试析微乳化乙醇柴油燃料的开发

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1、华南理工大学硕士学位论文微乳化乙醇柴油燃料的开发姓名：陈军申请学位级别：硕士专业：化学工程指导教师：钱宇20040501摘要摘要地球上石油资源的有限及环境保护的重要性，使各国开展了代用燃料的研究。乙醇是可再生含氧清洁燃料，汽化潜热大，能及时参与燃烧，适合作为代用或部分代用燃料，因此越来越受到重视。本论文主要是研制开发微乳化乙醇柴油燃料，即通过在柴油中掺入一定量燃料乙醇，起到缓解化石类燃料的消耗。同时，可降低柴油车尾气中的污染物排放，起到节能和环保的双重作用。但乙醇和柴油易于发生相分离，特别是有微量水

2、存在时，故需加入适当的添加剂保持乙醇柴油稳定。本论文研制开发微乳化乙醇柴油主要内容研究有：稳定添加剂的筛选；添加剂加入量与水容忍性关系的研究；通过体系拟三元相图研究寻找乙醇与柴油的稳定区域；测定乙醇柴浦理化指标和怠速燃烧排放试验，考察其实际使用效能。本文开发的微乳化乙醇柴油能在0～40"C的环境中稳定存放三个月以上。通过测定表明，乙醇柴油的十六烷值、粘度、凝点等理化指标和纯柴油相差不大，实车怠速试验时的燃烧排放情况也显示，NO。的排放及烟度等具有不同程度的降低。关键词：乙醇柴油；微乳化；添加剂、拟三

3、元相图；理化指标；怠速试验华南理工大学硕士学位论文ABSTRACTMoreandmorepeoplehaverealizedthelimitednessofthefossilresourcesandtheimportanceofprotectingenvironment．Manycountrieshavebeguntoresearchthesubstitutefuelactively．Ethanolisarenewableandclean—burningfuelwhichhasgreatvapori

4、zationheat．Anditcancombustrapidly，Soitcanbeusedassubstitutefuelorpartialsubstitutefuel．Inthispaper，thenewmicroemulsifieationethanol—diesel(E—diesel)fuelwhichcanbegainedthroughmixingethanolintodieselisdeveloped．TheapplicationofE·-dieselfuelcandecreaseth

5、econsumptionofnon—·renewablepetroleumandreducedieselengineexhaustsemission．E-dieselwillproducemuchlessexhaustemissionsthannetdiesel，itcanplayanimportantroleinprotectingenvironmentandsavingenergysources．Butbecauseoftheexistenceoftracewater，ethanolwillse

6、paratefromdiesel．TokeepE·dieselsteady,additiveswillbeaddedintoE—diesel．Theresearchcontentsincludemainlyasfollows：selectingthesuitableadditiveresearchingtherelationbetweentheadditivequantityandwatertolerance；searchingthesteadyregionofE··dieselbypseudo-t

7、ernaryphasediagram；testingthephysical—chemicalpropertiesofE—diesel，discussingthefeasibilityofusingE—dieselascleanfuelthroughthedieselengineidletest．Aethanoldieselmicro—emulsificationblendfuelhasbeendeveloped．Itcankeepstableforatleast3monthsat0～40。C．The

8、physical—chemicalpropertiesofethanoldieselmicro—emulsificationfuelandtheemissionofdieselengineexhaustshavebeenalsostudiedKeywords：ethanoldiesel；micro—emulsification；additive；pseudo·ternaryphasediagram；physical—chemicalproperties；idletes