Study of pressure drop in fixed, fluidized and spouted bed of several adsorbent materials

Ioan Solomon, Oana Roxana Hauta, Marius Sebastian Secula, Ioan Mamaliga

Gheorghe Asachi Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection, Department of Chemical Engineering, 73 Prof. Dr. Docent Dimitrie Mangeron Street, 700050 Iasi, Romania


An experimental study on the hydrodynamics of fixed, fluidized and spouted granular bed was performed. With this aim two commercial adsorbent materials and a composite material obtained by impregnation with a hygroscopic inorganic salt were employed. The fluid phase consisted in dry air. The obtained results highlight the influence of grain size, material density and roughness over pressure drop and gas velocity. Increasing grain size leads to decreasing pressure drop and increasing material density leads to increasing pressure drop. The impregnation proved to have no significant effect on the pressure drop. Pressure drop and gas velocity data were also calculated by means of equations available in literature, and compared with the experimental ones.


adsorption; fixed bed; fluidized bed; pressure drop; spouted bed

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