Column | Number of trays | Feed tray number | Reflux ratio | Top pressure (kPa) | Bottom pressure (kPa) |
C1501 | 15 | 6 | 0.3 | 33.3 | 51.3 |
C1503 | 30 | 20 |
| 189.3 | 215.3 |
C1502 | 40 | 30 | 3.1 | 600.4 | 636.7 |