Low-pressure equilibrium binary argon?methane gas mixture adsorption on exfoliated graphite: Experiments and simulations

ALBESA, ALBERTO G;; VICENTE, JOSÉ L.; RUSSEL, BRICE; RAFTI, MATÍAS

CHEMICAL PHYSICS LETTERS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2016 vol. 650 p. 130 - 137

0009-2614

Adsorption equilibrium measurements of pure methane, pure argon, and binary mixtures over exfoliated graphite were carried for different initial compositions, temperatures, and total pressures in the range of 0.1?1.5 Torr using the volumetric static method. Diagrams for gas and adsorbed phase compositions were constructed for the conditions explored, and isosteric heats of adsorption were calculated. Experimental results were compared with predictions obtained with Monte Carlo simulations and using the Ideal Adsorbed Solution Theory (IAST).