Study of adsorption equilibrium of some wet aircomposite material systems

Ioan Mamaliga1, Constantin Baciu2, Stelian Petrescu1

1 Georghe Asachi Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection, Department of Chemical Engineering, 71 Mangeron Blvd., 700050, Iasi, Romania
2 Department of Material Technology, Faculty of Material Science and Engineering, Gh. Asachi Technical University, 71 D. Mangeron, 700050, Iasi, Romania

Abstract


Equilibrium data of water vapor adsorption from wet air on several materials were experimentally determined at temperature values of 313 and 333 K and air relative humidity values ranged between 30 and 90 %. Experimental data were correlated with Langmuir and Freundlich models. The obtained results emphasize the significant difference between the water retained on the adsorbent materials impregnated with various salt solutions, and on classic adsorbents.

Keywords


activated carbon; adsorption equilibrium; calcium chloride; porous media; silica gel

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