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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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铜基催化剂上甲烷催化燃烧反应动力学特性研究
, PP. 1140-1145
Keywords: 含氧煤层气,催化燃烧,反应动力学
Abstract:
？采用固定床微分反应器，在常压、450~500℃、甲烷体积分数10%~35%条件下，进行铜基催化剂上甲烷催化燃烧动力学特性研究。研究表明，甲烷分压对反应速率影响显著，而氧气分压的影响可以忽略。采用最小二乘法进行动力学模型参数估计，建立的反应动力学模型为-rch4=1.61×107×e-108000/rt×pch40.5。检验结果表明，所建模型与实验数据良好相容，是适宜和可信的。根据实验结果推断甲烷催化燃烧分两步进行，首先氧气快速与铜基催化剂上活性空位点反应，形成吸附氧气分子；随后吸附氧气分子和甲烷分子反应，生成二氧化碳和水。
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