Determinación de las etapas teóricas y plato de alimentación mediante el método de mc cabe-thiele en la destilación binaria.

Abstract

The purpose of this work was applied Excel modeling for a chemical process, binary distillation with ethanol-water components, for the production of ethanol with a purity of 90%, and 10% bottom. A calculation base was used, in the feed stream a molar flow of the mixture 100 kmol/h, in which a molar flow of the distillate 75 kmol/h was obtained by material balance, and in bottoms or residues 25 kmol/h. h. The modeling was carried out using the method proposed by McCabe Thiele, which is used in rectification columns through equilibrium and material balance relationships, to obtain a numerical solution such as the number of theoretical stages and feed plate, using the equilibrium diagram of the mixture (ethanol-water) at 1 atm. The theoretical stages and the feed plate were drawn as the steps between the operating and equilibrium lines; in the case of the theoretical stages up to the waste composition and the feed plate up to the feed line. To define the resolution of the application exercise, data taken from the bibliographical source were used.