丁醇作为汽油调合组分的可行性研究

摘要

研究了丁醇与常规汽油组分以不同比例调合后油品的辛烷值、馏程、蒸气压调合特性,通过金属试片和橡胶试片在不同丁醇含量汽油中的浸泡试验,对丁醇汽油的金属腐蚀性和材料相容性进行了评价.结果表明:丁醇在调合特性方面与汽油组分的匹配性良好;丁醇汽油对除铸铁外的金属件腐蚀性很小,可用于不含铸铁的燃油进气系统中;氟橡胶、氯丁胶、丁腈胶等橡胶试件性能受丁醇汽油的影响较小,更适宜作为燃用丁醇汽油的发动机橡胶零部件或丁醇汽油储运、加油设施中的橡胶件;丁醇作为车用汽油调合组分具有可行性,调合丁醇的质量分数在10％～16％较为合理.%Bio-butanol is a renewable,environmentally friendly liquid substance.The octane number,vapor pressure and distillation characteristics of butanol were studied by blending butanol with conventional gaso line.Using the immersion test of different metals and rubbers in gasoline with different content of butanol,the effect of butanol gasoline on metal corrosion and compatibility with rubbers were evaluated.The results showed that butanol can blend well with gasoline.No metal corrosion was observed except wrought iron,thus it can be used in fuel systems without wrought iron.In addition,butanol gasoline has slight influence on fluororubber,neoprene,butadiene-acrylonitrile rubber,so these rubbers are more suitable for butanol gasoline engine,storage/transportation system as well as fueling facilities.The studies showed that butanol is feasible as a gasoline blending component if the mass fraction of butanol is 10％ 16％.