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Constraints and goals for process variables in RSM-based optimization.
| Variable/response | Goal | Lower limit | Upper limit | Lower weight | Upper weight | Importance |
|---|---|---|---|---|---|---|
| Temperature (X1) | in range | 500 | 700 | 1 | 1 | 3 |
| Time (X2) | in range | 1.5 | 3.5 | 1 | 1 | 3 |
| KOH/C ratio (X3) | in range | 2 | 4 | 1 | 1 | 3 |
| CO2 Uptake (Y) | maximize | 2.22 | 4.21 | 1 | 1 | 3 |
