Table 3
Results of factorial design for bubble diameter and gas holdup.
| NaCl (g/L) | Polymer (mg/L) | Surfactant (mg/L) | Superficial gas velocity (cm/s) | Bubble diameter (mm) | Holdup (%) |
|---|---|---|---|---|---|
| 60 | 100 | 0 | 0.250 | 4.8 | 1.3 |
| 60 | 100 | 0 | 0.500 | 5.2 | 2.4 |
| 60 | 2000 | 0 | 0.250 | 7.3 | 1.1 |
| 60 | 2000 | 0 | 0.500 | 7.9 | 1.6 |
| 200 | 100 | 0 | 0.250 | 5.3 | 1.0 |
| 200 | 100 | 0 | 0.500 | 5.7 | 2.1 |
| 200 | 2000 | 0 | 0.250 | 6.8 | 1.1 |
| 200 | 2000 | 0 | 0.500 | 7.8 | 1.9 |
| 60 | 100 | 100 | 0.250 | 4.3 | 1.2 |
| 60 | 100 | 100 | 0.500 | 4.4 | 2.5 |
| 60 | 2000 | 100 | 0.250 | 5.7 | 1.8 |
| 60 | 2000 | 100 | 0.500 | 6.4 | 2.9 |
| 200 | 100 | 100 | 0.250 | 4.5 | 1.2 |
| 200 | 100 | 100 | 0.500 | 4.5 | 2.5 |
| 200 | 2000 | 100 | 0.250 | 5.9 | 1.5 |
| 200 | 2000 | 100 | 0.500 | 6.6 | 2.7 |
| 130 | 1050 | 50 | 0.375 | – | 2.2 |