Adsorption of organic pollutants over microporous solids investigated by microcalorimetry techniques |
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| Authors: | B Dragoi V Rakic E Dumitriu A Auroux |
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| Institution: | 1.Faculty of Chemical Engineering and Environmental Protection,Technical University,Iasi,Romania;2.Faculty of Agriculture,University of Beograd,Nemanjina 6,Serbia;3.Institut de Recherches sur la Catalyse et l’Environnement de Lyon,Villeurbanne Cedex,France |
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| Abstract: | This work is focused on the gas and liquid-phase adsorption of pollutants: propanol, 2-butanone, phenol and nicotine onto
zeolites (H-BETA, H-ZSM-5, H-MCM-22, and clinoptilolite). Textural properties and origin of zeolites were taken into account
as criteria of adsorbents selection. The aldehyde and the ketone were adsorbed in the gas phase using microcalorimetry linked
to a volumetric line to evaluate adsorption. Adsorptions in water were carried out for phenol and nicotine and the evolved
heats during adsorption were measured by a differential heat flow reaction calorimeter with stirring. Results are discussed
in relation with the pore sizes and various interactions which could occur between the adsorbent and the adsorbate. |
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