STUDY OF THE HYDROUS ETHANOL PURIFICATION STAGE: SIMULATION AND SENSITIVITY ANALYSIS EXTRACTIVE DISTILLATION USING DWSIM SIMULATOR

• DOI: https://doi.org/10.22533/at.ed.3174232418095

• Palavras-chave: Ethanol; Purification; Distillation, azeotropic mixture, DWSIM.

• Keywords: Ethanol; Purification; Distillation, azeotropic mixture, DWSIM.

• Abstract:

  The ethanol purification stage has a high energy demand. The work therefore aims to simulate the extractive distillation of ethanol-water with ethylene glycol, using the DWSIM v.8.6 simulator. Sensitivity analysis will be used to simulate the extraction column. The results of the analysis revealed that the temperature, solvent flow rate and pressure of the azeotropic mixture are crucial to the process, obtaining ethanol with 98.86% purity, but further studies are needed in order to obtain 99.5% ethanol.