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1、CorrespondingSolutionsforChemicalReactionEngineeringCHAPTER1OVERVIEWOFCHEMICALREACTIONENGINEERING1CHAPTER2KINETICSOFHOMOGENEOUSREACTIONS3CHAPTER3INTERPRETATIONOFBATCHREACTORDATA7CHAPTER4INTRODUCTIONTOREACTORDESIGN19CHAPTER5IDEALREACTORFORASINGLEREACTOR22CHAPTER6DES
2、IGNFORSINGLEREACTIONS26CHAPTER10CHOOSINGTHERIGHTKINDOFREACTOR32CHAPTER11BASICSOFNON-IDEALFLOW34CHAPTER18SOLIDCATALYZEDREACTIONS4343Chapter1OverviewofChemicalReactionEngineering1.1Municipalwastewatertreatmentplant.Consideramunicipalwatertreatmentplantforasmallcommun
3、ity(Fig.P1.1).Wastewater,32000m3/day,flowsthroughthetreatmentplantwithameanresidencetimeof8hr,airisbubbledthroughthetanks,andmicrobesinthetankattackandbreakdowntheorganicmaterial(organicwaste)+O2CO2+H2OAtypicalenteringfeedhasaBOD(biologicaloxygendemand)of200mgO2/li
4、ter,whiletheeffluenthasamegligibleBOD.Findtherateofreaction,ordecreaseinBODinthetreatmenttanks.Wastewater32,000m3/dayWastewaterTreatmentplantCleanwater32,000m3/day200mgO2needed/literMeanresidencetime=8hrZeroO2neededFigureP1.1Solution:1.2Coalburningelectricalpowerst
5、ation.Largecentralpowerstations(about1000MWelectrical)usingfluidingbedcombustorsmaybebuiltsomeday(seeFig.P1.2).Thesegiantswouldbefed240tonsofcoal/hr(90%C,10%H2),50%ofwhichwouldburnwithinthebatteryofprimaryfluidizedbeds,theother50%elsewhereinthesystem.Onesuggestedde
6、signwoulduseabatteryof10fluidizedbeds,each20mlong,4mwide,andcontainingsolidstoadepthof1m.Findtherateofreactionwithinthebeds,basedontheoxygenused.43Solution:43Chapter2KineticsofHomogeneousReactions2.1AreactionhasthestoichiometricequationA+B=2R.Whatistheorderofreacti
7、on?Solution:Becausewedon’tknowwhetheritisanelementaryreactionornot,wecan’ttelltheindexofthereaction.2.2Giventhereaction2NO2+1/2O2=N2O5,whatistherelationbetweentheratesofformationanddisappearanceofthethreereactioncomponents?Solution:2.3Areactionwithstoichiometricequ
8、ation0.5A+B=R+0.5Shasthefollowingrateexpression-rA=2C0.5ACBWhatistherateexpressionforthisreactionifthestoichiometricequationiswrittenasA+2B=2R+SS
