Resumo

LAUZURIQUE GUERRA, Yeney; ZUMALACARREGUI DE CARDENAS, Lourdes; PEREZ ONES, Osney  e  CURBELO RODRIGUEZ, Aloimy. Simulación de la destilación extractiva para la obtención de etanol anhidro empleando glicoles. Cienc. docencia tecnol. [online]. 2016, n.53, pp.362-383. ISSN 1851-1716.

Extractive distillation was evaluated, using propylene glycol, ethylene glycol, glycerol and a mixture of ethylene glycol and glycerol, for being the most used solvents worldwide. Each technique was simulated with hysys v3.2 process simulator. The same ethanol molar flow (216.5 kmol/h) was established for ethanol-water mixtures, in order to compare results. Anhydrous ethanol composition was higher than 97 %. The influence of operating parameters on the efficiency of each simulated technologies was determined by analyzing six alternatives. A further comparison was done in order to select the best alternative from technical- economic point of view. Alternatives are economically advantageous because of their net profits. The greatest benefits are obtained with the extractive distillation using ethylene glycol.

Palavras-chave : Dehydration; Glycols; Anhydrous ethanol; Simulation.

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