【摘要】 为了解使用甲醇柴油或生物柴油时醛酮类物质非常规排放的情况,该文利用高效液相色谱仪和热脱附气相色谱质谱联用仪,分析比较了3种燃料(柴油、生物柴油、甲醇柴油)的14种醛酮类排放物的排放特性。研究结果表明:与柴油相比,柴油机燃用2种代用燃料的非常规排放有较大变化,表现为1)醛酮类排放物总比排放量均有大幅上升,在标定功率工况下,甲醇柴油醛酮类排放物比柴油升高144.6%,生物柴油醛酮类排放物比柴油排放升高67.5%;2)在所测试工况下,甲醛在2种代用燃料的醛酮类排放物中仍占有最大比例,占醛酮类排放物35.3%以上;3)随着转速升高或负荷减少,代用燃料的醛酮类排放物增加。该研究对建立醛酮类排放物标准,满足环保节能要求,合理应用代用燃料具有重要的参考价值。更多还原

【Abstract】 In order to investigate carbonyl compound emission of methanol-diesel fuel and bio-diesel fuel,14 sorts of different carbonyl compound from 3 different fuels(diesel,methanol-diesel and biodiesel) were investigated using High-performance Liquid Chromatography.The result showed the unregulated emissions from the two substitute fuels were greatly variable: 1) the overall specific emission of carbonyl compound increased.Compared with diesel,the carbonyl compound emission from Methanol-diesel increased 144.6%,and emission from biodiesel increased 67.5%;2) formaldehyde was above 35.3% in the carbonyl compound emission under the testing condition;3) In general,carbonyl compound increased as speed increasing or load decreasing when engine fueled methanol-diesel and biodiesel.The study provides reference for building carbonyl compound standards for using substitute fuels and matching the environment protection energy saving requirements.更多还原