摘要
采用差示热天平获得上海程桥污水处理厂污泥的TG、DTG曲线,对干燥污泥的热解行为及其动力学规律采用热重分析法进行了研究。实验结果表明:干燥污泥的热解过程中有2个失重速率比较高的区域,这2个区域以挥发分的析出为主。通过热重分析法,求解了这2个区域的化学反应动力学参数——频率因子A和活化能E,对其反应机理进行了分析。
The TG and DTG curve of sludge from Shanghai Chengqiao Sewage Treatment Plant were derived from tests of differential thermal balance.Pyrolysis characteristics and kinetics of dried sludge were investigated using thermogravimetric analysis.The result showed there are two temperature ranges in which the sludge quickly lost weight,these two phases are due to release of the volatiles.With the thermogravimetry,the kinetics parameters for the chemical reactions of the two ranges were calculated and the sludge pyrolytic reaction mechanism is discussed.
出处
《能源研究与利用》
2005年第3期31-34,共4页
Energy Research & Utilization
