不同成因类型煤的差热分析

A Differential Thermal Analysis on Different Kinds of Genetic Coals

对四种煤进行了差热分析、溶剂抽提和红外光谱等试验。结果表明：不同成因类型煤在加热碳化中化学变化不同，差热曲线差异显著。煤热解反应的总热效应是放热的。褐煤与烟煤的差热曲线相近，其特点是有两个热解放热峰。

xperiments have been made on four kinds of genetic coals with a differential thermal analysis a solvent extraction and an infra-red absorption spectrography.The results show that the chemical reactions of different kinds of genetic coals are different in the low-temperature carbonization.The differential thermal curves of four kinds of genetic coals vary obviously.The total heats of coal's pyrolysis reactions are thermopositive.The differential thermal curve of the lignite coal is similar to that of the bituminous coal in the two thermopositive peak values.