Calorimetric and Gravimetric Measurements of Hydrocarbon Adsorption on a Granulated Active Carbon

Adsorption isotherms of n-butane on a granulated activated carbon were measured by two different but complementary experimental methods: calorimetry and gravimetry. Adsorption heats were determined in different ways. For the system studied, the experimental results prove that the adsorbent offers a homogeneous site distribution. Besides, there can be differences between the adsorption heat values which might come from the way they are obtained (by calculation or direct measurements). This revised version was published online in August 2006 with corrections to the Cover Date.