利用自行设计的反应器研究熔融盐催化煤与CO2的气化反应，分析反应温度、催化剂和煤种对气化反应的影响。实验结果表明，以熔融盐为催化剂的熔融盐催化煤CO2气化反应的碳转化率较单纯煤CO2气化反应有明显提高，相同反应条件下，无烟煤、贫煤、烟煤的提高幅度分别是：76.38%~172.73%、46.98%~141.87%、40.52%~137.5%；反应温度是影响熔融盐催化煤CO2气化反应的主要因素，在反应时间为90 min时，反应温度从700 ℃上升至820 ℃，无烟煤、贫煤和烟煤的碳转化率分别从0.14、0.162、0.192增至0.33、0.363和0.402，其最佳反应温度为820 ℃左右；煤种不同使气化反应效果不同，但添加熔融盐使反应活性较差的煤种也有很好的气化效果。利用动力学均相模型与未反应缩核模型对实验数据进行处理，得出气化反应动力学参数。

The molten salt catalytic gasification kinetics of coal with carbon dioxide was carried out in the reactor designed by self. The reaction temperature, catalyst and coal type were considered in the experiment. Experiment results show, the conversion of coal catalyzed by molten salts in the gasification of coal with CO2 has increased markedly compared to the gasification without the molten salts. In the same reaction conditions, the conversion of anthracite coal, lean coal and bituminous coal is respectively promoted by 76.38%~ 172.73%, 46.98%~141.87%, 40.52%~137.5%; The reaction temperature is the main factor in the gasification of coal with CO2 catalyzed by molten salts，when the reaction time is 90 min, the reaction temperature increases from 700 ℃ to 820 ℃, the conversion of anthracite coal, lean coal and bituminous coal increase respectively from 0.14, 0.162, 0.192 to 0.33, 0.363, 0.402, the best reaction temperature is about 820℃;The different coal type makes different gasification results, but the less active coal has the excellent gasification results after adding the catalyst. The test data were processed with the homogeneous model and the shrinking core mode1 to obtain the kinetic parameters of the gasification reaction.

国家自然科学基金项目(50876030)。