天然油脂制備生物柴油新技術的研究.pdf

1、分類導UDC密級學位論文指導教師姓名申請學位級別專業(yè)名稱研究方向論文提交日期論文答辯日期揚凱華疊劍盎巫塞豆塑掛芒焦鱟壟三墨壅塞塑魔絲逐掛焦墊盎答辯委員會主席評閱人北京中國林業(yè)科學研究院ABSTRACTABSTRACTBio—dieselisoneoftheidealsubstituteenergyresourcesAtpresent，themainhurdle，whichrestrictsthedevelopmentofbio—dies

2、elinourcountryishighcostProducingbiodieselwithaneconomicalwayisthemostimportantthingnowInthisstudytakenintoaccounttheinteriorcompositionofoilandfatsuchasrapeseedsoil，thepartwhichcflabesynthesizedindustrialproductwillbein

3、dustrializedfirst，theremainderwillbeusedasbio—diesel弧eissueofcostingCallbesolvedinthewayThemainCOntentsandresultsareasfollow：1Theextractionprocesswasthatthetemperaturewas90。C，theextractiontimewas120minutesRapeseedoilsyie

4、ldwas38O％atabovetechnologyconditions2Alkali，whichemployedascatalysisinthetransesterificationreaction，wasmoreeffectivethanacidItwasfomadthatKOHiSthebestcatalysisTheeffectofalcohol—to—oil(mole)、catalystdosage、temperaturean

5、dreactiontimeonthemethylesteryieldwasalsodiscussedinthepaperByorthogonalityexperiment，ItWasindicatedthattheoptimalprocessconditionforthetransesterificationreactionofrapeseedsoilwasmethanoltooilmolarratioat6：1，1％KOH(W％)of

6、oil，reactiontemperaturewasabout60℃reactiontimewasabout90minutesItwasshowedthatfattyacidmethylesteryieldwasover98％atbesttechnologyconditions3Therecoveryandrefiningtechnologyofglycerolfromtheby—productoftransesterification

7、ofrapeseedoilwithmethanOlwasresearchedItwasfoundthatthebestoperationconditionfortherecoveryandrefiningtechnologyofglycerolwasthatthebottomlayeroftransesterificationproductionwasdilutedwithmethanol，thenWasneutralizedtopH=

8、5060byaddingH3P04nlctotalyieldofglycerolwasupto30％madertheseseparationconditionsItwasobtained，throughcomputingbythemeansofdensitythattheglycerolpurityintheendproductwas97％ComparedIRspectrumofselgmadeglycerolwithstandardg

9、lycerol，itwasfoundthatbothofthemwerealmostthesame4Thedimmeryieldwasonly34％onconditionthataluminumwasemployedascatalyst，reactiontemperatureWaS240。C，andreactiontimeWOS8h5Thecetanevalueimproverofbio—diesel，isooctylnitrate，w

10、asstudiedintiffsdissertationThestructureofisooctylnitratewasanalyzedthroughitsIRspectrUnlWhencomparedIRspectrumofselfmadeisooctylnitratewithstandardisooctylnitrate，itwasshowedthatbothofthemweremuchatoue6Cetanevalueofbiod