Resumo

PARODI, C. A.  e  CAMPANELLA, E. A.. Effect of vapor-liquid equilibrium data on the design of separation sequences by distillation. Lat. Am. appl. res. [online]. 2009, vol.39, n.1, pp.33-40. ISSN 0327-0793.

An evaluation of the effect of vapor-liquid equilibrium experimental data on the design of separation sequences by distillation was done using computer simulation. Separation of a mixture of acetone-chloroform-benzene was chosen as an example problem. Two sequences were compared. To quantify the thermodynamic data uncertainties for each sequence two sets of binary vapor-liquid equilibrium data were chosen. These two sets of data were used to generate simulation cases as in classical two-level factorial design of experiments. A third set of binary vapor-liquid experimental data allows comparing phase liquid models. For the two-column sequence, analysis done to each column alone or to the whole sequence gave the same results. In the three-column sequence, results were different and simulation of the whole sequence gave a complete different account that simulation of each column alone.

Palavras-chave : Azeotropic Distillation; Sensitivity Analysis; Phase Equilibrium; Azeotrope.

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