掺有柴油组分的稀薄甲烷层流火焰第I部分：n）丁基苯
A Lean Methane Prelixed Laminar Flame Doped witg Components of Diesel Fuel. Part I: n)Butylbenzene
摘要：
为了更好地理解柴油组分燃烧过程中的化学反应，研究了掺有正丁基苯的甲烷层流贫燃预混火焰的结构。入口气体含有7.1%（摩尔）的甲烷、36.8%的氧气和0.96%的正丁基苯，对应于0.74的当量比和13.5%的C10 H14/CH 4比。在333 K时，以氩气作稀释剂，在6.7kPa的压力下，燃烧器中的气体速度为49.2cm/s。定量的物质包括通常的甲烷C 0-C2燃烧产物，但也包括16种C3-C5烃，7种C1-C3含氧化合物，以及20种芳族产物，即苯，甲苯，苯乙炔，苯乙烯，乙苯，二甲苯，烯丙基苯，丙苯，枯烯，甲基苯乙烯，丁烯基苯，茚，茚满，萘，苯酚，苯甲醛，苯甲醚，苄醇，苯并呋喃，和C10 H10的异构体（1-甲基茚、二氢萘、丁二烯基苯）。正丁基苯的氧化提出了一个新的机制，其预测是在令人满意的协议与测量物种分布在火焰和流动反应器实验。通过流量分析，得出了正丁基苯消耗的主要反应途径。
英文摘要：
To better understand the chemistry involved during the combustion of components of diesel fuel, the structure of a laminar lean premixed methane flame doped with n-butylbenzene has been investigated. The inlet gases contained 7.1% (molar) of methane, 36.8% of oxygen and 0.96% of n-butylbenzene corresponding to an equivalence ratio of 0.74 and a ratio C10H14 / CH4 of 13.5%. The flame has been stabilized on a burner at a pressure of 6.7 kPa using argon as diluent, with a gas velocity at the burner of 49.2 cm/s at 333 K. Quantified species included the usual methane C0-C2 combustion products, but also 16 C3-C5 hydrocarbons, 7 C1-C3 oxygenated compounds, as well as 20 aromatic products, namely benzene, toluene, phenylacetylene, styrene, ethylbenzene, xylenes, allylbenzene, propylbenzene, cumene, methylstyrenes, butenylbenzenes, indene, indane, naphthalene, phenol, benzaldehyde, anisole, benzylalcohol, benzofuran, and isomers of C10H10 (1-methylindene, dihydronaphtalene, butadienylbenzene). A new mechanism for the oxidation of n-butylbenzene is proposed whose predictions are in satisfactory agreement with measured species profiles in flames and flow reactor experiments. The main reaction pathways of consumption of n butylbenzene have been derived from flow rate analyses.
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