Liquid‐Liquid Phase Equilibrium of Glycerolysis Precursors: Experimental and Modeling Study

Journal Publication ResearchOnline@JCU
Mamtani, Kapil;da Silveira, Christian L.;Farid, Mohammed M.;Shahbaz, Kaveh
Kaveh Shahbaz
Abstract

The mutual immiscibility of glycerol and free fatty acids limits glycerolysis, a reaction capable of upgrading waste-derived oils. In the present work, the liquid-liquid phase equilibrium data for the glycerol-water-oleic acid and glycerol-monoolein-oleic acid ternary systems were determined experimentally and compared with predictions of the UNIFAC-LLE and COSMO-SAC models. Monoolein was found to affect the glycerol solubility in oleic acid strongly. None of the models investigated adequately determined phase equilibria for the glycerol-monoolein-oleic acid system. COSMO-SAC predictions showed the best trend for glycerol solubility in the fatty phase. For the glycerol-water-oleic acid system, UNIFAC-LLE predictions were in good agreement with experimental data.

Journal

Chemical Engineering and Technology

Publication Name

Chemical Engineering & Technology

Volume

47

ISBN/ISSN

1521-4125

Edition

N/A

Issue

1

Pages Count

9

Location

N/A

Publisher

Wiley

Publisher Url

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Publisher Location

N/A

Publish Date

N/A

Url

N/A

Date

N/A

EISSN

N/A

DOI

10.1002/ceat.202300245