アセチレン-空気予混合火炎内での多環芳香族化合物とC_2の生成

概要

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Formation behavior of polycyclic aromatic hydrocarbons such as benzene and naphthalene, and C_2 in laminar one-dimensional premixed acetylene-air flame is numerically studied by considering 47 species with 168 elementary reactions. Although benzene and naphthalene are mainly formed in the visible flame region, they are also generated in the downstream region with decreasing burned gas temperature. Although the peak height of benzene concentration at φ=2.5 is lower than that at φ=1.0, the concentration of intermediate species for growing into polycyclic aromatic hydrocarbons at φ=2.5 is higher than that at φ=1. C_2 is formed in the downstream region of high temperature at φ=2.5, while at φ=1, it is formed in the narrow region behind the visible flame region having the concentration peak at about 2000K. Even in the flame at φ=2.5, the formation of C_2 decreases with decreasing burned gas temperature.
一般社団法人日本機械学会の論文
1992-10-25