Enhancement of Coal Permeability Using Aqueous NaCl with Microwave Irradiation

Table 6

Change in moisture content in coal rock samples after microwave irradiation (%).

NaCl concentration, (g/L); Moisture content, (%)							Average reduction rate
	Moisture content after microwave irradiation	Reduction rate of moisture content	Moisture content after microwave irradiation	Reduction rate of moisture content	Moisture content after microwave irradiation	Reduction rate of moisture content
	1.96	1.79	3.85	3.74	5.49	8.56	4.69
	1.95	2.38	3.79	5.13	5.37	10.46	5.99
	1.95	2.64	3.79	5.26	4.98	16.97	8.29
	1.94	3.05	3.76	5.95	3.93	34.43	14.48
	1.93	3.37	3.67	8.37	3.59	40.18	17.31
Average value		2.64		5.69		22.12