龚志军，王凯兴，武文斐
（内蒙古科技大学能源与环境学院，内蒙古包头 014010）
关键词：热重分析；煤热解；傅里叶变换红外光谱
中图分类号：TD926.4 文献标识码：A
摘要：采用热重红外（TG-FTIR）联用技术，对同一升温速率条件下褐煤、烟煤及无烟煤的热解特性进行分析，同时研究其主要的热解产物及其生成规律。结果表明：随着煤化程度的增加，热解失重量减小，热解起始温度升高，最大热解温度升高；通过傅里叶红外光谱分析，三种煤热解出的产物按生成顺序为CO2、CO、CH4；三种煤热解气体开始生成的温度不同，温度关系为褐煤<烟煤<无烟煤，即煤化程度越高，热解气体生成温度越高。
Study of coal pyrolysis characteristics
based on the TG-FTIR technology
Gong zhi-jun，Wang kai-xing，Wu wen-fei
(energy and environment School of, Inner Mongolia University of Science & Technology, Baotou,014010, China)
Key words：Thermogravity analysis； Coal pyrolysis；Fourier transform infrared spectroscopy
Abstract：The TG-FTIR was used to analyze the pyrolysis characteristic of lignite, bitumite and anthracite under the same heating rate. The pyrolysis products and their formation rules were studied. The results show that with the increase of coalification degree, the pyrolysis mass loss is reduced, the initial pyrolysis temperatureis increased, and the maximum pyrolysis temperature is increased; according to the fourier transform infrared spectroscopy, CO2 is the first pyrolysis product generated, with CO as the second and CH4 the third ; the initial generative temperature are different, and the order of generative temperature is lignite bitumite anthracite. The higher the coalification degree is, the higher the gas generative temperature is.