| 铬/氢/空气体系焚烧动力学模型修正 |
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| 引用本文： | 吕雪峰,叶萍,陈龙,于溯源. 铬/氢/空气体系焚烧动力学模型修正[J]. 燃烧科学与技术, 2012, 0(2): 169-174 |
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| 作者姓名： | 吕雪峰 叶萍 陈龙 于溯源 |
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| 作者单位： | 1. 华北电力大学核科学与工程学院,北京102206
2. 清华大学核能与新能源技术研究院,北京100084 |
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| 基金项目： | 国家自然科学基金资助项目(50476010);教育部博士学科点专项科研基金资助项目(20070079013);中央高校基本科研业务费专项资金资助项目(11MG14) |
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| 摘 要： | 建立完善的含铬废物焚烧动力学模型,有利于对含铬废物焚烧体系进行动力学研究,便于进一步分析剧毒六价铬生成的影响因素,尽而提出减少六价铬排放措施.应用量子化学理论和过渡态理论分析了铬/氢/空气体系焚烧动力学模型中反应的微观机理,并对该动力学模型进行修正.研究表明,该焚烧动力学模型中有4个总包反应,每个总包反应都由两个基元反应组成.修正后的铬/氢/空气体系焚烧动力学模型删除了4个总包反应,增加了6个基元反应.最后,还计算出新增加的6个基元反应的反应速率常数
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| 关 键 词： | 铬 焚烧 动力学模型 微观机理 |
Modification on Cr/H/Air Incineration Kinetic Model |
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| Lü Xue-feng,YE Ping,CHEN Long,YU Su-yuan. Modification on Cr/H/Air Incineration Kinetic Model[J]. Journal of Combustion Science and Technology, 2012, 0(2): 169-174 |
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| Authors: | Lü Xue-feng YE Ping CHEN Long YU Su-yuan |
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| Affiliation: | 1.School of Nuclear Science and Engineering,North China Electric Power University,Beijing 102206,China;2.Institute of Nuclear and Energy Technology,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Establishment of completed incineration kinetic model is the foundation of studing Cr-containing waste incineration kinetics,analyzing various effect factors on hexavalent chromium compounds,and proposing the method for decreasing the content of hexavalent chromiums.The reaction mechanisms of the reactions in the Cr/H/Air incineration kinetic model were studied with quantum chemistry theory and transition state theory,then the kinetic model was modified.Numerical results show that there are four overall reactions in the kinetic model,and each of the overall reactions consists of two elementary reactions,respectively.The four overall reactions are neglected and six elementary reactions are added to the Cr/H/air reaction kinetic model.Finally,the rate constants of the six newly added elementary reactions are calculated. |
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| Keywords: | chromium incineration kinetic model micro-mechanism |
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