Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent

Nélio Teixeira Machado; Silvio Alex Pereira da Mota; Raquel Ana Capela Leão; Rodrigo O. M. A. Souza; Sergio Duvoisin, Jr.; Luiz Eduardo Pizarro Borges; and Andréia de Andrade Mâncio da Mota

doi:10.20944/preprints202404.0531.v1

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preprints.org > engineering > energy and fuel technology > doi: 10.20944/preprints202404.0531.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent

Nélio Teixeira Machado

^* ,

Silvio Alex Pereira da Mota

Raquel Ana Capela Leão

Rodrigo O. M. A. Souza

Sergio Duvoisin, Jr.

Luiz Eduardo Pizarro Borges

and Andréia de Andrade Mâncio da Mota

Version 1 : Received: 7 April 2024 / Approved: 8 April 2024 / Online: 8 April 2024 (11:17:45 CEST)

How to cite: Machado, N.T.; Mota, S.A.P.D.; Leão, R.A.C.; Souza, R.O.M.A.; Duvoisin, Jr., S.; Borges, L.E.P.; Mota, A.A.D.A.M.D. Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent. Preprints 2024, 2024040531. https://doi.org/10.20944/preprints202404.0531.v1 Machado, N.T.; Mota, S.A.P.D.; Leão, R.A.C.; Souza, R.O.M.A.; Duvoisin, Jr., S.; Borges, L.E.P.; Mota, A.A.D.A.M.D. Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent. Preprints 2024, 2024040531. https://doi.org/10.20944/preprints202404.0531.v1

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MDPI and ACS Style

Machado, N.T.; Mota, S.A.P.D.; Leão, R.A.C.; Souza, R.O.M.A.; Duvoisin, Jr., S.; Borges, L.E.P.; Mota, A.A.D.A.M.D. Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent. Preprints 2024, 2024040531. https://doi.org/10.20944/preprints202404.0531.v1

APA Style

Machado, N.T., Mota, S.A.P.D., Leão, R.A.C., Souza, R.O.M.A., Duvoisin, Jr., S., Borges, L.E.P., & Mota, A.A.D.A.M.D. (2024). Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent. Preprints. https://doi.org/10.20944/preprints202404.0531.v1

Chicago/Turabian Style

Machado, N.T., Luiz Eduardo Pizarro Borges and and Andréia de Andrade Mâncio da Mota. 2024 "Upgrading/Deacidification of Organic Liquid Phase by Liquid-Liquid Extraction Using Methanol/Water as Solvent" Preprints. https://doi.org/10.20944/preprints202404.0531.v1

Abstract

The objective of this work was to investigate the deacidification of bio-oils (BOs) from triglyceride-based biomass through the application of liquid-liquid extraction (LLE) in a simple stage, using methanol and water as a binary solvent and feed/solvent ratio of 1/1. For this, the effects of process parameters such as the water content present in the solvent, the content of carboxylic acids present in the bio-oil, and the extraction temperature on the deacidification process through the efficiency and distribution coefficient were evaluated, as well as the effects of such parameters on the quality of deacidified bio-oils through physical-chemical analyzes and GC-MS analysis. The results show that such process parameters significantly affect the quality of deacidified bio-oils. The ideal condition to have the highest acid removal, i.e., the highest deacidification efficiency (72.65%), is the one in which the deacidification process is performed with aqueous methanol (5% water) at 35 °C and for BOs that have a total acid number (TAN) equal to 24.38 mg KOH/g. Therefore, the process of deacidification by LLE using aqueous methanol is a promising alternative for removing carboxylic acids and other oxygenated compounds, contributing significantly to the upgrading or improving biofuels produced by catalytic thermal cracking.

Keywords

Solvent extraction; Biofuel; Pyrolysis oil; Carboxylic acids; Oxygenated compounds.

Subject

Engineering, Energy and Fuel Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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