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52102(X)81028ComPuet。dpiledChe8VoL25,N.o10oetober,2X()8DMF,’(,,,2131):DMF,DMF、。ASPENPLUSRADFRACNRTL,、,DMF。、,()。ASPENPuLs,,。,DMF,。,10%、20%25%DMF,,78%、79%87%。:DMF;;;ASPENPLUS:,rE624:A:10014160(2008)101212ThehnoloigcalersearchesofrrceoveyrOfDMFbymulti.enctstiiliatonYangDemjngandGuoXinlian`(FulytofChemiatyr&Chemicalngineeirng,JiangsuPolyteChnicUnsrytt,Changzhou,213164,Jiangsu,China)A。,ct:BceauseofhtehihgeneeonsumitPonforereovOfDMF,Mulit-effectidstillationpcoressesineludingwtoowter,there-towerandfourtowerweerPorpo,de.SimulationsfOmluti~etcone~ntandeounterCuatstillaitonetratingdiffeerntmasseoneen-atrtionDMFweermdebySAPENPLUSsoftwaerwhiehRADFRACblockandNRTLphysiealrtysetweerused.thetimum。m6Oneonidtions(ineludingtheperssudisitrbuitosn)weerdatemundeboedonhtenimumeneeosnumptionandhteviarableofhtedistillaet,whieh15watervaper.Basedonhteersults,hteeolumns`parametesrandaerasOfhteheaterexehangeweealeulat-dehydraulieblcokOfASPENPULS.hTeesreacrhesshowhtathettheer~eeteountecruerrntdistillation15htebestereoveteehnol-ogyandtheOPtimumopeiartoneonditionsweerdetemrined,inersopsnetotheobjeetivefunctionoftheleastviaue,hteiartoofmulti-ecetidistllationexnditutosingleeolumnexndituers.eRsulstshowhtathethtereeffeeteounetcruerrntdisitllationeansvaeen-egyreonsumon78%,79%and87%eompaerdthmonocolumnidsitlliatonhwenating10%,20%and25%~5eoneen-ionDMF.Keywo:erevoeofDMF,multi.effeetidstillation,eneeonsumtPion,ASPENpLUSsoftwaerYangDMandGuoXL.hTeteehnoloigealerseacrhesforereoveofDMFbymultieffeetdistillation.ComuPtesrandAppliedChest,20()8,25(10):12021206.MDFMDF,「’,2]。MDF,DMF。,〔’,〕。,,,。6[。〕,9[”〕。sAPENPLus,MDF,〔’6”],,,DMF。1DMF,、,,,。,l2。:2X()7.101;:200825:(1966),,,,,.2X)(8,25(10):DMF1203(2)、:t。。t,。:)。t.(d`.15℃17℃)。(l);(2)。Fi1hTree.effeeteoneun℃ntdiistlliatonl.-.-`22.1,、,1。1Table1Basiedataofsimuliaton.eiralnumberIlelllsymbo】VUe”ding。,feedieomospiitonfengstate10h“U10..…,J-l、、10、20、25(wt%)ù、nU:00ó`.。。ó。-ùóonpó“。O!.01.522533,54,0NtFi`2ecteounteuntdisitllation·2DMF,,。ASPENPuLS,:(l),5%,0.95DJC.J:o0.9950.99()DMFpiurytOfDMFDMFoveyrofDMF2.2,ASPEN(RADFRAC)NRTL,,、、,23。2DMFTable2Re.u】ofmooneol~andmulti·effeeteocnunntdiistlliatonforecroveyrofviaredDMFeoneentartion.monocolulnntwocthtree.effeelfoureet121231234TlTlTl4TTlTlTl4TDMF10%caseforlo%DMFP/kaP/k『rHL/kHrNtm/℃T/℃A/0/cKal/Hr/k『Hr101.390(X).O43920.0l55.53lX().01148.672218.42.66E+71.02E+5101.312.061X().029()5.0524608134.011131523.21lX().0249.42101.7184.321946.86.13E+62.27E+4195.039.02925.091.14119.48120.561470.63.slE+61.35E+4101.335X().03273.5l01。