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Type: Artigo
Title: A step-by-step finite element method for solving the external mass transfer control model of the supercritical fluid extraction process: a case study of extraction from fennel
Author: Hatami, T.
Johner, J.C.F.
Kurdian, A.R.
Meireles, M.A.A.
Abstract: The effect of grinding time (GT) from 15 s to 20 min on the dynamic yield of supercritical fluid extraction (SFE(from fennel was investigated. The extractor was subjected to a pressure of 200 bar, a temperature of 313 K, and a supercritical CO2 flow rate of 2.0 × 10−4 kg/s over 80 min. It was found that the overall SFE yield was increased from 6.4 g/100 g fennel when GT = 15 s to 9.8 g/100 g fennel when GT =6 min, while it changed by only 1.5 g/100 g fennel after increasing GT from 6 min to 20 min. The process was then modeled based on the mass conservation law, and the model was solved using Galerkin’s method on finite element method (FEM). It was demonstrated that considering the whole bed as one single element can acceptably solve the PDEs and reduces the computation cost significantly.
Subject: Extração com fluído supercrítico
Método dos elementos finitos
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.supflu.2020.104797
Date Issue: 2020
Appears in Collections:FEA - Artigos e Outros Documentos

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