罗振敏;张斯琪;王超;

• 1:西安科技大学安全科学与工程学院
• 2:西安科技大学陕西省工业过程安全与应急救援工程技术研究中心
• 3:西安科技大学陕西省煤火灾害防治重点实验室

摘要(Abstract)：

为探究CO对甲烷链式爆炸的影响,利用CHEMKIN软件中的GRI-Mech 3.0反应机理,研究加入CO后对自由基H·,O·和·OH的影响规律和甲烷关键基元反应的变化。模拟结果表明,加入CO后,爆炸产物CO_x的生成量增加,NO_x的生成量减少,且随着甲烷体积分数的增加,CO对CO_x生成量的影响减小,而对NO_x生成量的影响增大。自由基H·的最大摩尔分数总是随CO体积分数的增加而增加;当甲烷处于富氧状态时,自由基O·和·OH的最大摩尔分数随CO体积分数的增加而增加;当甲烷处于当量状态和贫氧状态时,则反之。当甲烷处于富氧状态时,CO的加入使得R155和R156成为促进甲烷消耗的最重要反应步,生成更多自由基O·和·OH,进而促进甲烷爆炸;当甲烷处于当量状态和贫氧状态时,CO的加入对影响甲烷消耗的关键基元反应及其敏感性的影响很小。

关键词(KeyWords)： 甲烷爆炸;氮氧化物;自由基;基元反应;敏感性分析

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助项目(2017YFC0804702);; 国家自然科学基金(51674193);; 陕西省自然科学基础研究计划联合基金项目(2019JLM-9);; 中国博士后科学基金面上项目(2019M663780)

作者(Author): 罗振敏;张斯琪;王超;

Email:

DOI: 10.13800/j.cnki.xakjdxxb.2020.0401

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