Abstract Ethylcyclohexane is a representative component of endothermic hydrocarbon fuel. The present work involved a comprehensive investigation of the pyrolysis process of ethylcyclohexane at different temperatures and times as well as its kinetics. At the test temperature T ranges from 683 to 723 K, the pyrolysis process of ethylcyclohexane conformed to the first-order kinetics. The apparent rate constants at different test temperatures were obtained, along with the corresponding Arrhenius parameters of pre-exponential factor A = 1.14 × 1015 s−1 and apparent activation energy Ea = 270 kJ/mol. The kinetics parameters for the pyrolysis of ethylcyclohexane were compared with those of several typical hydrocarbon compounds, and the results showed that thermal stabilities at given temperatures were arranged with the following order: 1,3,5-triisopropylcyclohexane

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乙基环己烷的热解动力学与机理

摘要 乙基环己烷是吸热型碳氢燃料的代表性组分。目前的工作涉及对乙基环己烷在不同温度和时间下的热解过程及其动力学的综合研究。在试验温度 T 为 683 到 723 K 时，乙基环己烷的热解过程符合一级动力学。获得了不同测试温度下的表观速率常数，以及相应的 Arrhenius 参数：指前因子 A = 1.14 × 1015 s-1 和表观活化能 Ea = 270 kJ/mol。将乙基环己烷热解的动力学参数与几种典型烃类化合物的动力学参数进行比较，结果表明在给定温度下的热稳定性按以下顺序排列：1,3,