1、山東理工大學碩士學位論文生物質(zhì)快速熱解規(guī)律的研究姓名：修雙寧申請學位級別：碩士專業(yè)：農(nóng)業(yè)機械化工程指導(dǎo)教師：易維明2003.5.1AStudyonFastPyrolysisforBiomassAbstractTheachievementandprogressmadeinbiomassthermalconversiontechnologieswereintroducedbrieflyandtheexistingtechnologiesof

2、biomasspyrolysisforproducingbiooilwerestudiedindetailinthethesisThestudyofbiomasspyrolysismechanismisessentialforthedesignofbiomassfastpyrolysisapparatusesThepyrolysisofcornstalkhasbeenstudiedinalaminarentrainedflowreact

3、orwiththeaimofdeterminingtheextentofthermaldecompositionofbiomassparticlesathighheatingrate(morethan1000℃／s)Variablesinvestigatedweretractiontemperaturebetween750and950Kandresidencetimebetween100and250msPulverizedcornsta

4、lkparticlesize，rangingbetween0II7and0】73ramwasnotcontrolledasavariableinthisstudyPlasmajetflowwasusedastheheatingsourcetoachieveastableandcontrollablehightemperaturegasflowforthefastpyrolysisofbiomassinthereactorThesolid

5、productofpyrolysiscollectedbyawatercooledcollectingtubeandacyclonecollectorwasusedfordeterminingthevolatiIizedfractionofthebiomassbeingpyrolyzedviatheashCOntentinthesolidasatracerThusthecarvesofbiomassdevolatiJjzationcha

6、racteristicswerethenobtainedTheeffectsandmechanismofthereactiontemperatureandresidencetimeonthepyrolysiswereanalyzedTheresearchresultswouldprovideafirst—handdataforfurtherstudyofbiomasspyrolysismechanismAccordingtotheexp

7、erimentaldataandArrheniusformula，byanalyzingthebiomass’sfrequencyfactorandparametersofactivationenergy，afirstorderkineticmodelofbiomasspyrolysisinthereactorwasalsoproposedFromthismodel，thevolatilemattervaryingwiththereac

8、tiontemperatureandresidencetimewascalculatedTheresultsfromthemodelandexperimentwerethencomparedandanalyzedInordertostudythedifferencesofkineticparametersbetweentheslowpyrolysisandflashpyrolysisofbiomass，thepyrolysisofcor

9、nstalkandwheatstrawwasalsoconductedbyusingthermogrametricanalyzeratlowheatingrateThekineticparametersofagriculturalresiduespyrolysisandafirst—orderreactionmodelwerealsoproposedinthestudyTheexperimentalresultsshowsthatthe