Abstract
The excess adsorption isotherms of cumene from solutions in n-octane in zeolite NaX have been measured at 303.15, 338.15 and 363.15 K using the conventional static method. The absolute (limiting) adsorption values of the pure components have been measured by the pycnometric method. The absolute adsorption isotherms for the system have been calculated using a non-fitting three parameter equation, based on the modified Dubinin–Radushkevich one. The detailed derivation of the formulas for these calculations is given. The absolute adsorption data are then used for estimation of average adsorbate density and other characteristics of the adsorbed phase.
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