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Use of ethanol associated with ionic liquids in vegetable oils refining and biodiesel physical properties production and modification

Grant number: 17/21607-1
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): January 01, 2018
Effective date (End): December 31, 2018
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Engineering
Principal Investigator:Antonio José de Almeida Meirelles
Grantee:Marcela Cravo Ferreira
Home Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:14/21252-0 - Equilibrium and production processes of biofuels and bioproducts, AP.TEM


Recently, several studies performed by the research group have evaluated the effectiveness of ethanol in extraction and refining process in the vegetable oil industry. In fact, ethanol combines a good extraction ability, selectivity, easy recovery, and low toxicity. In the last decade, pure ionic liquids (ILs) or mixtures of ILs and other solvents have also been evaluated in the improvement of the extraction yield of biocompounds of interest for food industry. This potential offers several possibilities in the conception of new methods of extraction and optimization. Associated with the production of vegetable oils, ethanol has also been used in the production of biodiesel. In fact, in the context of an integrated biorefinery, the use of ethanol in extraction and refining process as well as in the production of biodiesel can be an economical and sustainable alternative. However, the use of some catalysts may lead to technical disadvantages, such as soap formation and low glycerol recovery. Similarly what occurs in extraction processes, ILs have also shown interesting results in order to mitigate these operational problems and improving the yields. In addition, they can promote the reduction of biodiesel melting temperature, which is interesting to enable the production of biodiesel with high content of saturated compounds. This work, therefore, aims at the evaluation of the integrated use of ethanol and ILs in extraction and refining processes of vegetable oils and for biodiesel production from these sources, by the evaluation of the phase equilibrium behavior of the systems involved in these processes. In addition, this works aims at the evaluation of the effect of ionic liquids on the physical properties: viscosity, density, and melting temperature of the bioproducts generated. These data will provide important information for mitigation the problems associated with these alternative processes, in order to improve their economic viability and less environmental impact.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SHIOZAWA, SIMONE; GONCALVES, DANIEL; FERREIRA, MARCELA C.; MEIRELLES, ANTONIO J. A.; BATISTA, EDUARDO A. C. Liquid-liquid equilibrium data and thermodynamic modeling of systems involved in the biodiesel production in terms of acylglycerols, free fatty acids, ethyl esters, and ethanol at 303.2 and 318.2 K and local pressure. Fluid Phase Equilibria, v. 507, MAR 1 2020. Web of Science Citations: 0.
SHIOZAWA, SIMONE; FERREIRA, MARCELA C.; GONCALVES, DANIEL; MEIRELLES, ANTONIO J. A.; BATISTA, EDUARDO A. C. Liquid-Liquid Equilibrium Data for Systems Involving Triacylglycerols from (Soybean, Cottonseed, or Rice Bran) Oil plus Partial Acyiglycerols plus Anhydrous Ethanol at T=303.2 and 318.2 K. JOURNAL OF CHEMICAL AND ENGINEERING DATA, v. 64, n. 5, SI, p. 2153-2162, MAY 2019. Web of Science Citations: 0.

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