通过两轮汽油油品试验,分别从燃油挥发性、烃类成分、硫含量等方面进行研究分析,探讨汽油品质对轻型车辆排放的影响。试验结果表明,燃油的挥发性对碳氢化合物排放影响显著;燃油中随着芳烃含量的增加,碳氢排放也有明显增加趋势。文中针对我国汽油品质的现状,提出了一些建议。 Through two rounds of petrol oil tests, the paper studies and analyzes the aspects of fuel volatility, hydrocarbon composition and sulfur content respectively to discuss the influence of petrol quality on the emission of light vehicles. The test results show that the volatility of the fuel has a significant impact on the hydrocarbon emissions; with the increase of aromatics content in the fuel, the hydrocarbon emission also increases obviously. In view of the status quo of gasoline quality in our country, some suggestions are put forward.