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

页码：S127 / S130

页数：3

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