Experimental Investigation of the Thermal Expansion Characteristics of Anthracite Coal Induced by Gas Adsorption

Table 2

Isothermal adsorption of CO₂ and CH₄ to coal samples under different pressures.

	CO2						CH4
Pressure (MPa)	0.44	1.34	2.27	3.23	4.35	5.49	0.81	1.57	2.60	3.90	5.53	7.46
Adsorption capacity (m^3/t)	33.13	47.89	53.09	56.39	58.17	59.38	19.41	25.04	29.30	31.05	32.45	33.23