生物油特性分析、酯化提质和品质评价研究

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1、东南大学硕士学位论文ABSTRACTAstheliquidproductofbiomassfastpyrolysis，bio-oilcouldbeapotentialliquidfuelandchemicalraWmaterialinthefuturebecauseofitsabundantrawmaterialssources，renewablecapability，convenienttotransportationandhighenergydensity．Itwouldbehelpfultotakecomplete

2、analysisandassessmefitofthiscomplicateorganicmixturewhichcouldbedevelopedintohighqualityliquidfuel．Thisarticle，whereanalysisandassessmentofthebio-oilandstudyforupgradingofqualitywerediscussed，camefromsecondarysubjectofthe973programofcoupledintegratedoptimizationt

3、heoryandmodelresearchonbiomassliquefactionprocess(2007CB210208)．Thephysical，chemicalcharactersandcompositionofbio—oilweresystematicallyanalyzed．Itturnedoutthatbio—oilWasacomplexcompoundwithhighwatercontent,stronglyacidicandcorrosive，hi【ghviscosity,lowcalorificval

4、ue，highsolidcontent，highoxygencontentandpoorthermalstability．Accordingt0FTⅡtanalysisandGC-MSanalysis．itshowedthatthealmostallcompositionsofbin—oilwereoxygenatedcompounds，suchasphenols，flll'RnS，acids，aldehydes，ketones，alcohols，sugars，ethersandSOon．TGWasadoptedtoan

5、alysisthebio-oiicombustioncharacteristics．Resultsshowedthatthebio—oilwaspronetoevaporateandcombust．Asthereweresomeproblemsofbio-oil，suchashi【ghwatercontent,strongacidandcorrosion，highviscosityandlowcalorificvalue，theexperimentofesterificationofthebio-oilWascarded

6、outinaself-buildtestbenchinordertoenhanceitsqualityandmakeitapossiblesubstituteforfossilfuels．ThreekindsofsolidacidS042"／Si02．Ti02，S042竹i02andS042／Zr02．Ti02werechosenascatalystsforesterificationreactionstoimprovequality．ThereactionofaceticacidandethanolWasselecte

7、daLsamodeltestwhichcouldbeusedtoexamineesterificationactivityofthesethreekindsofsolidacid．Undertheirrespectiveoptimaloperatingconditions，thebestconversionrateofaceticacidwere76．67％，60．73％and50．69％．Onthebaseofmodeltest,homogeneouscatalysismechanismwasusedtoresearc

8、hthereactionkineticsofaceticacidandethanolinthesolidacidcatalystS042／Si02-Ti02．111edynamicequationofesterificationandthecorrespondingactivationenergyE=38．633LV