Abstract
Adsorption isotherms of n-heptane on type 5A zeolite were determined in the temperature range 150–400°C and the kinetics of desorption was measured The heat of adsorption, determined chromatographically, was 10.9 kcal/mole in the temperature range below the critical temperature of n-heptane and about 3 kcal/mole above. Experimental data can be well described by the Riekert isotherm with two molecules per cell below the critical temperature and one molecule (Langmuir isotherm) above. Desorption can be described by a first order rate equation with an activation energy of 5.8 kcal/mole.
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