化学反应工程 教案

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1、ChemicalReactionEngineeringChemicalReactionEngineering(CRE)•History-Reactionengineeringfirstaroseasadisciplinetomeettheneedsoftherapidlygrowingpetroleum,petrochemicalandchemicalindustryinthe1940sand1950s.WhatischemicalReactionEngineering–Chemicalengine

2、ering,chemistry+engineering–Reactionengineering,reaction+engineering–CREdealswithchemicallyreactivesystemsofengineeringsignificance–Chemicalreactionengineeringisthedisciplinethatquantifiestheinteractionsoftransportphenomenaandreactionkineticsinrelating

3、reactorperformancetooperatingconditionsandfeedvariables.WhystudyCRE?•CREisneededintheprocessdevelopmentforbothnewandexistingproducts•CREisnecessaryinspeedingupcommercializationofnewspecialtyandcommoditychemicals,materials(e.g.plastics),andpharmaceutica

4、ls.–Developmentoffuel-cellsforautomobiles–Developmentofbiochemical/biotechnologyprocesses–Novelprocessesforsynthesis-gasproduction–Novelreactorsexploitingtheuseofmetallocenecatalyst–Exploitationofcombinatorialcatalysisforeconomicaldevelopmentofnewproce

5、sses•CREiscriticalinimprovingenvironmentalimpactofthechemicaldevelopmentofnewprocesses.•CREisthekeycourseofchemicalengineeringmajor•FINALREASON-NedtostudyCREifyouwantchemicalengineeringdegreeSo,whatdoweexpecttolearninCREcourse?•InCRE,wewilldevelopagene

6、ralmethodologyusefulinapproachingavarietyofreactionsystems•ChemicalKinetics&ChemicalReactorDesignwillbetheheartofthiscourse•Chemicalkinetics–Dealswithhowfastareactionproceeds(reactionrates)–Dealswithmechanismofreaction–DealswiththeeffectsofP,T,composit

7、ionandcatalystsonreactionrates•Reactordesign–Dealswithsizeofreactor–Dealswithtype/configurationofreactor–Involvesconsiderationofheatandmasstransfer.Mathematicalskillsneededforthiscourse•algebraicmanipulation•differentiationandintegration•algebraicequat

8、ion,differentialequation–numericalsolutionvsanalyticsolutionChemicalReactionEngineering•optimization–function’sextremum,curvefitting•engineeringsoftware,Matlab,Maple,mathmatica?1.IdealReactorReviewReactionRateConventionsGeneralReaction: