Table 9 Constraints parameters of biodiesel synthesis.
From: Valorization of marble sludge waste in biodiesel production using a central composite design
Parameters | Goal | Lower limit | Upper limit | Lower weight | Upper weight | Importance |
|---|---|---|---|---|---|---|
A: Time | Minimize | 1 | 4 | 1 | 1 | 5 |
B: Temperature | Minimize | 50 | 70 | 1 | 1 | 2 |
C: Methanol/oil molar ratio | In range | 5 | 20 | 1 | 1 | 3 |
D: Catalyst | In range | 1 | 5 | 1 | 1 | 3 |
Biodiesel yield | Maximize | 70 | 97.9 | 1 | 1 | 5 |
