Análise da sensibilidade e do comportamento dinâmico de uma coluna de destilação azeotrópica não convencional.

Abstract

The distillation is one of the oldest and important processes of separation used in the industries chemical and petrochemical. On the other hand, it is a process whose thermodynamic efficiency is very low, answering for the percentile greater of the global consumption of energy of a plant. In this direction, the distillation is aimed at of the processes as for energy consumption, was of this form that the present work appeared: the search for the reduction of the consumption of energy in a distillation train, which involves a azeotropic distillation. The behavior of the column of distillation in study in this work presents characteristics of a column of azeotropic distillation; however the agent who cause the azeotropic behavior already is present in the feeding. One is about a distillation column whose feeding is of high pureness and distant composition of the azeotropic point. The work if concentrated in evaluating the sensitivity of the process in the stationary state and the dynamic behavior of the column ahead of operational modifications.