Experimental study on drying and moisture re-adsorption kinetics of an Indonesian low rank coal

被引：61
|
作者：
LI, Xianchun [1 ,2 ,3 ]
SONG, Hui [3 ]
WANG, Qi [1 ,2 ]
MEESRI, Chatphol [4 ]
WALL, Terry [5 ]
YU, Jianglong [3 ,5 ]
机构：
[1] School of Chemical Engineering, Dalian University of Technology, Dalian
[2] School of Material Science and Engineering, University of Science and Technology Liaoning, Anshan
[3] Faculty of Energy and Power Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang
[4] Coal Technology, Banpu Public Company Limited
[5] Department of Chemical Engineering, University of Newcastle
来源：
Journal of Environmental Sciences | 2009年 / 21卷 / SUPPL. 1期
关键词：
drying kinetics; low rank coal; moisture re-adsorption;
D O I：
10.1016/S1001-0742(09)60055-3
中图分类号：
学科分类号：
摘要：
The drying kinetics of an Indonesian low rank coal and moisture re-adsorption of the dried coal using a thermobalance and a climatic chamber were investigated. Results show that the drying kinetics is best represented by two stages, as a constatnt rate stage followed by a rate decay stage. The water removal rate is dependent mainly on drying temperature and coal sample size. The apparent activation energy (E) of drying was 26.58 kJ/mol. A rate equation for drying of the coal was obtained from the experimental data. The moisture re-adsorption rate was dependent on drying temperature, coal particle size, and relative humidity of the atmosphere. © 2009 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
引用
收藏
页码：S127 / S130
页数：3
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