Influence of Organic-Inorganic Composition on the Adsorption of Niutitang Formation Shale in Huijunba Syncline

Table 4

Langmuir constant, maximal adsorption capacity and thermodynamic parameters.

T/°C	Sample 1		Sample 2		Sample 3
	Original rock		Original rock		Original rock
	35	1.543	0.224	1.895	0.445	1.372	0.41
60	1.529	0.158	1.845	0.282	1.362	0.262
85	1.518	0.118	1.819	0.196	1.361	0.184
	q	ΔS^0	q	ΔS^0	q	ΔS^0
	12.05	-70.64	15.10	-74.89	14.59	-74.01
	Kerogen		Kerogen		Kerogen
35	12.264	0.214	5.504	0.434	15.257	0.349
60	12.154	0.151	5.321	0.275	15.188	0.211
85	12.104	0.111	5.243	0.186	15.114	0.142
	q	ΔS^0	q	ΔS^0	q	ΔS^0
	16.09	-81.39	15.09	-75.16	14.98	-77.03
	Mineral		Mineral		Mineral
35	1.106	0.161	3.604	0.14	1.067	0.236
60	1.124	0.122	3.361	0.117	1.013	0.194
85	1.118	0.097	3.197	0.095	0.995	0.161
	8.80	-60.65	11.40	-72.22	7.06	-54.11