| 煤焦固定床等温CO2气化反应动力学研究 |
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| 引用本文： | 陈鸿伟,韩亮,吴亮,高松,赵振虎.煤焦固定床等温CO2气化反应动力学研究[J].华北电力大学学报,2011,38(5):95-99. |
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| 作者姓名： | 陈鸿伟 韩亮 吴亮 高松 赵振虎 |
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| 作者单位： | 华北电力大学能源动力与机械工程学院,河北保定,071003 |
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| 摘 要： | 利用自建固定床实验台研究了常压下神华煤煤焦等温CO2气化反应特性,实验分析了CO2流量、煤焦质量、气化温度和CO2分压对煤焦固定碳转化率的影响.在建立的化学反应动力学控制实验条件下,根据等转化率法计算得到煤焦气化反应活化能E为155 kJ/mol、CO2分压反应级数n为0.58;通过比对常用42种反应机理函数相关系数大...
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| 关 键 词： | 等温CO2气化 反应动力学 固定床 等转化率法 |
Kinetic study of coal char isothermal gasification by CO2 in a fixed bed reactor |
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| CHEN Hong-wei,HAN Liang,WU Liang,GAO Song,ZHAO Zhen-hu.Kinetic study of coal char isothermal gasification by CO2 in a fixed bed reactor[J].Journal of North China Electric Power University,2011,38(5):95-99. |
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| Authors: | CHEN Hong-wei HAN Liang WU Liang GAO Song ZHAO Zhen-hu |
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| Abstract: | The isothermal gasification kinetics of Shenhua coal char by carbon dioxide were studied in a fixed bed reactor under atmospheric pressure.Effect of CO2 flow rate,mass of coal char,gasification temperature and CO2 partial pressure on the conversion of fixed carbon were experimentally studied.An activation energy of 155 kJ/mol and a reaction order of 0.58 for CO2 partial pressure were obtained by the isoconversional method in the chemical controlled region.Homogeneous model was determined to be the most probable function via comparison of the related coefficients of 42 reaction functions.Finally a global CO2 gasification rate equation was developed. |
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| Keywords: | isothermal gasification by CO2 reaction kinetics fixed bed reactor isoconversional method |
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