Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods

Table 6

Calculation results of coal HCG.

Method	(°C/min)	E (kJ/mol)	A (1/S)	R^2
The general integral	5	276.67	3.98 × 10^17	0.9995
	10	252.23	5.13 × 10^15	0.9997
	15	211.63	8.71 × 10^12	0.9991
	20	210.43	6.76 × 10^12	0.9998
MacCallum–Tanner	5	282.17	1.41 × 10^18	0.9996
	10	257.84	1.70 × 10^16	0.9997
	15	216.94	2.51 × 10^13	0.9992
	20	215.86	1.95 × 10^13	0.9998
Average		240.47	1.05 × 10^15	0.9995
Kissinger	—	223.67	1.53 × 10^13	0.9976
FWO	—	264.33	—	0.9900