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

Table 2

Measurements of the amounts of methane adsorbed on the coal samples as determined by the volumetric method.

Sample	Parameter	Sequence
		1	2	3	4	5	6
ML	(MPa)	0.618	1.095	2.245	3.814	6.017	7.518
	(m^3/t)	3.378	5.807	9.279	11.971	13.900	14.197
ZCD	(MPa)	0.697	1.205	2.337	3.822	5.983	7.581
	(m^3/t)	3.527	5.593	8.341	11.005	12.959	15.088
TL	(MPa)	0.695	1.251	2.405	3.809	6.082	1.793
	(m^3/t)	5.464	7.892	11.043	13.149	15.416	17.546
XQ	(MPa)	0.625	1.141	2.249	3.682	5.980	7.642
	(m^3/t)	3.574	6.278	9.531	12.321	14.424	15.546
XM	(MPa)	0.563	1.060	2.172	3.764	5.902	7.846
	(m^3/t)	3.918	6.410	10.919	14.198	16.211	18.653
DEP	(MPa)	0.672	1.172	2.241	3.927	6.016	7.643
	(m^3/t)	5.426	8.306	11.763	14.781	17.039	19.573
DQ	(MPa)	0.699	1.172	2.301	3.994	6.039	7.669
	(m^3/t)	6.543	11.544	16.104	19.938	22.739	24.585