Adsorption of methane on activated carbon by volumetric method

Abstract

The adsorption characteristics of methane on granular activated carbon were measured over the temperature range of (293 to 323) K and at pressures up to 900 psi using a volumetric measurement system. The surface of activated carbon has been modified with copper oxides and sliver in order to improve the adsorption capacity of methane. The results indicate that the adsorption capacity can be marginally improved by doping small amount of metal oxides The adsorption data were fitted to different isotherm models and the result shows that DA are able to predict data correctly at all temperature . The isosteric heat of adsorption, which is concentration- and temperature-dependent, is extracted from the data.