Flow calorimetric insight to competitive sorption of carbon dioxide and methane on coal

Flow calorimetric technique was used to obtain information on the additional adsorption of carbon dioxide on two samples of Czech bituminous coal with pre-adsorbed methane. It was found that most of the adsorption sites for CO2 remain unoccupied when the coal surface is saturated by pre-adsorbed methane. The calorimetric measurements then confirmed the displacement ability of carbon dioxide to methane molecules pre-adsorbed on the coal.