Mathematical modelling of soybean oil solubility in supercritical carbon dioxide

Abstract

The solubility of soybean oil in supercritical carbon dioxide has been determined in the pressure range of 100-300 bar and in the temperature range of 313-323 K. The obtained values (from 0.0005 to 0.02055 g L )1 ) have been correlated using four different empirical equations proposed correspondingly by Chrastil, del Valle and Aquilera, Adachi and Lu and Sparks et al. Since the Sparks et al. equation provided the lowest average absolute relative deviation (AARD) (10.25%) than other models in the examined experimental range, a modified equation of Sparks et al. model was developed for predicting the solubility of soybean oil in supercritical carbon dioxide as a function of temperature and density. An improved equation showed the lowest deviation (2.15%) between experimental data than the other empirical equations considered in this study. The proposed equation was also applied for correlating the solubility of linoleic acid (AARD was 2.40%).

Solubility correlation of gall (Quercus infectoria) extract in supercritical CO2 using semi‐empirical equations

“…To compare all of the discussed semi‐empirical equations, Bartle model provided accurate estimation with the highest regression correlation, 96.4%, and lowest error, 1.52%, and can be employed to stimulate the solute solubility at a temperature between 50 and 70 °C and a pressure of 20 to 30 MPa. Most of the constants obtained from this study are comparable with other research carried out in this area . In short, it is proved that the results of this work agree within the ranges of seeds and polar compound extraction.…”

Carbon dioxide deliming in leather production: a literature review

“…The first technological application of SCCD is caffeine extraction from coffee beans and raisin from hops (Zosel, 1978). To date, SCCD is widely used in food (Teberikler et al, 2001;Jokic et al, 2011;Yu et al, 2012), aroma (Hamburger et al, 2004;Kaiser et al, 2004) and polymer synthesis, etc. Skins degreasing was achieved with SCCD as a cleaner solvent (Marsal et al, 2000;Vaquero et al, 2006).…”

HPLC Retention Behavior of Triacylglycerols Extracted from Soybean Oil by Supercritical CO2

“…8,9,21 The main plant parts and properties, according to manufacturer specifications, were: the diaphragm type compressor (with pressure range up to 1000 bar), extractor with internal volume 200 mL (p max = 700 bar), separator (with internal volume 200 mL, p max = 250 bar), and maximum CO 2 mass flow rate of 5.7 kg h −1 . The ground soybean sample of 120 g was placed into an extractor vessel.…”

“…[1][2][3] Supercritical CO 2 extraction as a replacement of organic solvents in soybean oil extraction was considered in the last years by few researchers. [3][4][5][6][7][8][9][10][11][12][13] It has been proven that the oil extracted from soybeans with supercritical CO 2 is much higher quality than the same oil extracted by hexane. Furthermore, the refinement stages are simplified significantly and the solvent distillation stage is completely removed.…”