3种煤的气化反应动力学研究

Coal Technology(2017)

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Abstract
采用热重分析仪,考察了3种典型煤种的气化反应特性;利用缩核芯模型,模拟了3种煤的气化过程,并对拟合结果进行了分析.结果表明:随气化温度的升高,3种煤的气化反应性均增加;3种煤的气化反应性大小次序为无烟煤<烟煤<褐煤;3种煤的气化反应活化能分别为褐煤124.9 kJ/mol、烟煤154.3 kJ/mol、无烟煤100.7 kJ/mol;缩核芯模型适用于褐煤和烟煤的气化,但不适用于无烟煤.
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