催化剂对亚临界水中生物质液化行为的影响

《催化剂对亚临界水中生物质液化行为的影响》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、湖南大学硕士学位论文催化剂对亚临界水中生物质液化行为的影响姓名：谢文申请学位级别：硕士专业：环境工程指导教师：袁兴中;曾光明20080425AbstractForthedevelopmentofeconomy，thedemandoffuelbecomesgreaterandgreater．ThecarbondioxidewhichwasproducedbythemassiVefossilfuelcombustionhascausedtheseriousgreenhouseeffect，moreoVerthesefossilfuelisthenon．renewableresourc

2、es，soexploitationofusingtherenewableresourcesandtakethesustainabledeVelopmentpathcausethepeopletakemoreattention．Inrecentyears，increasingattentionhasbeenfocusedontheliquefactionofbiomassinsubcriticalwaterbyresearchersbothathomeandabroadinordertoseekanewproductbio—oilinplaceofpetroleum．Accord}

3、ngtothestatusofutilizationofabandonedbiomassmaterialsinChina，theauthorstrytoobtainbio．oilofhighqualityandhighyieldsusingstrawasstartingmaterial．Thisprocesswasaffectedbymanyfactorssuchasdifferentconditionsofpressure，heatingrate，reactiontlmeandadditionofcatalyst．Inthispaper，theeffectofthedosage

4、andkindofcatalystontheyieldandHHVofthebio—oilwasinvestigatedandtheinfluenceofthemixtureofdiH。erentcatalystswasalsostudied．Thecatalysteffectonliquefactionofstrawwasstudiedusingahigh—pressurebatchautoclaveunderthesubcriticalwater(T=573K，P=18MPa，t25min)andthebio．oilobtainedwasobservedandanalyzed

5、．ThedifferentkindsofcatalystsusedinourexperimentsincludeTi02，CaC03，Na2C03，A1203，Ni，CuO，KN03，Na2S，ZnCl2，andFeS04．Itwasfoundthatbyadditionofap．propriateamountofZnCl2couldincreasetheyieldofthebio—oiltoashighas32．90％．AndbyadditionofappropriateamountofNa2ScouldobviouslyimprovetheHHVofthebio．oiltot

6、hemaximumof34．05MJ／Kg．WhenthetwocatalystsofZnCl2andNa2Swereaddedinacertainproportioninthesametime，boththeyieldandHHVofthebio—oilcouldreachtheirmaximumof33．85％and34．42MJ／Kg，andtheresidueofthereactionreacheditsminimum．Bymanyexperiments，theresultindicatesthataddingappropriateamountofcatalystwodl

7、dincreasetheyieldandHHVofbio．oil，whiletheresidueisreduced．TheobserVationandtheanalysisforthebiologicaloilandtheresiduahavebeencarriedonl．Theresultoftheelectronmicroscopeontheresiduaindicatedthats01idresidue’sstructureencounteredtheseriousdest