Effect of -O- on Water Molecule Adsorption and Adsorption Mechanism of Lignite and Coke

Table 3

Different size pore ratios of lignite at different heat treatment temperatures (¹H-NMR).

Temperature (°C)	Pore ratios (%)
	<10 nm	10–100 nm	100–1000 nm	>1000 nm
25	2.51	46.74	47.27	3.48
50	0.00	54.96	41.38	3.66
75	2.08	40.75	43.96	13.21
105	0.00	22.84	47.41	29.75
200	1.52	31.00	11.43	56.05
300	9.17	24.79	32.94	33.10
500	6.55	29.81	25.03	38.61
700	3.33	16.06	31.53	49.09
950	0.00	8.33	40.36	51.31