Kinetics and Thermodynamics of Oil Extraction from Jatropha curcas L. Using Ethanol as a Solvent

Table 5

Equilibrium constant () and variation of Gibbs free energy () for the oil extraction process from Jatropha seeds with moisture content of 0% for different temperatures and particle sizes using ethanol as a solvent.

(°C)	= 0.94 mm		= 1.87 mm		= 2.80 mm
		(kJ mol^−1)		(kJ mol^−1)		(kJ mol^−1)
30	0.7944	0.5797	0.5250	1.6230	0.2985	3.0455
40	1.1052	−0.2602	0.7345	0.8031	0.3876	2.4662
50	1.2613	−0.6235	0.9091	0.2559	0.5044	1.8379
60	1.5191	−1.1575	1.0381	−0.1035	0.5704	1.5544