Abstract
Abstract The solubility of red palm oil (RPO) in supercritical carbon dioxide (scCO 2 ) was determined using a dynamic method at 8.5–25 MPa and, 313.15–333.15 K and at a fixed scCO 2 flow rate of 2.9 g·min − 1 using a full factorial design. The solubility was determined under low pressures and temperatures as a preliminary study for RPO particle formation using scCO 2 . The solubility of RPO was 0.5–11.3 mg·(g CO 2 ) − 1 and was significantly affected by the pressure and temperature. RPO solubility increased with pressure and decreased with temperature. The Adachi–Lu model showed the best-fit for RPO solubility data with an average relative deviation of 14% with a high coefficient of determination, R 2 of 0.9667, whereas the Peng–Robinson equation of state thermodynamic model recorded deviations of 17%–30%.
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