Premium
Design of decanter in heterogeneous azeotropic distillation column by minimizing Gibbs free energy
Author(s) -
Rahman Imran,
Ubaidullah S.,
Das Anwesh Kr.
Publication year - 2013
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.1728
Subject(s) - distillation , chemistry , azeotropic distillation , gibbs free energy , thermodynamics , fractionating column , chromatography , physics
In this paper, liquid–liquid equilibrium in decanter of heterogeneous azeotropic distillation is solved by minimizing Gibbs free energy, by using global optimization technique. The azeotropic distillation column is modeled by solving material balance, equilibrium and summation equations, and repulsive particle swarm optimization (RPSO), a stochastic global optimization formalism, is employed to predict stable steady state solution in decanter. To verify the performance of the RPSO algorithm, it is compared with equation solving method for liquid–liquid equilibria by considering two azeotropic systems, namely (1) benzene–ethanol–water and (2) furfural–water. The proposed methodology shows feasibility of the RPSO algorithm in predicting liquid–liquid equilibrium in decanter of heterogeneous azeotropic distillation. © 2013 Curtin University of Technology and John Wiley & Sons, Ltd.