181(.01102.5712.016()5.O4975.5l22.4849.4284.29340.028().019880l00.91137.92138.)1268.52.67E+69.50E+3195.027X().02187.0l00.93119.48l20.9()101.32440.02391.2101.03100.02103.6812.01065.03567.6l22.0049.4284.32DMF20%casefor20%DMF/kaPD/k『HrrHNt/℃T/℃A/Keal/Hr/k『Hr101.38).02X.0133.42lX().01148.631173.41.52E+75.46E+4101.35340.04378.01l1.471).02103.《1716.45.25E+61.96E+412.02670.06888.6l22.9949.4384.26285.03710.02671.281.08131.86134.351126.73.64E+61.26E+4140.0305003385.5101.171《.35115.5417.01250.05《XX).0ll2.3156.6193.15570.03180.02《7.091.94156.93159.511144.03.22E+69.02E+3340.02630.02414.3100.89137.93142.55140.01720.03113.291.09109.35122.5617.0480.03984.0l01.%56.6393.1712042()X8,25(10).________DMF25%~for25%DMFP/kPaD/rHkg/rHNtm/℃/℃A/cKrH/rH101.375.016275.01l3.l01148.66966.51.29E+74.63E+4101.30.03998.4l01.38100.02103.1414.84.36E+61.E+412.03430.04630.5l02.7349.4484.24205.02850.02194.581.03121.07123.721110.62.86E+61.03E+4101.32545.02468.791.11100.02l.5112.02115.02897.5l02.1649.4484.27380.02130.033.690.87141.86l4.49987.72.29E+67.10E+3210.02030.01745.890.85121.83125.34101.31850.01887.0l00.981.021.0212.0X().01950.0l21.8049.84.303DMFTab】e3Res』.ofmoonofumnandmitectceunntidistl】ationfor。veyrof~edDMFconcention.DMF10%~for10DMFP/kPaD/rHkrH/℃T/℃A/MZKerHk/rH101.3)043920.0l55.531X().01148.672218.462.66E+7102E+5101.33305.07601.51l2.46lX().01148.721039.255.18E+62.15E+452.057).05130.0l31.6282.3383.50192.01845.05073.791.77118.99173.731X)1.173.22E6l`33E+4101.370.03088.3101.20!00.02102.2755.036)03025.8l21.3183.7484.50335.02705.03410.0l01.41137.41198.67978.692.71E+69.IE+3185.02).02184.0l00.97117.83120.57101.323X().02116.0101.051X().01101.0554.02X).O21.0l21.4183.2883.89DMF20%~for20%DMFP/kPaD/krHrHNt。/℃T/℃A/KcaJ/rH/rH101.38.02X().0133.421X】.01148.631173.4《】1.52E+75.46E+4101.33310.05296.0ll2.20l.0314864831.744.76E+61.73E+450.04700.03995.0l21.5281.3583.53101.321.03564.081.80100.03148.6994().503.18E+61.15E+450.02770.02576.l01.2781.3584.5225.03(.02618.0ll1.37.8966.33195.01759.52709.691.45119.50173.31899.032.45E+67.gE+3101.32150.02X(X).0l01.lX().02l.3550.02X(.01740.091.1281.3583.2325.021】.01785.0l01.17.9866.12DMF%~for25%DMFP/kaPD/kHrrHNt/℃T/℃A/MZKea]H:/k『rII101.375.016275.0ll3.60lX().01148,66966.51.29E+74.63E+4101.333(X).04686.0l02.131.02148.67783.14.63E+61.E+450.04210.03843.7l01.4981.3584.02205.0226().03051.081.57121.08176.50769.72.22E+61.1)E+4101.32550.02384.291.14100.02l.2652.027X).02349.0l01.22823384.263.018.02318.491.30139.972.12794.62.07E+67.2OE+3185.01450.01803.790.93117.83123.56101.318(X).01602.0l00.98100.021