Table 5. Calculation Results of Coal Sample Adsorption Parameters^a.

sample number	Va (cm3·g–1)	Va/Pa (cm3·g–1·MPa–1)	5 s (%)	10 min (%)	40 min (%)	180 min (%)
CZ-200	13.96	33.03	45.16	96.23	98.05	98.76
CZ-60	13.90	31.01	7.23	68.98	88.85	98.53
CZ-Z	4.69	5.99		0.04	11.87	32.33
WY-200	12.29	19.15	53.22	94.40	97.59	98.63
WY-60	10.38	16.33	7.20	47.43	68.84	90.17
WY-Z	7.41	9.46		10.39	22.86	44.69
YJL-200	6.88	9.70	49.51	89.94	93.20	95.87
YJL-60	6.09	8.72	42.41	91.24	96.15	99.14
YJL-Z	7.22	7.73	33.50	99.16	104.95	106.17

^aNote: V_a, adsorption capacity; P_a, adsorption pressure; V_a/P_a, the adsorption capacity under unit pressure.