Optimal design of supercritical fluid processes

Abstract Optimal schemes and operating conditions are analyzed for the deterpenation of citrus peel oils with supercritical carbon dioxide. The problem is formulated as a mathematical programming model using the group contribution equation of state (GC-EOS) for rigorous phase equilibria predictions. Both thermodynamic predictions and simulation results are found to be in agreement with experimental studies. Optimization results give insight to improve current experimental values of product recovery and purity.

[1]  Jürgen Schmelzer,et al.  Extension of the Group‐Contribution Equation of State Parameter Matrix for the Prediction of Phase Equilibria Containing Argon, Ammonia, Propene and Other Alkenes , 1993 .

[2]  T. R. Bott,et al.  Extraction of natural products using near-critical solvents , 1993 .

[3]  F. Temelli,et al.  Thermodynamic analysis of supercritical carbon dioxide extraction of terpenes from cold-pressed orange oil , 1990 .

[4]  A. Fredenslund,et al.  Application of a Local Composition Equation of State to Supercritical Fluid Phase Equilibrium Problems , 1984 .

[5]  Willard Miller,et al.  The IMA volumes in mathematics and its applications , 1986 .

[6]  M. Poletto,et al.  Fractionation of a Peel Oil Key Mixture by Supercritical CO2 in a Continuous Tower , 1997 .

[7]  Gary R. List,et al.  Supercritical fluid technology in oil and lipid chemistry , 1996 .

[8]  Lorenz T. Biegler,et al.  Improved infeasible path optimization for sequential modular simulators—II: the optimization algorithm , 1985 .

[9]  E. A. Brignole,et al.  Modeling and simulation tools for supercritical fluid processes , 2000 .

[10]  Y. Arai,et al.  High-Pressure Vapor−Liquid Equilibria for Carbon Dioxide + Limonene , 1994 .

[11]  W. Eisenbach.  Supercritical fluid extraction: a film demonstration , 1984 .

[12]  Ignacio E. Grossmann,et al.  Mixed-Integer Nonlinear Programming: A Survey of Algorithms and Applications , 1997 .

[13]  R. Noyori.  Supercritical Fluids: Introduction. , 1999, Chemical reviews.

[14]  M. Goto,et al.  Supercritical fluid extraction on semibatch mode for the removal of terpene in citrus oil , 1996 .

[15]  S. Rizvi.  Supercritical Fluid Processing of Food and Biomaterials , 1995 .

[16]  G. Maurer,et al.  High-pressure vapour-liquid equilibria in binary mixtures of carbon dioxide and benzene compounds: experimental data for mixtures with ethylbenzene, isopropylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, ethenylbenzene and isopropenylbenzene, and their correlation with the generalized Ben , 1994 .

[17]  Steen Skjold-Joergensen.  Group contribution equation of state (GC-EOS): a predictive method for phase equilibrium computations over wide ranges of temperature and pressures up to 30 MPa , 1988 .

[18]  Esteban A. Brignole,et al.  Near-critical separation of aqueous azeotropic mixtures: process synthesis and optimization , 1998 .