| 초록 |
Bioethanol is commonly recovered from fermentation broth via distillation, because it is the most economical and reliable process for large-scale industrial operations. Extraction is a highly energy-efficient process applicable to low-composition bio-product separation, and therefore its highly performing, environmentally friendly solvents are necessary for the bioethanol recovery. A deep eutectic solvent, choline chloride and ethylene glycol (1:2), was used as a solvent, and its perfromance was examined by comparing to the previously reported processes. Thermodynamic models of vapor-liquid equilibrium (VLE) and liquid-liquid equilibrium (LLE) systems were derived using molecular simulations and experimental results to develop the bioethanol extraction and refinement processes. The heat duty of the designed process was noticeably reduced compared to that of previous recovery processes. |
