IMPACT OF THE ADSORBATE COMPRESSIBILITY ON THE CALCULATION OF THE MICROPORE VOLUME

The theory of micropore volume filling has been modified in taking int o account the adsorbate compressibility. A new equation has been obtai ned for calculating the micropore volume from the experimental value o f the limit of adsorption. The estimations, with the example of benzen e adsorption on activated carbons, show that because of the adsorbate compressibility, the real micropore volume can exceed the values calcu lated from the conventional Dubinin-Radushkevich theory by about 10% a t room temperature, and this difference increases with an increase in temperature.