Research Article
Kinetics of Transesterification of Croton megalocarpus Oil Using Alkaline Earth Catalysts with Conventional and Microwave Heating
Table 4
Reaction orders, rate constants, activation energy, and preexponential factor.
| | SN | Catalyst | Heating mode | Order w. r. t triglyceride | Order w. r. t methanol | Overall order | Rate constant k at 70°C | Units of k | E (kJ/mol) | A |
| | 1 | NaOH | WB | 2 | 0 | 2 | 4.75E − 01 | cm ∧ 3 mol ∧ −1 min ∧ −1 | 71.3 | 3.73 E + 10 | | MW | 1 | 0 | 1 | 2.45E + 00 | min ∧ −1 | 51.0 | 2.68 E + 06 |
| | 2 | BaO | WB | 2 | 1 | 3 | 1.27E − 02 | cm ∧ 6 mol ∧ −2 min ∧ −1 | 35.4 | 3.07 E + 03 | | MW | 2 | 1 | 3 | 5.69E − 01 | cm ∧ 6 mol ∧ −2 min ∧ −1 | 36.8 | 2.38 E + 05 |
| | 3 | SrO | WB | 2 | 1 | 3 | 6.19E − 03 | cm ∧ 6 mol ∧ −2 min ∧ −1 | 26.6 | 7.37 E + 01 | | MW | 2 | 1 | 3 | 4.88E − 01 | cm ∧ 6 mol ∧ −2 min ∧ −1 | 46.2 | 5.67 E + 06 |
| | 4 | Nano CaO | WB | 2 | 1 | 3 | 5.65E − 03 | cm ∧ 6 mol ∧ −2 min ∧ −1 | 33.7 | 8.80 E + 02 | | MW | 2 | 1 | 3 | 2.68E − 01 | cm ∧ 6 mol ∧ −2 min ∧ −1 | 36.6 | 1.79 E + 03 |
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