Table 4
Summary of lab-scale and pilot-scale adsorption column design parameters.
| Parameter | Lab test column | Pilot column | Scale-up factor |
|---|---|---|---|
| Adsorber bed height, L (cm) | 23 | 150 | 6.5 |
| Bed diameter, D (cm) | 4.6 | 30 | 6.5 |
| Adsorbent particle diameter, dp (mm) | 1 | 1 | – |
| L/D | 5 | 5 | – |
| L/dp | 230 | 1500 | – |
| D/dp | 46 | 300 | – |
| Equivalent bed mass (kg) | 0.26 | 70 | 270 |
| MDEA flow rate (mL/min) | 4.3 | 185 | 43 |
| Empty bed contact time (min) | 89 | 573 | 6.5 |
| Residence time (min) | 34 | 205 | 6.5 |
| Superficial velocity (cm/min) | 0.26 | 0.26 | 1 |
| Stanton number, St | 3.7 | 24 | – |
| Biot number, Bi | 0.97 | 0.91 | – |