Reduction of iron oxides by carbon in a circulating fluidized bed reactor循环流化床反应器中碳还原铁氧化物地研究.pdf

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1、ReductionofironoxidesbycarboninacirculatingfluidizedbedreactorIyengar,SrinivasanPublishedin:PowderTechnologyDOI:10.1016/S0032-5910(01)00484-3Published:2002-01-01LinktopublicationCitationforpublishedversion(APA):Iyengar,S.(2002).Reductionofironoxidesbycarboninacirculatingfluidizedbedre

2、actor.PowderTechnology,124(April),28-39.DOI:10.1016/S0032-5910(01)00484-3GeneralrightsCopyrightandmoralrightsforthepublicationsmadeaccessibleinthepublicportalareretainedbytheauthorsand/orothercopyrightownersanditisaconditionofaccessingpublicationsthatusersrecogniseandabidebythelegalre

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5、er.com/locate/powtecReductionofironoxidesbycarboninacirculatingfluidizedbedreactorN.S.Srinivasan*DivisionofMaterialsEngineering,LundUniversity,P.O.Box118,22100,Lund,SwedenReceived1May2001;receivedinrevisedform3September2001;accepted17September2001AbstractAtheoreticalanalysisofthereduc

6、tionofironoxidesbycarboninacirculatingfluidizedbedreactorisconsideredinthisstudy.Ironoxideandcoalparticlesarefastfluidizedinthemaincolumnbyahotstreamofgases(N2COCO2H2H2O).Theanalysisconsiderskineticandhydrodynamicfactorsinthereactorandassumesthereductionreactionbycarbontoproceedthroug

7、hgaseousintermediates.Usingreportedbasedata,themodelhasbeenusedtogeneratethetemperatureandcompositionprofilesinthechargeaswellasthegasphase,bothinthemainaswellasreturncolumns.Undertheseconditions,thechangeinoxygencontentofanisolatedironoxideparticleduringitspassagethroughtheCFBhasbeen

8、compu