Thermodynamics of water sorption in clay

被引：19
|
作者：
Chemkhi, S
Zagrouba, F
Bellagi, A
机构：
[1] LEPT, Inst Natl Rech Sci & Tech, Hammam Lif 2050, Tunisia
[2] ENIM, Monastir 5000, Tunisia
来源：
DESALINATION | 2004年 / 166卷 / 1-3期
关键词：
desorption isotherms; clay; GAB model; thermodynamic; heat of sorption; sorption entropy;
D O I：
10.1016/j.desal.2004.06.094
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Experimental data on desorption isotherms of three types of clay at different temperatures (40, 50 and 60degreesC) were determined using a static method. The results were fitted by the famous Guggenheim-Anderson-deBoer (GAB) model. The thermodynamic functions, differential heat of sorption, net integral enthalpy and entropy, were evaluated at several moisture contents. Heat of sorption decreased with the moisture content and the trend became asymptotic as the moisture content of 0.01 (d.b.) was approached.
引用
收藏
页码：393 / 399
页数：7
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