초록 |
Extractive distillation is an alternative for processes where normal distillation is difficult, such as separation of close-boiling mixtures, but solvent selection for distillation is laborious, and its selection pool is narrow. A new selection process using molecular simulation is proposed, and the performance of the selected solvent, 1,2,4-trichlorobenzene, for the separation of 1,2,4-trimethylbenzene from C9 mixture is reviewed in this study. The proposed process required less investment and leads to lower operating expenses than the conventional two-column process. The computed vapor-liquid equilibrium determined from the molecular simulation was close to the HYSYS estimation in two ternary systems. |