Adsorption of chlorobenzene and benzene on #gamma#-Al_2O_3

摘要

Adsorption of chlorobenzene and benzene on #gamma#-Al_2O_3 was investigated in the 413-572 K temperature region at an adsorbate partial pressure ranging from 2 to 1000 Pa. The adsorption isotherms were measured and the isosteric heats and the entropy characteristics of adsorption were determined. The experimentally found and theoretically calculated entropy changes upon adsorption were compared. The mobility of the molecules of both adsorbates in the adsorption layer was limited with respect to that predicted by the ideal two-dimensional gas model. The mechanism of adsorption of benzene chlorobenzene is discussed.