| 硝酸铁对贫瘦煤燃烧反应的动力学影响 |
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| 引用本文： | 陈晟,刘应书.硝酸铁对贫瘦煤燃烧反应的动力学影响[J].煤炭学报,2007,32(10):1084-1087. |
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| 作者姓名： | 陈晟 刘应书 |
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| 作者单位： | 北京科技大学 机械工程学院 热能与动力工程系，北京，100083 |
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| 摘 要： | 采用热重法考察了硝酸铁对贫瘦煤燃烧性能的影响，分析试样的TG/DTG/DTA曲线，观察硝酸铁对贫瘦煤着火点温度、最大燃烧速率点温度和燃烬点温度的影响，并计算得出硝酸铁对贫瘦煤燃烧反应的活化能E、频率因子A及反应级数n的影响.结果显示，添加硝酸铁使贫瘦煤的着火点温度、最大燃烧速率点温度和燃烬点温度都明显下降，最大燃烧速率也显著提高，添加3%的硝酸铁（质量分数）可以使贫瘦煤燃烧反应的活化能降低71 kJ/mol，频率因子和反应级数都有明显的下降，燃烧特性指数P也显示,添加硝酸铁使贫瘦煤更容易着火且增强了其燃烧的稳定性.
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| 关 键 词： | 热重法 贫瘦煤 硝酸铁 |
| 文章编号： | 0253-9993(2007)10-1084-04 |
| 收稿时间： | 2006-11-01 |
| 修稿时间： | 2006年11月1日 |
Effect of ferric nitrate on combustion kinetic characteristics of lean-meager coal |
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| CHEN Sheng,LIU Ying-shu.Effect of ferric nitrate on combustion kinetic characteristics of lean-meager coal[J].Journal of China Coal Society,2007,32(10):1084-1087. |
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| Authors: | CHEN Sheng LIU Ying-shu |
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| Abstract: | The combustion kinetics characteristics of lean-meager coal added with ferric nitrate were studied by thermal-gravimetric analysis.Each indices of ignition and burning which could reflect the combustion performance was worked out by the data from the TG/DTG/DTA curves of the samples.The results show that adding ferric nitrate can reduce the activation energy(E) by 71 kJ/mol,and both frequency factor and reaction series are decreased by adding ferric nitrate.Both the ignition temperature and burnout temperature of lean-meager coal are decreased after adding ferric nitrate.And the combustion characteristic P also reveals that adding ferric nitrate shortened the ignition time of lean-meager coal and enhanced the stability of combustion behavior. |
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| Keywords: | thermogravimentric analysis lean-meager coal ferric nitrate |
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