سال انتشار: ۱۳۹۰

محل انتشار: سومین کنفرانس تخصصی ترمودینامیک

تعداد صفحات: ۱۲

نویسنده(ها):

Zahra Nickmand – Corresponding Author Address: (Department of Chemical Engineering, University of Isfahan, Isfahan, Iran)
Seyed Foad Aghamiri – Corresponding Author Address: (Department of Chemical Engineering, University of Isfahan, Isfahan, Iran)

چکیده:

In this study the solubility of cholesterol in supercritical solvents are modeled by using SRK, PR, and SAFT equations of state. Two pure solvents (carbon dioxide and ethane) and four supercritical solvent/co-solvent systems are considered. Pure molecular parameters of SAFT equation of state are obtained by fitting vapor pressure and liquid density data. Also molecular parameters of cholesterol are obtained by fitting the solubility data of binary systems in one temperature, and then they used for other temperatures or systems. Also, the capability of SAFT is demonstrated by prediction the solubility of cholesterol in different solvent/cosolvent systems. Results show the ability of SAFT for predicting the solubility of cholesterol in supercritical solvents and solvents/cosolvent systems from moderate to high pressures.