摘要
采用综合热分析仪研究了褐煤、烟煤和无烟煤的低温氧化对TG-DSC曲线的影响。研究结果表明:在煤氧化热解的过程中,褐煤和烟煤均能吸附氧并与氧反应;在吸氧增重阶段,褐煤和无烟煤的质量降低,烟煤的质量增加;与原样相比,煤氧化样的燃点降低;在失水减重阶段,烟煤失去水分质量至最低点时其温度升高。
This paper applied thermal analyzer to study how the low temperatrue oxidation of lignite, bituminous coal and anthracite affected the TG - DSC curve. In the process of oxidation thermal decomposition of coal, lignite and bituminite coal could absorb and react with oxygen. In the stage of absorbing oxygen and raising weight, the weight of lignite and anthracite decreased, while the weight of bituminite increased. Compared with primary samples, the ignition point of oxidized coal sample was lower; in the stage of losing moisture and weight, the temperature increased when bituminite lost the moisture untill the lowest weight point.
出处
《煤质技术》
2014年第2期41-44,共4页
Coal Quality Technology
关键词
煤
低温氧化
TG-DSC曲线
coal
low temperature oxidation
TG - DSC curve
