Changes in Pore Structure of Coal Caused by CS₂ Treatment and Its Methane Adsorption Response

Table 4

Langmuir constants of untreated and CS₂-treated coals.

Sample		(cm^3/g)	(MPa)
Haitian coal	Untreated	14.99	5.19
	CS2-treated	21.80	5.52
Tucheng coal	Untreated	22.12	4.26
	CS2-treated	24.05	3.53
Yuni coal	Untreated	25.86	2.77
	CS2-treated	25.23	2.75
Linyuan coal	Untreated	27.46	2.60
	CS2-treated	27.33	2.83
Jinjia coal	Untreated	28.87	3.00
	CS2-treated	27.89	2.82