| Parameters | Distillation system | Double-effect system | |
| I | II | ||
| Pressure/MPa | 0.1 | 0.14 | 0.063 |
| Theoretical stage | 64 | - | - |
| Top temperature/˚C | 64.39 | 100.2 | 83.4 |
| Bottom temperature/˚C | 99.65 | 108.7 | 90.1 |
| Condenser duty/kW | 628.58 | 612.95 | 442.61 |
| Reboiler duty/kW | 121.53 | ||
| Total heat exchange area/m2 | 67.50 | 80.16 | 92.78 |
| Annual steam cost (105$/y) | 4.43 | 22.11 | |
| Annual cooling water cost (105$/y) | 3.48 | - | |
| Compressor power consumption/kW | - | 28.51 | |
| Total energy cost /t∙a−1 | 674.84 | ||
| TAC (105$/y) | 33.39 | ||