Experimental Study on Reasonable Adsorption Time in Determination Coalbed Methane Content

Table 7

Langmuir constants and at reasonable adsorption time.

Coal samples	Reasonable adsorption time/h	/(mL/g)	/(MPa^-1)
WYY	25	41.56	1.51
WYR	28	42.95	1.04
PY	18	35.04	0.94
PR	22	38.64	0.71
QFY	7	25.43	1.38
QFR	8	27.21	1.07