摘要
采用气相色谱质谱联机技术对乙醇汽油(E10)和汽油蒸发排放物中的化学成分及含量进行了检测分析。在乙醇汽油和汽油的蒸发排放物中鉴定出27种有机化合物,主要是碳原子数为3～7的烷烃和烯烃。研究结果表明,乙醇汽油蒸发排放物的绝对含量随蒸发温度的升高而相应增加,在52℃时的排放是30℃时的近3倍;严格控制蒸汽压后,乙醇汽油与汽油在蒸发特性上没有显著差异。
In this paper evaporation emissions of gasoline and gasoline-ethanol （E10）were investigated by gas chromatograph-mass spectrometry GC/MS. The result shows that 27 constituents have been identified, in which there are mostly C3-C7 hydrocarbon of alkyl and alkenes. The evaporative emissions of E10 increased with evaporative temperature increase, and the mass of evaporative emission in 52 ℃ was about three times than that in 30 ℃.h is found that there is no significant difference between gasoline and E10 at evaporation characteristic after strictly controlling the evaporation pressure.
出处
《汽车技术》
北大核心
2006年第11期17-19,共3页
Automobile Technology
关键词
乙醇汽油
蒸发排放
气相色谱-质谱
Gasoline-ethanol,Evaporative emission,Gas chromatograph-mass Spectrometry
