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Abstract Based on a large number of literature research, from the adsorption potential calculation formula, the influence factors of methane on coal particle surface adsorption potential and its process were summarized and analyzed. The study found that the adsorption potential mainly controlled by equilibrium pressure, coal pore structure types, adsorption volume, coal rank and other factors. The smaller equilibrium pressure and pore size is, the greater pore curvature is, the greater adsorption potential is. Adsorption potential increases with the decrease of adsorption volume. The variation trend of the adsorption potential is with the increase of coal rank first increases and then decreases.
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