乙醇介質(zhì)阻擋放電轉(zhuǎn)化研究.pdf

1、天津大學(xué)碩士學(xué)位論文乙醇介質(zhì)阻擋放電轉(zhuǎn)化研究姓名：曹曉磊申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)工藝指導(dǎo)教師：王保偉20090501ABSTRACTWiththepetroleum，coalandotherfuelsbecomingincreasinglyscarceandtheenvironmentalpollutionproblemsbecomingmoreandmoreserious，manycountrieshavebeguntoexplo

2、renewenergyandtechnologiesteplacefossilfuelsInavarietyofnewenergyhydrogenenergyispromisingtoapplyrecentlyThus，manyscientistsbothathomeandabroadhavepaidtheirattentiontotheefficientmethodsthatcanproducehydrogenwithlowenerg

3、yconsumptionEthanolisconsideredasgoodmatieralforproducinghydrogeninliquidfuelsbecourseofitshi曲hydrogencontentlowcost，easystorageandconvenienttransportation，Owingtothepropertyofnonequilibrium，manychemicalreactionscouldber

4、ealizeddirectlyandefficientlyundernonequilibriumplasma，whiletheyaredifficulttoimplementunderordinaryconditionsTheconversionofethanolviadielectricbarrierdischarge(DBD)isstudiedinthispaper。UnderDBDplasmatheproductsofethano

5、lconversioncontainbothgaseousproducts(H2，CO，CH4，C2II：，C2H4，C2H6，C3H$，etc)andliquidproducts(acetaldehyde，isopropanol，npropanol，2butanol，ethylacetate，wateretc)TherewasalittlecarbonblackproducedAfteroptimizingthepowersupply

6、parameters，reactorparametersandprocessconditions，theproperconditionswere：dischargegap34ram，lengthofreactionzone1050mm，dielectricthickness26mm，inputpower40W，dischargefrequency188kHz，waterbathtemperature50“CTheeffectsofadd

7、itivegasesonconversingethanolwerealsostudiedwithDBDplasmaTheconversionofethanolandtheH2yielddecreasedwhenN2，CH4orC2H6wasintroducedTheadditionofairwasinfavorofethanolconversionWhenthevolumecontentofairwas3132％，theconversi

8、onofethanoIandtheyieldofH2were6314％and1284％，respectivelyIntheprocessofintroducingethanolwithperistalticpump，theeffectsofethanolfluxvaporizationroomtemperatureandmolarratioofH20andC2HsOHonethanolconversionwereinvestigated