EXPERIMENTAL STUDY OF COALBEDS METHANE REPLACEMENT BY CARBON DIOXIDE

Carbon dioxide is one of the main greenhouse gases.Geological disposal of carbon dioxide in coalbeds is regarded as an economical approach because of the mutual benefit of greenhouse gas sequestration and recovery of coalbed methane by replacement.In the past,most of works were focused on either theoretical analyses and numerical simulations,or experiments of adsorption and desorption of different gases on coal grains in size of millimeters or...