| 应用TG-FTIR研究鹤岗烟煤的热解特性 |
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| 引用本文： | 熊方勋,吴少华,林伟刚.应用TG-FTIR研究鹤岗烟煤的热解特性[J].电站系统工程,2006,22(5):26-28. |
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| 作者姓名： | 熊方勋 吴少华 林伟刚 |
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| 作者单位： | 1. 哈尔滨工业大学
2. 中国科学院过程工程研究所 |
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| 摘 要： | 采用TG-FTIR联用技术研究了鹤岗烟煤的热解过程。研究表明,在升温速率为30℃/min时,该煤的热解过程可以分为4个阶段,其中在430～650℃区间发生剧烈热解反应,DTG曲线在489℃时出现最大值。热解气体的逸出情况由FTIR进行实时检测,并且定性分析了CH4、CO2、CO和焦油的析出情况。通过比较TG/DTG曲线和FTIR数据,发现TG和FTIR的分析结果是一致的。假定煤热解反应为一级反应模型,分不同的温度区间采用Coats-Redfern法求解煤热解反应动力学参数,计算结果与实验符合较好。
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| 关 键 词： | 烟煤 热解 TG-FTIR 动力学 |
| 文章编号： | 1005-006X（2006）05-0026-03 |
| 收稿时间： | 2006-05-20 |
| 修稿时间： | 2006年5月20日 |
Study on Hegang Bituminous Coal Pyrolysis by TG-FTIR |
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| XIONG Fang-xun,WU Shao-hua,LIN Wei-gang.Study on Hegang Bituminous Coal Pyrolysis by TG-FTIR[J].Power System Engineering,2006,22(5):26-28. |
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| Authors: | XIONG Fang-xun WU Shao-hua LIN Wei-gang |
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| Abstract: | The pyrolysis process of Hegang bituminous coal was investigated by simultaneous TG-FTIR(Thermogravimetry-Fourier Transform Infrared).The results show that,at the heating rate of 30℃/min,the pyrolysis process can be divided into four stages,wherein the primary pyrolytic reaction occurs in the range of 430~650℃,and DTG(Differential Thermogravimetry) curve reaches the maximum at 489℃.The instantaneous gas evolution was detected by FTIR and the evolutions of CH4,CO2,CO and tar were qualitatively analyzed.FTIR data was compared with TG/DTG curves and an agreement between TG and FTIR results was observed.Coal pyrolysis process was described as first-order reaction model.Kinetic parameters were determined by Coats-Redfern method in different temperature ranges and the calculation results accord with the experiment well. |
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| Keywords: | TG-FTIR |
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