Abstract Comparison research on the flame temperature, soot productions, the morphology, the nanostructure and the oxidation reactivity of the soot particles sampled from ethylene inverse diffusion flames with blending biodiesel surrogates of saturated methyl butyrate (MB) and unsaturated methyl crotonate (MC) were carried out. The flame temperature was measured by a thermocouple, soot morphology and nanostructures were investigated by using Transmission Electron Microscopy (TEM) and High Resolution TEM, the graphitization and oxidation reactivity were analyzed by X-ray Diffraction and Thermogravimetric Analyzer. Effects of blending rate of biodiesel surrogates of MB and MC were discussed. The results show that, with the increasing of MB additions, the flame temperatures is lifted, soot production increases firstly and then decreases because of a comprehensive effect depending on the oxygen content from oxygenated saturated MB. With MC blending, the flame temperature declines, but the soot production jumps approximately double due to the synergistic effect of C C double bonds and oxygen functional groups in oxygenated unsaturated MC. Because of oxygen components in MB and MC, soot particles sampled from MB and MC blending flames have been oxidized to be more mature with larger fringe length, bigger fringe tortuosity, higher graphitization degrees and lower oxidation reactivity.

中文翻译：

---

乙烯反扩散火焰与饱和丁酸甲酯和不饱和巴豆酸甲酯的生物柴油替代物混合中的烟尘颗粒诊断

摘要 对乙烯逆扩散火焰中的烟尘颗粒与饱和丁酸甲酯（MB）和不饱和巴豆酸甲酯（MC）混合生物柴油替代物的火焰温度、烟尘产生、形貌、纳米结构和氧化反应性进行了比较研究。出去。通过热电偶测量火焰温度，使用透射电子显微镜（TEM）和高分辨率TEM研究烟尘形态和纳米结构，通过X射线衍射和热重分析仪分析石墨化和氧化反应性。讨论了生物柴油替代物 MB 和 MC 混合比例的影响。结果表明，随着MB添加量的增加，火焰温度升高，由于综合影响取决于含氧饱和 MB 的氧含量，因此烟尘产量先增加后减少。随着 MC 混合，火焰温度下降，但由于 CC 双键和含氧不饱和 MC 中的氧官能团的协同作用，烟灰产生量增加了大约两倍。由于 MB 和 MC 中的氧成分，从 MB 和 MC 混合火焰中取样的烟尘颗粒已被氧化为更成熟，具有更大的条纹长度、更大的条纹弯曲度、更高的石墨化程度和更低的氧化反应性。但由于含氧不饱和 MC 中 CC 双键和氧官能团的协同作用，烟灰产量增加了大约一倍。由于 MB 和 MC 中的氧成分，从 MB 和 MC 混合火焰中取样的烟尘颗粒已被氧化为更成熟，具有更大的条纹长度、更大的条纹弯曲度、更高的石墨化程度和更低的氧化反应性。但由于含氧不饱和 MC 中 CC 双键和氧官能团的协同作用，烟灰产量增加了大约一倍。由于 MB 和 MC 中的氧成分，从 MB 和 MC 混合火焰中取样的烟尘颗粒已被氧化为更成熟，具有更大的条纹长度、更大的条纹弯曲度、更高的石墨化程度和更低的氧化反应性。