Research Article
Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
Table 3
Equilibrium constant and relative volatilities for the mixture: benzene, toluene, ethylbenzene, and o-xylene at atmospheric pressure.
| | Binary data
| Peng R. 83–125°C | NRTL 83–125°C | Raoult | Raoult | | | | | | | | | | Top 80°C
| Bottom 110°C | | Ki | i | Ki | i | ij | Ki | i | ij | Ki | i | ij | Ki | i | ij |
| Benzene | 1.51 | | 2.07 | | 5.91 | 2.08 | | 6.30 | 1.00 | | 8.00 | 2.28 | | 6.33 | | | 1.34 | | 2.35 | | | 2.19 | | | 2.63 | | | 2.38 | | Toluene | 1.13 | | 0.88 | | 2.51 | 0.90 | | 2.73 | 0.38 | | 3.04 | 0.96 | | 2.66 | | | 1.19 | | 1.95 | | | 1.99 | | | 2.30 | | | 2.09 | | ETB | 0.95 | | 0.45 | | 1.29 | 0.41 | | 1.24 | 0.17 | | 1.32 | 0.46 | | 1.28 | | | 1.04 | | 1.29 | | | 1.26 | | | 1.32 | | | 1.28 | | O-Xileno | 0.91 | | 0.35 | | 1.00 | 0.33 | | 1.00 | 0.13 | | 1.00 | 0.36 | | 1.00 |
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