| N_2/CO_2/H_2O抑制甲烷爆炸化学动力学机理分析 |
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| 引用本文： | 李成兵.N_2/CO_2/H_2O抑制甲烷爆炸化学动力学机理分析[J].中国安全科学学报,2010,20(8). |
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| 作者姓名： | 李成兵 |
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| 摘 要： | 应用敏感性分析方法对N2,CO2和H2O抑制甲烷爆炸的化学动力学机理进行了理论分析,结果表明:在N2,CO2和H2O的抑制作用下,在甲烷氧化链式反应进程中起关键"桥梁"作用的自由基——CH3和HCO的生成受到强烈抑制,从而使得甲烷氧化链式反应进程受到影响和破坏;CO2和H2O除了具有N2所具有的抑燃、抑爆特性外,还会参与甲烷氧化链式反应,并对CH4氧化放热产生阻碍作用。
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| 关 键 词： | 爆炸 敏感性分析 基元反应 自由基 化学动力学 |
Chemical Kinetics Mechanism Analysis of N2/CO2/H2O Suppressing Methane Explosion |
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| LI Cheng-bing.Chemical Kinetics Mechanism Analysis of N2/CO2/H2O Suppressing Methane Explosion[J].China Safety Science Journal,2010,20(8). |
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| Authors: | LI Cheng-bing |
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| Abstract: | Sensitivity analysis method is applied to analyze the chemical kinetics mechanism of N2,CO2 and H2O suppressing methane explosion.The results indicate that the formation of CH3 and HCO,which play a key "bridge" role in the process of methane oxidation chain reactions,is strongly inhibited by N2,CO2 and H2O.Methane oxidation chain reaction process is damaged.In addition to possessing the suppression characteristics of N2,CO2 and H2O can also participate in methane oxidation chain reactions,and hinder CH4 oxidation heat release. |
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| Keywords: | explosion sensitivity analysis element reaction free radical chemical kinetics |
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