Extraction of free fatty acids from soybean oil using ionic liquids or poly(ethyleneglycol)s

M.S. Manic, V. Najdanovic-Visak, M.N. da Ponte, Z.P. Visak

Research output: Contribution to journalArticle

Abstract

The alternative solvents poly(ethyleneglycol)s (PEGs) with various molar masses and room temperature ionic liquids (RTILs) AMMOENG100 and 1‐butyl‐3‐methylimidazolium dicyanamide (bmimDCA) were studied for the purpose of extraction of linoleic acid from soybean oil. Liquid‐liquid phase equilibrium was measured for binary (PEG + soybean oil), (RTIL + soybean oil) as well as ternary (PEG + soybean oil + linoleic acid), (RTIL + soybean oil + linoleic acid) mixtures, as a function of temperature and composition. The influence on distribution coefficients and separation factor of temperature, initial acid content of the oil and solvent to oil ratio were studied. The effect of molar mass in the case of the PEGs was also examined. The experimental results were modeled using the Peng‐Robinson cubic equation of state coupled with the Mathias‐Klotz‐Prausnitz mixing rule, with good results.
Original languageEnglish
Pages (from-to)1344-1355
JournalAIChE Journal
Volume57
Issue number5
DOIs
Publication statusPublished - 1 May 2011

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Ionic Liquids
Soybean oil
Soybean Oil
Ionic liquids
Fatty acids
Nonesterified Fatty Acids
Linoleic acid
Polyethylene glycols
Linoleic Acid
Temperature
Molar mass
Oils
Oil and Gas Fields
Equations of state
Phase equilibria
Acids
Chemical analysis

Cite this

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abstract = "The alternative solvents poly(ethyleneglycol)s (PEGs) with various molar masses and room temperature ionic liquids (RTILs) AMMOENG100 and 1‐butyl‐3‐methylimidazolium dicyanamide (bmimDCA) were studied for the purpose of extraction of linoleic acid from soybean oil. Liquid‐liquid phase equilibrium was measured for binary (PEG + soybean oil), (RTIL + soybean oil) as well as ternary (PEG + soybean oil + linoleic acid), (RTIL + soybean oil + linoleic acid) mixtures, as a function of temperature and composition. The influence on distribution coefficients and separation factor of temperature, initial acid content of the oil and solvent to oil ratio were studied. The effect of molar mass in the case of the PEGs was also examined. The experimental results were modeled using the Peng‐Robinson cubic equation of state coupled with the Mathias‐Klotz‐Prausnitz mixing rule, with good results.",
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Extraction of free fatty acids from soybean oil using ionic liquids or poly(ethyleneglycol)s. / Manic, M.S.; Najdanovic-Visak, V.; da Ponte, M.N.; Visak, Z.P.

In: AIChE Journal, Vol. 57, No. 5, 01.05.2011, p. 1344-1355.

Research output: Contribution to journalArticle

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