non-equilibriumratemodel,simulation,hydrolysis鎏!!三蝥鑾耋堡耋鬟堡簍塞拯丁大寫絨,j、寫字母;口—
8、—氣渡有效相界面積,m‰^詫——壤辯既袤顙,mi赫3A——帽翠截疆積,m2。辯l——鐨震系數(shù)逆薤薄,撤警kmoi。C——摩爾濃度,mol/l。e——緞努數(shù)C?!鎵貉嗳?,kJ,kmolK。D——擴散系數(shù)m2/S。e——終燕速率,k穩(wěn)