Methodology for predicting oily mixture properties in the mathematical modeling of molecular distillation

M. F. Gayol; M. C. Pramparo; S. M. Miró Erdmann

doi:10.3989/gya.1051162

Authors

M. F. Gayol Facultad de Ingeniería, Universidad Nacional de Rio Cuarto https://orcid.org/0000-0001-9564-1983
M. C. Pramparo Facultad de Ingeniería, Universidad Nacional de Rio Cuarto https://orcid.org/0000-0002-7203-6673
S. M. Miró Erdmann Facultad de Ingeniería y Ciencias Agropecuarias, Universidad Nacional de San Luis https://orcid.org/0000-0002-9396-8111

DOI:

https://doi.org/10.3989/gya.1051162

Keywords:

Modeling, Molecular distillation, Oily mixtures, Properties

Abstract

A methodology for predicting the thermodynamic and transport properties of a multi-component oily mixture, in which the different mixture components are grouped into a small number of pseudo components is shown. This prediction of properties is used in the mathematical modeling of molecular distillation, which consists of a system of differential equations in partial derivatives, according to the principles of the Transport Phenomena and is solved by an implicit finite difference method using a computer code. The mathematical model was validated with experimental data, specifically the molecular distillation of a deodorizer distillate (DD) of sunflower oil. The results obtained were satisfactory, with errors less than 10% with respect to the experimental data in a temperature range in which it is possible to apply the proposed method.

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