超临界流体分离技术 Special Topics on Separation Using.ppt

《超临界流体分离技术 Special Topics on Separation Using.ppt》由会员上传分享，免费在线阅读，更多相关内容在PPT专区-天天文库。

1、超臨界流體分離技術SpecialTopicsonSeparationUsingSupercriticalFluids化學工程學系與環境工程學系碩博士班選修課程國立中興大學化材館ContentofLecturesOverviewonSeparationProcesseswithscFluidsSolubilityinSupercriticalFluids/PhaseEquilibriaExtractionfromSolidSubstrates(I,II)CountercurrentMultistageExtraction(I

2、,II)TopicsISolventCycle,Heat/MassTransfer,PrecipitationSupercriticalFluidChromatography,SFCMembraneSeparationEnzymaticReactionsinscFluidsforSeparationCrystallizationinSupercriticalFluidsGeneralAspectsofSeparationProcessesVideosVisitedtoSupercriticalFluidPlantsTopi

3、csIIRawMaterialsSeparationCleanAirContaminantsEffluentAirReactionRecoverySeparationPurificationSeparationSeparationRecycleSideProductsProductsEffluentWaterContaminantsCleanWaterGeneralizedProcessSchemeFocusonChemistryandReactorTechnologySeparationTechnologywasAdde

4、dAfterwardsforRecoveryandPurificationofProductsfromReactionMixturesMinimisationofWasteDischargedintotheEnvironmentChemicalEngineeringEducationFocussedonLargeScalePetrochemicalSeparationsSeparationTechnologyinthePastConsequences:ChemistryandReactorTechnologyCapabil

5、itiesLimitsMaximumYieldsMinimalTimeforSeparationTechnologyDevelopmentMostNewProcessesuseExistingSeparationTechnologyDriveforProductPurityandEnvironmentalImpactMinimi-zationResultsinIncreasedProductionSeparationTechnologyinthePastBestKnownMostUsedStrengths:LimitedE

6、quipmentSimpleStagingEconomyofScaleEnergyCostsReliableDesignandScaleUpDistillationConventionalProcessLowRelativeVolatilitiesAzeotropesCloseBoilingPointsIsomersFeedCompositionLowConcentrationswithHighBoilingPointOverlappingBoilingPointsNon-VolatileComponentsExtreme

7、Conditions(Pressure,Temperature)SmallCapacitiesProductDegradationFoulingUneconomicalforEnvironmentalApplicationsLimitstoDistillationDriversforNewSeparationConceptsSustainableProcessesHigherMolecularEfficienciesNewFeedstockChemistryReductionEnergyConsumptionEnviron

8、mentallyBenignMassSeparatiingAgentsMinimalConsumptionSeparatingAgentsCleanerandPurerProductsContaminationwithMassSeparatingAgentsRemovalofUndesiredCompo