氣體膜分離中非理想現(xiàn)象的研究

1、大連理工大學(xué)碩士學(xué)位論文氣體膜分離中非理想現(xiàn)象的研究姓名：魏關(guān)鋒申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：賀高紅20000601ABSTACTSincehydrogenrecoveryandoxygenenrichmentareindustrializedonlargescale，alotofresearchingworkhavebeendoneongaspermeationmechanisminmembrane，Howeverwith

2、thethoroughstudyandfastdevelopmentofindustrialpracticeactivitysomephenomenaexistedandsomenewoneshappeninginmembraneseparationprocesshavemoreandmoresignificanteffectonmembraneseparationThesefactorsmaketheactualseparationp

3、rocessesdivergefromthatofidealseparationInthispaperairseparationandgasdehydrationaretookforexamplestostudytheeffectsonseparationresultsofsomenonidealelementsOxygenandNitrogenenrichmentisakindofgeneralmembranegasseparatio

4、nsystemInexperimentmanyfactorsincludingconcentrationpolarizationandcomponentcompetitionarefoundCoexistatthesametime，butitisdifficulttostudythemsolelySoaparameterNiisin廿oducedinthispaperwhichCallbeusedtOestimatetheinnunce

5、ofallthesefactorsonseparationTemperature，retentategasquantityandfeedgaspressurearestudiedontheireffctsonseparationExperimentresultsshowthatthehigerthetemperatureisandthemoreretentategasnse，thelialedifferencethatliesbetwe

6、enactualandidealseparationprocessesOnthecontraryraisingfeedpressureleadtheactualseparationtodepartingfromtheidealone，ThesethreefactorsexertinflunceOilseparationthroughconcentrationpolarizationandcomponentcompetitionAsreg

7、ardtogasdehydration，therearealsosomeobviousnonidealfactorswhichhaveimportanteffectsonseparationOnconsideringKelvinequationandthestructureofcompositemembrane，capillarycondensationphenomenonOCCurintinyporesofthespongysuppo