Modelling the supercritical CO2 extraction kinetics of soybean oil

Abstract

SummaryDifferent empirical models were used to describe the supercritical CO 2 extraction of soybean oil obtained at series of operational parameters namely pressure, temperature, solvent flow rate and characteristic particle size. Process yields obtained by supercritical CO 2 were up to 19.33%. Several kinetic models: Brunner, Kandiah and Spiro, Tan and Liou, Martinez et al. and Esquivel et al. were used to test the experimental yield data. All models were analysed using nonlinear regression method. Also a new model, modified Esquivel et al., was proposed and analysed using nonlinear regression method as well. According to the obtained results for extraction yield of soybean oil, the modified Esquivel et al. model show the best agreement between experimental and model calculated data.

Effect of extraction type on the fatty acids profile and physicochemical properties of biolipids from Astrocaryum vulgare pulp: supercritical CO2 versus n‐hexane extractions

“…In another work, the yield of tucumã oil extraction by using the Bligh and Dyer method was around of 38.5% (Rodrigues et al ., 2010). The tucumã oil yield of both extraction techniques was much higher than the oil yield of soybean extracted by SFE‐CO 2 , which presented a value of approximately 19% (Jokic et al ., 2015). Solvent extractions using hexane, such as by Soxhlet method, can present a greatest extraction yield and rate, because the temperature applied increases the solvent diffusivity through the matrix, promoting an increased solubility of the lipidic substances and consequently higher oil yields (Nde and Foncha, 2020).…”

Comparative Evaluation of Different Extraction Techniques for Separation of Artemisinin from Sweet Wormwood (Artemisia annua L.)

“…Supercritical CO 2 extraction (SCO 2 E) was carried out in a custom-made extraction system that was explained in detail previously [52]. An amount of 100 g of the plant material was placed into the extraction vessel, and separation of the extract was conducted under 15 bar and 25 • C. Extraction was performed at a pressure of 300 bar, a temperature of 40 • C and a CO 2 flow of 1.4 kg/h according to optimal conditions determined by Vidović et al [15].…”