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1、J.Anal.Appl.Pyrolysis85(2009)287–293ContentslistsavailableatScienceDirectJournalofAnalyticalandAppliedPyrolysisjournalhomepage:www.elsevier.com/locate/jaapHigh-pressuregasificationreactivityofbiomasscharsproducedatdifferenttemperaturesabbaaaa,*,J.J.PisaJ.Fermoso,C.Steva
2、nov,B.Moghtaderi,B.Arias,C.Pevida,M.G.Plaza,F.RubieraaInstitutoNacionaldelCarbo´n,CSIC,Apartado73,33080Oviedo,SpainbPriorityResearchCentreforEnergy,ChemicalEngineering,FacultyofEngineeringandBuiltEnvironment,TheUniversityofNewcastle,UniversityDrive,Callaghan,NSW2308,Au
3、straliaARTICLEINFOABSTRACTArticlehistory:TheknowledgeofbiomasschargasificationkineticsisofconsiderableimportanceinthedesignofReceived19May2008advancedbiomassgasifiers,someofwhichoperateathighpressures.InthepresentworktheeffectsofAccepted28September2008pyrolysistemperatur
4、e,totalpressureandCO2concentrationonthegasificationofbiomasscharshaveAvailableonline9October2008beenstudiedusingthethermogravimetricapproach.Thecharswereobtainedbypyrolysisinadroptubefurnacereactorattemperaturesof1000and14008C.ThegasificationtestswerecarriedoutinaKeyword
5、s:pressurizedthermogravimetricanalyser(PTGA)atdifferenttemperatures,pressuresandCO2concen-Biomasstrations.Thereactivitymeasurementswereconductedunderthekineticallycontrolledregime,andthreeRapidpyrolysisnth-orderkineticmodelsaswellastheLangmuir–Hinshelwoodmodelwereappli
6、edtodeterminetheCharreactivitykineticparameters.PressureKineticmodelsß2008ElsevierB.V.Allrightsreserved.1.IntroductionInordertopredictthebehaviourofcoalduringgasification,severalmodelshavebeenproposedwithdifferentdegreesofInrecentyearsincreasinginteresthasbeenshowninpre
7、ssurizedcomplexity[5,6].However,highlycomplexmathematicalmodelsgasificationsystemsduetotheirpotentiallyhighthermalefficiencyaredifficulttoapplyandarenotfrequentlyusedforpracticalandreducedenvironmentalimpact.Moreover,thegasificationofpurposes.Forthisreason,forapproximateco
8、mputationsindesignbiomassfuels(e.g.wood-basedmaterials,agriculturalresidues,calculations,simplermodelsarepreferred[7]
