SBA15介孔分子筛制备及其吸附和甲烷存储功能研究

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1、灌壶面萎《矿⑧天洋大薯中国近代第一所大学硕士学位论文■■■_^-踵I■■0●爿

2、0■_E啊■●¨aI学科专业：化学工程作者姓名：牵静雯指导教师：周理教授天津大学研究生院2006年1月Abstract，Beeanseofhavingorderlyholecomparedwithmicroporousmolecularsieves，theinorganicmesoporousmaterialcanbetheadsorptionorcatalyticalreactionplaceofbigmolecule．Furtherm

3、oreitspotentialusageinbigmoleculeseperationandheavyoilcatalysmakemesoporousmaterialbecomingthehotspotofresearch．Usingnon-ionicsurfactant，theStuckyoftheCaliforniaUniversitysynthesizedanewkindofmolecularsievesSBA-n．Becauseofitsgoodstructurefunction，excellenthydro

4、thermalstability，steadyframeworkstnlcture,easilypolishedinteriorsurfaceandcertainwallthicknesswitheasilyblendedelement,SBA-15isespeciallyoutstandingofSBAseries．Ithasabrightfutureinvariousdomains，suchaschemicalindustry，environmentenergy,livingcreaturetechnique，a

5、dsorption-separation，catalystandlight,electric，magnetism，etc．ThemajorcontentofourexperimentisabouttheinfluenceofvarioussynthesisfactortothephysicalpropertiesofSBA-15anddevelopitsapplicationinCH4、C02、N2adsorptionandmethanehydratestorage．UsingtheHCIdensityofO．1M．

6、wecanmakethesyntheticmaterialwiththetallestporevolumeandbiggestBETsurfacearea．Toregulatesynthesistemperature，timeandquantityofexpander1,3，5-3methylbenzenes(TMB)，wecanacquiretheporesizecontinuouslyadjustablebetween5and20nmandhi【ghBETsurfaceareaof500m—g一900m2／g．T

7、hroughrepeatingtheexperimentunderthesamecondition，WeknowthewellreduplicatepropertyofSBA一15．BymeasuringCH4，C02andN2adsorptionisothermsonthreeselectedsampleswithdifferentphysicalpropertyat275K，WediscoverSBA一15hasdifferentabilitytoadsorbthesethreekindsofgas．SoitCa

8、nbeusedasacandidateadsorbentofseparatingCH“C02andN2．ThroughthemeasurementofCH4adsorptionisothermOUSBA·15preadsorbeddifferentamountofwaterat275kWefindasharpincreaseexistedinalloftheseisotherms．AlongwitIltheincreaseofpreadsorbedwateramount。thehighestmethaneadsorp

9、tionquantityrise，incontrastthepressureofsharpincreaselowergradually：whenRwis2．92，·thebiggestmethaneadsorbedquantityis3．75timesofdrysample’S，meanwhilethesharpincreasepressure