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Calculation of the Solubity of Naphtalene in Supercritical CO2 using the Peng Robinson Equation of State
Author

Housam Binous
Organization: KFUPM
Department: Chemical Engineering
URL: http://sites.google.com/site/homepageofdrhousambinous/
Revision date

2006-03-27
Description

The notebook shows how one can calculate the solubility of naphthalene in supercritical CO2. Computed values of solubilities are compared to experimentally determined ones. Fugacity coefficients are obtained using the Peng Robinson equation of state. Supercritical extraction using CO2 has numerous applications such as decaffeination of coffee, elimination of bitter taste in beer as well as extraction of aromatic compounds from spices and flowers. Solubilities in CO2 in supercritical and liquid phases are comparable (because of their comparable densities) but transport properties (such as diffusion coefficients and viscosities) are far more interesting for the supercritical fluid as far as extraction is concerned. CO2 is usually preferred because it has low critical pressure and temperature.
Subjects

*Applied Mathematics > Optimization
*Engineering > Chemical Engineering
*Science > Chemistry
Keywords

FindMinimum, Peng Robinson equation of state, naphthalene, supercritical CO2, solubility, fugacity coefficient, Poynting factor, enhancement factor
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Naphtalene-in-supercritical-CO2.nb (83.3 KB) - Mathematica Notebook [for Mathematica 5.2]