Abstract The pyrolysis of three-component surrogate fuel for jet fuel has been studied experimentally in flow reactor using synchrotron photoionization and molecular beam mass spectrometry techniques with temperature range of 850–1150 K. Alkenes are the most abundant products in the decomposition process. Other important intermediates such as alkanes, alkynes, polycyclic aromatic hydrocarbons were also identified and quantified. Detailed kinetic reaction model involving 462 species and 3170 reactions have been developed by validating against the measured results as well as oxidation data reported previously with reasonable predictions. Detailed rate of production and sensitivity analysis indicated T135MCH mainly decay through demethylation and H-abstraction reactions. Moreover, n-propylbenzene consumption is more sensitive to CH 3 than H, while n-dodecane and T135MCH prefer H radical. The reactions between fuel and fuel-derived radicals show limited effect on surrogate fuel consumption. Reactivity changes of NPB and NC12H26 were investigated through the comparison of fuel conversion ratio. The coupling effect was displayed via the common and important sensitive reactions which are related to the H and CH3 radicals. Present experimental data and reaction model will contribute to a better understanding of combustion behavior of 3C surrogate fuel. Thus, the results of present work could contribute to comprehensive investigation of jet fuel combustion properties.

中文翻译：

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三组分替代喷气燃料的热解研究

摘要 使用同步加速器光电离和分子束质谱技术在流动反应器中实验研究了喷气燃料三组分替代燃料的热解，温度范围为 850-1150 K。烯烃是分解过程中最丰富的产物。其他重要的中间体，如烷烃、炔烃、多环芳烃也被鉴定和量化。详细的动力学反应模型涉及 462 个物种和 3170 个反应，通过对测量结果以及先前报告的氧化数据进行验证，并进行了合理的预测。详细的产率和敏感性分析表明，T135MCH 主要通过去甲基化和 H-抽提反应进行衰减。此外，正丙苯消耗对 CH 3 比 H 更敏感，而正十二烷和 T135MCH 更喜欢 H 自由基。燃料和燃料衍生自由基之间的反应对替代燃料消耗的影响有限。通过燃料转化率的比较研究了NPB和NC12H26的反应性变化。通过与 H 和 CH3 自由基相关的常见和重要的敏感反应来显示耦合效应。目前的实验数据和反应模型将有助于更好地理解 3C 替代燃料的燃烧行为。因此，当前工作的结果有助于对喷气燃料燃烧特性的综合研究。通过燃料转化率的比较研究了NPB和NC12H26的反应性变化。通过与 H 和 CH3 自由基相关的常见和重要的敏感反应来显示耦合效应。目前的实验数据和反应模型将有助于更好地了解 3C 替代燃料的燃烧行为。因此，当前工作的结果有助于对喷气燃料燃烧特性的综合研究。通过燃料转化率的比较研究了NPB和NC12H26的反应性变化。通过与 H 和 CH3 自由基相关的常见和重要的敏感反应来显示耦合效应。目前的实验数据和反应模型将有助于更好地理解 3C 替代燃料的燃烧行为。因此，当前工作的结果有助于对喷气燃料燃烧特性的综合研究。