Adsorptive Desulfurization of Organic Sulfur from Model Fuels by Active Carbon Supported Mn (II): Equilibrium, Kinetics, and Thermodynamics

Table 2

Nonlinear fitting parameters of three adsorption isothermal models (Langmuir, Freundlich, and Temkin) at different adsorption temperatures (313, 323, and 333 K).

	Adsorption temperatures (K)
	313	323	333
Langmuir model
KL (L mmol^−1)	1.027	0.869	0.690
qmax (mmol g^−1)	0.699	0.660	0.647
R^2 (nonlinear)	0.940	0.976	0.944
RMSE (nonlinear)	0.016	0.010	0.015
Freundlich model
Kf	0.424	0.380	0.346
1/n	0.178	0.193	0.212
R^2 (nonlinear)	0.970	0.992	0.971
RMSE (nonlinear)	0.012	0.006	0.011
Temkin model
KT (L g^−1)	56.372	34.864	20.383
B (kJ mol^−1)	25.796	26.490	26.121
R^2 (nonlinear)	0.975	0.995	0.972
RMSE (nonlinear)	0.011	0.004	0.010