Study of binary adsorption equilibrium of hydrocarbons in activated carbonusing micropore size distribution

Adsorption equilibria of gases on Norit activated carbon were measured usin g a differential adsorber bed rig. The binary gas mixtures between three hy drocarbon gases, i.e., methane, ethane, and propane, were employed in the e xperiment as adsorbates. The experimental equilibrium data were used to exa mine the predictive capability of the multicomponent equilibrium model, whi ch utilizes the concept of micropore size distribution and Lennard-Jones po tential theory to describe the adsorption energetic heterogeneity on activa ted carbon. The effects of the minimum size of pores accessible to adsorbat es and the constraint in the saturation adsorption capacity of the extended Langmuir equation on the prediction performance are investigated within th e model.