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Henrique Gasparetto,Ana Luiza Barrachini Nunes,Fernanda de Castilhos,Nina Paula Gonçalves Salau 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-
Soybean oil extraction using two green solvents was investigated from solvent selection to thermodynamics:ethyl acetate and 1-butanol. The screening of the solvents was performed using the Hansenparameters and Infinite Dilution Activity Coefficient (IDAC) obtained through the COnductor-likeScreening MOdels – Segment Activity Coefficient (COSMO-SAC) theory. The solvent selection was performedon ethyl acetate and 1-butanol in comparison with ethanol, a well-studied green solvent, andhexane, a non-renewable and industrially used solvent. The effects of temperature and solvent/solid ratioon the yield of soybean oil extraction were investigated through response surface methodology (RSM). The RSM obtained satisfactory statistical results, with R2adj of 0.9958 for ethyl acetate and 0.9729 for 1-butanol. The kinetic of the extractions were evaluated using two different models: mass transfer kineticand So and Macdonald. The last one obtained the best correlation to the data (R2 > 0.9964). The thermodynamicassessment showed endothermic, and spontaneous processes for both solvents. 1-Butanol, ethylacetate, and hexane have a better performance on the yield of soybean oil extraction than using ethanol;however, ethyl acetate is the best candidate to replace the industrial use of hexane due to its highest rateof soybean oil extraction at the process beginning.
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