Determination of partial immersion enthalpy in the interaction of water and activated carbon

被引：4
|
作者：
Murillo, Y. S. [2 ]
Giraldo, L. [2 ]
Moreno-Pirajan, J. C. [1 ]
机构：
[1] Univ Los Andes, Dept Quim, Fac Ciencias, Grp Invest Solidos Porosos & Calorimetria, Bogota, Colombia
[2] Univ Nacl Colombia, Dept Quim, Fac Ciencias, Bogota, Colombia
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2011年 / 104卷 / 02期
关键词：
Enthalpy of immersion; Activated carbon; Water; Enthalpy differential relative partial enthalpies; AQUEOUS-SOLUTIONS;
D O I：
10.1007/s10973-010-1158-1
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A way to calculate the enthalpic contributions of each component of the mixture of activated carbon and water to the immersion enthalpy using the concepts of the solution enthalpies is presented. By determining the immersion enthalpies of a microporous activated carbon in water, with values that are between -18.97 and -27.21 Jg(-1), from these and the mass ratio of activated carbon and water, differential enthalpies for the activated carbon, Delta H-DIFac and water, Delta H-DIFw are calculated, and values between -15.95 and -26.81 Jg(-1) and between -19.14 and -42.45 Jg(-1), respectively are obtained. For low ratios of the mixture, the components' contributions to the immersion enthalpy of activated carbon and water differ by 3.20 Jg(-1).
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页码：555 / 559
页数：5
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