利用活性填料分離共沸物系的基礎研究.pdf

1、天津大學碩士學位論文利用活性填料分離共沸物系的基礎研究姓名：張在春申請學位級別：碩士專業(yè)：制藥工程指導教師：許松林20090501ABSTRACTCapillarydistillationisarelativelynewseparationprocesswhichusescapillaryporousmediafortheseparationofmixtureItutilizesthesolidliquidinterfacialforc

2、estoaltervaporliquidequilibrium(VLE)ofmixtureinsidethecapillaryporousmediaCapillarydistillationhasadvantagesoverconventionalplatecolumnandpackedcolumndistillationintheseparationofazeotropicsystemCapillarydistillationhasu

3、niquevaporliquidtwo—phaseflowsanddifferentVLE，duetOthespecialcapillarystructureofactivepackingItwillplayanactiveroleinreducingenergyconsumption，reducinglossoforganicsolventandenvironmentprotectiontodesearchontheprinciple

4、andmechanismofcapillarydistillationThecapillaryplatehasbeenmainlystudiedatpresentbutlittleresearchworkonactivepackingwithcapillarystructurehasbeendoneabroad，andathometheresearchisblankSotakingthelead’instudyingtheactivep

5、ackingwouldhelpUSt0knowaboutthisadvancedtechniqueThepapermainlystudiedtheeffectofactivepackingwithcapillarystructureonVLEofazeotropicsystemandcarriedoutatheoreticalresearchoncapillarydistillationAmodifiedothmerstillwasde

6、signedintheworkThestillwasusedtomeasuretheVLEofethanolwatersystemat1atmApplicabilityofthemodifiedothmerstillwastestedbycomparingthedataintheworkwiththedatesinliteratureThedataobtainedfromtheworkpassedthethermodynamiccons

7、istencytest，whichcanensurethereliabilityofthedataThevaporliquidequibriumdateofethanolwaterintheabsenceofactivepackingwascorrelatedbyWilson，NRTL，VanLaarUNIQUACmodelbymeansofmaximumlikelihoodmethodandtheVLEdataofethanolwat

8、ersystemwascorrelatedbasedontheresultingmodelparameterinordertogetthe(ycaIyexp)neresultsprovedthattheVLEofethanol—watercanbepredictedwellbyWilson，NRTL，VanLaarandUNIQUACmodelThevaporliquidequibriumdateofethanol—waterinthe

9、presenceofactivepackingwasalsotestedTheeffectofactivepackingonrelativevolatility、activitycoefficientandsaturatedvaporpressurewasstudiedandeffectofamountoftheactivepackingonVLEwasalsostudiedTheactivitycoefficientsinthepre