Experimental Study on the Pore Structure of Middle- and Low-Rank Coal and Its Influence on Methane Adsorption

Table 1

Industrial analysis for experimental coal samples.

Coal	(cm^3·t^-1)	(MPa^-1)	(%)	(%)	(%)	(%)
PDS	26.954	1.098	0.63	8.89	13.49	1.83
WZ	20.661	1.110	0.96	12.41	31.92	1.15
XJ	24.155	0.825	1.02	7.33	40.25	0.79