Table 9.
Stream results for 1‐butanol recovery using DES as a solvent
| Stream name* | Feed | DES‐solvent | Extract | Raffinate | D | B | Make‐up |
|---|---|---|---|---|---|---|---|
| Component mass flow [Kg h−1] | |||||||
| DES | 0.000 | 5999.95 | 5999.95 | 0.0038 | 0.000 | 5999.95 | 0.0038 |
| 1‐Butanol | 5000.00 | 1892.23 | 6443.63 | 448.599 | 4551.42 | 1892.21 | 0.00 |
| Water | 20 000.00 | 0.00 | 790.615 | 19 209.4 | 790.615 | 0.00 | 0.00 |
| Component mass fraction | |||||||
| DES | 0.000 | 0.7602 | 0.4533 | 0.000 | 0.000 | 0.7602 | 1.000 |
| 1‐Butanol | 0.200 | 0.2397 | 0.4868 | 0.0228 | 0.852 | 0.2397 | 0.000 |
| Water | 0.800 | 0.000 | 0.060 | 0.977 | 0.148 | 0.000 | 0.000 |
| Mass flow (kg/h) | 25 000.00 | 7892.18 | 13 234.2 | 19 658 | 5342.04 | 7892.15 | 0.0038 |
| Volume flow [lpm] | 435.242 | 161.845 | 276.622 | 331.619 | 115.093 | 181.195 | 0.00 |
| T [°C] | 25.00 | 25.00 | 27.38 | 26.64 | 94.02 | 139.44 | 25.00 |
| P [bar] | 1.01 | 1.01 | 1.01 | 1.01 | 1.01 | 1.31 | 1.01 |
| Molar enthalpy [cal mol−1] | −68 782.21 | −58 136.69 | −68 037.9 | −68 281.74 | −71 310.07 | −50 167.3 | −43 900.69 |
| Molar entropy [cal mol−1 K−1] | −44.12767 | −180.0307 | −124.5664 | −39.35165 | −84.66176 | −158.0951 | −214.1626 |
Note: Optimal results: Extractor column: P = 1 atm, T = 25 °C, N Extractor = 7
Distillation column: N Distillation = 60, N feed = 23; distillate rate: 5342.04 kg h−1; reflux ratio: 4.84; D Distillation: 2.38 m; reboiler heat duty = 8444.872 KW.