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

Author(s)

Shiozawa, Simone ; Ferreira, Marcela C. ; Goncalves, Daniel ; Meirelles, Antonio J. A. ; Batista, Eduardo A. C.

• Document type: Journal article
• Source: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 64, n. 5, p. 10-pg., 2019-05-01.

Abstract

Considering vegetable oils as complex multi component mixtures composed of triacylglycerols (TAGs), diacylglycerols (DAGs), and monoacylglycerols (MAGs) in liquid liquid extraction, as deacidification or another purification technique, it is crucial not only to describe the process, but also the oil enrichment in DAG content, or the obtainment of MAG-rich products, as emulsifiers. This study aimed to attain the liquid liquid equilibrium (LLE) data of systems composed of TAG of refined oils (soybean, cottonseed, and rice bran) + DAG + MAG + ethanol at T = 303.2 and 318.2 K. The components presented in the liquid phases in equilibrium (TAG, DAG, MAG, and ethanol) were quantified by high-performance size-exclusion chromatography (HPSEC). The preference of DAG for the oil-rich phase and of MAG to the solvent-rich phase is consistent to data reported in the literature. The average deviation between experimental and calculated compositions was less than 0.57% using the NRTL model and up to 6.21% using the original version of the UNIFAC model with two parameters set. (AU)

• FAPESP's process: 18/13207-6 - Extraction and computational simulation of ethanolic biodiesel production from peanut oil
• Grantee: Daniel Gonçalves
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
• Grantee: Roberto de Campos Giordano
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants
• FAPESP's process: 17/21607-1 - Use of ethanol associated with ionic liquids in vegetable oils refining and biodiesel physical properties production and modification
• Grantee: Marcela Cravo Ferreira
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
• Grantee: Antonio José de Almeida Meirelles
• Support Opportunities: Research Projects - Thematic Grants