Kinetics and Thermodynamics of Oil Extraction from Jatropha curcas L. Using Ethanol as a Solvent
Table 2
Equilibrium () and mass transfer coefficient () parameters obtained for the extraction kinetics of Jatropha oil with moisture contents of 0 and 8.73% at different temperatures with varying particle sizes.
(°C)
= 0.94 mm
= 1.87 mm
= 2.80 mm
(%)
(min−1)
(%)
SE (%)
(%)
(min−1)
(%)
SE (%)
(%)
(min−1)
(%)
SE (%)
Moisture content = 0%
30
44.27
0.0838
98.65
1.51
34.43
0.0550
97.93
1.53
22.99
0.0304
98.52
0.90
40
52.50
0.0989
98.58
1.79
42.35
0.0751
97.01
2.15
27.93
0.0457
99.21
0.80
50
55.78
0.1209
99.37
1.24
47.62
0.0863
97.68
2.09
33.53
0.0541
98.59
1.24
60
60.30
0.1403
99.20
1.49
50.93
0.1130
97.66
2.19
36.32
0.0683
98.32
1.41
Moisture content = 8.73%
30
30.25
0.0527
97.76
1.39
26.03
0.0394
96.14
1.58
24.65
0.0378
98.16
1.05
40
36.98
0.0775
95.06
2.39
32.53
0.0624
96.31
1.87
30.11
0.0415
97.70
1.43
50
42.23
0.0855
96.35
2.33
37.07
0.0924
95.75
2.18
35.48
0.0526
98.26
1.44
60
47.40
0.1023
96.82
2.38
40.50
0.1034
97.02
1.97
37.42
0.0770
98.58
1.32
All estimated parameters were significantly different from zero with according to the analysis of variance at the 95% confidence interval.
