Coal Temperature Variation Mechanism during Gas Desorption Process

Table 1

Theoretical and measured values of the two types of coal samples.

Sample name	Equilibrium pressure p (Pa)	(m^3/kg)	Desorption rate η	(°C·g^− 1)	(°C·g^− 1)	(°C·g^− 1)	(°C·g^− 1)
Malan 8#10–20	6.00E + 05	1.97E − 03	5.20E − 01	5.95E − 04	8.10E − 05	6.75E − 04	1.25E − 03
	1.21E + 06	2.83E − 03	6.20E − 01	2.25E − 03	2.02E − 04	2.45E − 03	2.31E − 03
	1.90E + 06	3.94E − 03	6.70E − 01	5.68E − 03	3.70E − 04	6.05E − 03	2.71E − 03
	2.10E + 06	4.60E − 03	7.40E − 01	8.91E − 03	4.66E − 04	9.37E − 03	3.21E − 03
Malan 8# 20– 40	5.39E + 05	3.38E − 03	6.20E − 01	1.19E − 03	1.25E − 04	1.32E − 03	6.57E − 04
	1.12E + 06	4.68E − 03	9.20E − 01	9.11E − 03	2.49E − 04	9.36E − 03	1.52E − 03
	1.65E + 06	5.56E − 03	9.30E − 01	1.69E − 02	4.26E − 04	1.73E − 02	1.90E − 03
	2.24E + 06	8.70E − 03	7.70E − 01	1.99E − 02	9.16E − 04	2.08E − 02	2.42E − 03
Malan 8# 40–60	4.34E + 05	4.76E − 03	6.00E − 01	1.30E − 03	1.34E − 04	1.43E − 03	1.34E − 03
	7.92E + 05	5.54E − 03	7.00E − 01	3.62E − 03	2.93E − 04	3.91E − 03	2.36E − 03
	1.73E + 06	6.35E − 03	7.40E − 01	1.01E − 02	5.80E − 04	1.07E − 02	3.40E − 03
	2.16E + 06	1.34E − 02	8.00E − 01	3.18E − 02	1.38E − 03	3.32E − 02	4.16E − 03
Zhenxing 10– 20	3.30E + 05	9.10E − 03	4.00E − 01	1.05E − 03	1.80E − 04	1.23E − 03	2.53E − 03
	8.46E + 05	1.34E − 02	6.60E − 01	8.44E − 03	7.54E − 04	9.20E − 03	6.66E − 03
	1.32E + 06	1.48E − 02	8.10E − 01	2.22E − 02	1.12E − 03	2.33E − 02	8.83E − 03
Zhenxing 20–40	3.42E + 05	8.19E − 03	3.80E − 01	9.20E − 04	1.68E − 04	1.09E − 03	3.19E − 03
	9.00E + 05	1.14E − 02	5.80E − 01	6.09E − 03	6.61E − 04	6.75E − 03	7.07E − 03
	1.01E + 06	1.29E − 02	7.90E − 01	1.42E − 02	7.94E − 04	1.50E − 02	7.40E − 03
	1.80E + 06	1.39E − 02	9.10E − 01	4.06E − 02	1.20E − 03	4.18E − 02	9.92E − 03
Zhenxing 40–60	3.40E + 05	7.33E − 03	5.50E − 01	1.38E − 03	1.45E − 04	1.52E − 03	4.44E − 03
	1.10E + 06	1.39E − 02	7.87E − 01	1.62E − 02	9.25E − 04	1.71E − 02	1.12E − 02
	1.43E + 06	1.72E − 02	8.40E − 01	3.12E − 02	1.35E − 03	3.26E − 02	1.31E − 02
	1.70E + 06	1.83E − 02	9.20E − 01	5.41E − 02	1.47E − 03	5.56E − 02	1.50E − 02
Zhenxing 60–80	2.37E + 05	8.79E − 03	5.40E − 01	1.11E − 03	5.70E − 05	1.16E − 03	2.49E − 03
	6.71E + 05	1.26E − 02	8.00E − 01	9.34E − 03	4.88E − 04	9.83E − 03	7.99E − 03
	1.25E + 06	1.61E − 02	9.00E − 01	3.22E − 02	1.02E − 03	3.32E − 02	1.21E − 02
	1.87E + 06	1.77E − 02	9.10E − 01	5.47E − 02	1.56E − 03	5.62E − 02	1.46E − 02