Abstract:The combustion behaviors of dried sludge, coal and their mixtures were investigated by a thermo-gravimetric analysis (TGA) in the temperature range from 20 to 1000℃ with the heating rate of 25℃/min. The coal sample had one weight loss peak at the temperature of 500℃ while dried sludge had two at the temperature of 280 and 480℃. When the ratio of dried sludge in the blend was appropriate, the values of both weight loss rate peak and maximum combustion rate increased while the appearance temperature decreased. At the same time, the ignition performance of coal could be improved by co-combustion with dried sludge, which also was conductive to the stability of coal combustion. Combustion characteristics of the blends were improved and the flammability index was between the two values of coal and dried sludge.
李洋洋, 金宜英, 李欢. 采用热重分析法研究煤掺烧干污泥燃烧特性[J]. 中国环境科学, 2011, 31(3): 408-411.
LI Yang-Yang, JIN Yi-Ying, LI Huan. Thermo-gravimetric analysis and co-combustion characteristics of dried sludge and coal. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(3): 408-411.