【摘要】 3-甲基-2-丁烯-1-醇特殊的“辛烷值超增”现象表明，其具有作为汽油添加剂的巨大潜质，然而尚无关于其污染物生成的相关研究．基于对冲扩散火焰，采用激光诱导炽光法（LII）和激光诱导荧光法（LIF）探究了3-甲基-2-丁烯-1-醇及其同分异构体3-甲基-3-丁烯-1-醇（统称异戊烯醇）掺混对甲烷、乙烯燃烧多环芳香烃（PAH）和碳烟生成的影响规律．结果表明，两种异戊烯醇均促进了甲烷和乙烯PAH和碳烟的生成，其作用大小既与异戊烯醇分子结构有关，也与基础燃料自身性质有关，不同的分子结构导致其生成PAH和碳烟的路径和倾向有很大差异，3-甲基-2-丁烯-1-醇可能与C₂物质在成核反应上有更紧密的化学关联．更多还原

【Abstract】 The special phenomenon of octane hyperboosting of 3-methyl-2-buten-1-ol（prenol） shows that it has great potential as a gasoline additive. However,emissions testing on prenol and prenol blends is limited. Based on the counterflow diffusion flame,the effects of 3-methyl-2-buten-1-ol and its isomer 3-methyl-3-buten-1-ol（isoprenol）addition on polycyclic aromatic hydrocarbons（PAH）and soot formation in methane and ethylene flames were explored using laser-induced incandescence（LII）and laser-induced fluorescence（LIF）. Results show that prenol isomers promoted the production of PAH and soot in methane and ethylene flames,and the effect was related to the molecular structure of prenol isomers and the nature of the basic fuel itself. Different molecular structures led to great differences in the path and tendency of PAH and soot formation. It is possible that 3-methyl-2-buten-1-ol has a closer chemical relationship with C₂ species in the nucleation reaction.更多还原