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应用QDTA/T/EGD/GC在线联同技术及其装置测定了在N_2气下五种不同煤化程度的煤种之DTA/EGD/GC热解特性曲线。实验结果可提供如下三方面的信息和数据:(1)唯有中等煤化程度的煤,才在一次碳化反应阶段的曲线上呈现出台阶状的放热效应,由这种煤可获得性能良好的焦炭;(2)取得了在碳化过程中的各项表征温度和碳化气特征;(3)提出了焦煤的热解、碳化反应历程及其机理。
The DTA / EGD / GC pyrolysis characteristic curves of coal with five different degrees of coalification under N_2 gas were determined by QDTA / T / EGD / GC on-line synergistic technique and its equipment. The results of the experiment provide the following three aspects of information and data: (1) Only coal of medium coal rank shows a stepwise exothermic effect on the curve of a carbonization reaction stage, from which good coke ; (2) Various characterization temperatures and carbonation characteristics were obtained during the carbonization process; (3) Pyrolysis and carbonization reactions of coking coal and its mechanism were proposed.