Sorption of methane and carbon dioxide mixtures in Polish hard coals considered in terms of adsorption-absorption model

The measurements of gas mixture sorption of CO2 + CH4 (50%:50%) on hard coals were carried out using an original measurement method. The accuracy of the experimental data was controlled by using a gas chromatograph. Experimental sorption isotherms of individual gases were used for the simulation of sorption of their mixtures. A good agreement was obtained between the simulated and experimental data.