Fractal Pore and Its Impact on Gas Adsorption Capacity of Outburst Coal: Geological Significance to Coalbed Gas Occurrence and Outburst

Table 3

Calculated results of fractal dimensions based on HP-MIP and LP-N₂GA.

Sample	HP-MIP						LP-N2GA
	nm			nm			nm
	ZC-S5	-1.18	2.82	0.9719	-0.21	3.79	0.6842	-0.42	2.58	0.9995
ZC-S8	-1.11	2.89	0.9818	-0.17	3.83	0.3823	-0.50	2.50	0.9993
ZC-Q9	-1.19	2.81	0.9728	-0.25	3.75	0.8549	-0.38	2.62	0.9992
ZC-S12	-1.19	2.81	0.9671	-0.29	3.71	0.8841	-0.39	2.61	0.9877
TC-1	-1.10	2.90	0.9772	-0.28	3.72	0.9308	-0.33	2.67	0.9968
TC-2	-1.07	2.93	0.9691	-0.32	3.68	0.4517	-0.36	2.64	0.9984
TC-3	-1.15	2.85	0.9830	-0.29	3.71	0.8876	-0.27	2.73	0.9985
TC-4	-1.03	2.97	0.9699	-0.37	3.63	0.9305	-0.30	2.70	0.9803

Notes: and are the fractal dimensions calculated based on HP-MIP data with pore size greater than 50 nm and 3–50 nm, respectively. is the fractal dimension calculated based on LP-N2GA data with pore size 1–50 nm. , , and are the corresponding fitting parameters.