反應(yīng)精餾合成乙酸正丁酯的工藝設(shè)計.pdf

1、蘭州大學(xué)碩士學(xué)位論文反應(yīng)精餾合成乙酸正丁酯的工藝設(shè)計姓名：王建榮申請學(xué)位級別：碩士專業(yè)：化學(xué)有機(jī)化學(xué)指導(dǎo)教師：嚴(yán)世強(qiáng)20070301蘭州大學(xué)碩上學(xué)位論文反應(yīng)精餾合成乙酸正丁酯的工藝設(shè)計AbstractTheindustrialsynthesizationofnbutylacetatewitllreactivedistillationwasinvestigatedbyexperimentsandAspenPlus，andasetofequ

2、ipmentsisdesignedatthecapabilityof6kffaInthisprocess，thecatalystofacidiccationexchangeresinwasusedaspackingfortakingplacesulfuricacidtofinishtheprocessofreactionandseparatesimultaneityFinally，coarsen—butylacetatewasprodu

3、cedcontinuallyinthebottomstreamofpackedcolumnwhichshowsthepredominancethartoldmultistepprocessResultsshowedthatthepackedcolumnwascomposedof14theoretictrays(includingpartialcondenserandreboiler)Andthestreamsoffeedandorgan

4、icrefluxarefedonthe4“trayOnthecondition，ie，splittertemperatureis20℃，organicrefluxtemperatureiS105℃，theflux，temperature，andpressureoffeedstreamwhichilastincludesnbutanolandaceticacidiS01608kmolh1，105℃，00842MPaseparately，t

5、hemoleratioofn03u)：n(Ae)2l：1isoptimum，andonemixingfeedstreamofnbutylandaceticacidiSbetterthantwopurestrealllsItwasshownthatthemoleratio，marinerandpositionofthefeed，thepositionoforganicreflux，andflowrateoftoprefluxwereall

6、affectedthequalityofproductionCoarsenbutylacetateof9570％wasproducedatthebottomstream，andazeotropeofwaterWaSleftatthetopTheSCaleuDofreactivedistillationwasmodeledwimASPENPLUS1O2baSedonpilotplantResultsshowthatthecolumndis

7、tribution，compositiondistributionandreactionratedistributionwasconsistentwithexperimentsTheprocessparametersofreactivedistillationwerecomputedTwoparallelcolumnswereneededtoperformtheprocess，andthecapacityofsinglecolumnWa

8、S3kt／aThecolumnwithdimensionofm600x13600and14trayswasdividedintothreesegmentsie，distilling，reactivedistillingandstrippingsectionswhichwas1440mm，5040mmand1620mmseparatelyThedimensionofkettleWaS西12001600whichhadbiggervolum

9、eforfavorofstableThee壤ciencyofthisprocessiSbetterthansulfuracidmethodSOtheinvestmentislowetthanitTheCOstofcatalyzerishigherthallsulfuracid，however，theCOSTSofmaterialandsteamequipmentsmaintaininganddepreciationarealllower

10、thansulfuracidmethodSothetotalproducecostiSlowerRMB350yuan／tthansulfuracidmethodItwaseaSytoproducehigherqualitynbutylacetatethansulfuracidmethodduetothepurityreaches94％fromreactivedistillingcolumnandnosidereactionKeyword