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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
SUPERCRITICAL FLUID EXTRACTION: BRANCHED PORE MODEL WITH NON-LINEAR EQUILIBRIUM
Submission Author:
Augusto Cezar Cordeiro Jardim , PA
Co-Authors:
Augusto Cezar Cordeiro Jardim, Diego Sousa Lopes, Josiel Ferreira, Raul Carvalho Junior , Diego Estumano, Emanuel Macêdo, João Quaresma
Presenter: Augusto Cezar Cordeiro Jardim
doi://10.26678/ABCM.ENCIT2020.CIT20-0332
Abstract
A mathematical model was proposed in the present work to describe the supercritical fluid extraction. He started from the material differential balances of the fluid and the particle and introduced the idea of branched pores; the method of lines (MOL) was used to solve this model. The system of ordinary differential equations resulting from the application of the numerical method was solved with the aid of a computational code developed in FORTRAN programming language using the DIVPAG routine from the IMSL library. The effects of temperature were evaluated for the extraction of priprioca (Cyperus articulatus) and ucuuba (Virola surinamensis Warb.) oils; the effects of pressure were evaluated to extract black sesame (Sesamum indicum) seed and priprioca oils. The results obtained were compared to those in the literature for the model validation and they had an excellent agreement with experimental data.
Keywords
supercritical fluid extraction, priprioca, ucuuba and black sesame seed oils, method of lines
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