Application of a Modified Low-Field NMR Method on Methane Adsorption of Medium-Rank Coals

Table 1

Vitrinite reflectance () and maceral and mineral of the samples.

Sample ID	Vitrinite reflectance ()	Maceral and mineral (vol.%)
		Vitrinite	Inertinite	Liptinite	Mineral
ML-2	1.08	76.8	21.2	—	2.0
ZCD-2	1.21	66.9	32.3	—	0.8
TL-2	1.24	74.9	24.7		0.4
XQ-2	1.32	64.0	35.2		0.8
XM-2	1.61	61.2	35.6	—	3.2
DEP-3	1.71	75.2	22.8	—	2.0
DQ-2	1.80	68.7	31.0	—	0.3