基于色譜和熱重法分析纖維素熱解特性.pdf

1、重慶大學碩士學位論文基于色譜和熱重法分析纖維素熱解特性姓名：閆麗云申請學位級別：碩士專業(yè)：動力工程及工程熱物理指導教師：劉朝20090604ABSTRACTBiomassene唧as鋤impo脅ltp砥ofrenewableene唧h硒arousedgreat刪oniIl付1eworld111ebiom嬲sconsistsofcellulose，hemicellulose，1i印oseCelluloseist11emaillpartfo

2、ritScontentsillbiomaSs(50％)Celluloseisa1(indofhugem01ecul盯p01)，Inerf0姍edbyco徹ectionbe咐een盧(14)嘿1ycosidicbondofD91ucoseandmolecularsmlctureisdistinctSotllech撇ctersofcellulosespyrolysisarefocusedonByusingSC2000gas—chromato

3、聊hyandt11emo黟avime臼可觚alysis，廿1emlesofg嬲eousproductsa11dnlepyr01ysischaract“sticsweresnJdieduIlderttleconditionsofdi婦衙enthe弛gratesandp礬iclesizeswitllnleChaIlgesof吐1epyrolysistemperan】Iealldcarrigasnowveloci哆Theresultsshow

4、：①nemaingasproductsofcellulosepyrolysisconsistedofH2、CO、CH4、C02、C2H4、C2H6、C2H2鋤dC3H6Asmep)，rolysisternperaturemcrcases，nlecomentofmultic砷onhydrogellreducesbecauseof廿leseconddecornposition，whiIemehydrogen’sconterltreVerse

5、dto廿1eab0Venecarbon擊oXidea11dcarbonmonoxide，scontentsfirsti11creases，tllendecreaSesThecontelltofc拍onmonoxideisiIlvariablebaSicallyfinally111etotalcontentofgasproductSincreasesw池p”olysisternp蹦咖∽rise②When廿1ec硎erg嬲flowveloc

6、ity血crease五rom01m3mupt0011m3m，廿lehydrogen’scontemgrows的m16％t042％However，whenmecarriergasnowVelocityiIlcreasest002m3／ll，mecontentofhydrogendeclinesbyconlparisonwimO11m’mneChangetendencyofcarbonmonoxide’scomentisoppositeMe

7、mane，scontenth雒norem積kableChangeCarbondio)【idecontentreducesaRerincreasesThecontentofcarbondioxideincreases，thelldecreases⑨111epyrolysisprocessisdividedint0fourp眥s，namelydecompositionalldabsorbtionofwat％10werdegree0fp01y

8、merization，maillpyr01ysisa11dslowdecompositionofre叫1antsThefastermeheatiIlgrateiIlcreases，廿lemoremememlalhysteresisisExperimentswimdi債rentsizesofsamplesshowmat廿lepyrolysischaraCt耐sticsofsmallsizesanlplesisdecidedbych鋤ica