Research Article
Effect of Contaminants on the Gas Holdup and Mixing in Internal Airlift Reactors Equipped with Microbubble Generator
Table 2
Range of experimental conditions investigated.
| Superficial gas velocity | 0.0025–0.020 | ms−1 | SDS concentration | 0–50 | ppm | Equilibrium surface tension | 72.0–44.1 | mN/m | Temperature | 25 ± 2 |
°C | Gas holdup in the riser (±4%) | 0.007–0.14 | — | Gas holdup in the downcomer (±4%) | 0–0.11 | — | Liquid circulation velocity (±4%) | 0.57–1.3 | ms−1 | Mixing time (±7%) | 18–40 | s | Pressure drop across sparger | 70–350 | kPa | Mass Flow rate of water through the sparger | 0.06 | kg/s | Gas to liquid mass flow ratio in the sparger | 0.0021–0.017 | — |
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