生物質(zhì)熱裂解機理試驗研究.pdf

1、Z掌博士學(xué)位論文⑧作者姓名堡送‘魚塑姿塹焦學(xué)科c專業(yè))三堡墊塹堡所在學(xué)院越魚絲盈墨疊堂醫(yī)學(xué)號10008078提交日期2QQ5生旦一／廳一A塑蘭查蘭堡主堂焦堡苧ABSTRACTTosolvetheproblemcausedbyenergyshortageandenvironmentalpollution，theexploitationandutilizationofbiomassenergyhasbeenpaidmoreattention

2、sduringtheseyearsPyrolysisisnotonlyanindependentprocessforbiomassconversion，butalsoakeystageinbiomassgasificationandcombustionItissignificanttounderstandthemechanismofbiomasspyrolysis，UnderthesupportsofNationalNaturalSci

3、entificFoundation(50025618，50176046)，adetailedresearchwascarryoutouttounderstandthepyrolysismechanismofbiomassPyrolysiskineticstudyofcellulose、hemicelluloseandligninWaSdoneonathermo—gravimetricbalancecoupledwithaFourierT

4、ransformInfraredspectrometry(FTIR)KineticexperimentalresultshowedthathemicelluloseandngninhadadifferentshapeintheTGandDTGcurvefromcellulose，whilecorrespondingkineticparameterswerealsobecalculatedAndtheinfluenceofsalts011

5、biomasspyrolysiskineticsWaSalsoinvestigatedAcomprehensiveexperimentswerecarriedoutOilaradiationheatreactortoinvestigatetheinfluenceofthereactionparameters011theproductionofbio—oil，charandgaSforthepyrolysisofcellulose，hem

6、icelluloseandligninCombinedwithGC—FTIRanalysis，experimentalresultshowedthatbio—oilproducedfromcellulosemainlycomposedofLGandHAA，alsoofsomeacidandketonecompounds，biooilfromxylanmainlycomposedofacidcompoundsandaldehydecomp

7、ounds，whilebio—oilfromlignincomposedofphenolcompoundswithdifferentfunctionalgroupssuchaSmethoxylgroup，alkylgroup，hydroxygroupThedifferenceofpyrolysischaracteristicamongcellulosexyl柚andligninwasstudiedForthecatalysisimpor

8、tanceofmetallicsaltsonbiomasspyrolysis，theeffectofK，Ca2，Na十，andM92ontheproductsdistributionofbiomasspyrolysiswasinvestigatedontheradiationreactorbyaddingmetallicsaltsandfollowedacidwashingMetallicsaltshadmoreinfluenceont

9、hepyrolysisofcellulosethanthatofhemicelluloseandlignlnAndpotassiumacceleratedthecrackingandsplittingprocessoflargemoleculestoproducemoregasandcharOnthebaSisofTG—FTIRexperimentsandmechanismstudyonourradiationreactorthemec