Experimental (liquid+liquid) equilibrium data for ternary and quaternary mixtures of fatty acid methyl and ethyl esters (FAME/FAEE) from soybean oil

Beneti, Stéphani Caroline; Lanza, Marcelo; Mazutti, Márcio A.; Kunita, Marcos H.; Cardozo‐Filho, Lúcio; Oliveira, J. Vladimir

doi:10.1016/j.jct.2013.08.032

Cited by 14 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The consistency of the tie-line data experimentally measured were tested by Hand correlations [16,23,24] and the Othmer-Tobias, equations (13) and 14:…”

Section: Consistency Of Experimental Tie-line Datamentioning

confidence: 99%

See 1 more Smart Citation

Liquid–liquid equilibria for ternary systems polyoxymethylene dimethyl ethers + para-xylene + water

Zhihai

Zhang

Liu

et al. 2016

The Journal of Chemical Thermodynamics

View full text Add to dashboard Cite

Polyoxymethylene dimethyl ethers (PODEn) are promising diesel additives which can be synthesized from formaldehyde and methanol. In this work, the ternary liquid-liquid equilibria (LLE) were analytically determined at 293.15 K and 313.15 K for the following systems: PODE1+para-xylene(PX)+water, PODE2+PX+water, PODE3+PX+water, PODE4+PX+water, respectively. The isothermal experimental results have shown a good linear fit in Hand plots and the Othmer-Tobias. The design of the solvent extraction equipment for extracting PODEn from aqueous solution requires an appropriate model for the liquid-liquid phase equilibrium. The wellknown NRTL and UNIQUAC thermodynamic models were applied to correlate the experimental data, and the results indicate that the UNIQUAC model gives a better agreement.

show abstract

“…The consistency of the tie-line data experimentally measured were tested by Hand correlations [16,23,24] and the Othmer-Tobias, equations (13) and 14:…”

Section: Consistency Of Experimental Tie-line Datamentioning

confidence: 99%

“…The optimization of the binary model parameters and quality of the correlation can be evaluated by the root-mean square deviation (RMSD). The RMSD value was calculated based on the difference between the experimental and calculated data according to the following equation [16,23,24]:…”

mentioning

confidence: 99%

Liquid–liquid equilibria for ternary systems polyoxymethylene dimethyl ethers + para-xylene + water

Zhihai

Zhang

Liu

et al. 2016

The Journal of Chemical Thermodynamics

View full text Add to dashboard Cite

show abstract

“…data. [29]). and c) Soybean ethyl biodiesel (w 8 ), glycerol (w 2 ) and ethanol (w 9 ) at 300.15 K (exp.…”

Section: Acknowledgmentsmentioning

confidence: 99%

Liquid-liquid equilibrium for biodiesel-glycerol-methanol or ethanol systems using UNIFAC correlated parameters

Noriega

Narváez

Imbachi

et al. 2016

Energy

View full text Add to dashboard Cite

“…The search for alternative sources of energy has become quite intense, and the reasons can be related to the unwanted oscillations in oil price, the supposed future shortage of fossil fuels, and some well-known environmental concerns related to this nonrenewable commodity . One rather promising source is biodiesel from vegetable oils or animal fat, which constitutes a viable fuel, especially for transportation purposes.…”

Section: Introductionmentioning

confidence: 99%

Experimental Data and Phase Equilibrium Modeling in Ternary and Pseudoquaternary Systems of Sunflower Oil for Biodiesel Production

et al. 2019

View full text Add to dashboard Cite

Biodiesel production consists of several processes, the reaction stage being the most important. However, after reaction, the biodiesel product undergoes separation involving an aqueous phase, hence, the need for accurate information on liquid−liquid equilibrium (LLE) parameters of mixtures formed by biodiesel, alcohol, glycerol, and the aqueous phase. We here performed experiments on ternary and pseudoquaternary systems of sunflower biodiesel to gather data to estimate binary interaction parameters for LLE using the UNIQUAC model. Our results showed that temperature had essentially no effect on ternary systems, with a small reduction of the immiscibility region at 318.15 K. As for the pseudoquaternary systems, we observed that by increasing the amount of the aqueous phase from 50 to 75%, the region of phase separation increased, and the solubility of biodiesel in the glycerol-rich phase decreased, with no significant change in the binodal curves and tie-lines. We then successfully estimated the binary interaction parameters and observed that very good agreement was obtained between the experimental data and the calculated values using the UNIQUAC model, with maximum deviations of about 0.25%. We thus firmly believe that such parameters can be safely used, e.g., to design and efficiently operate separation processes for systems like the ones investigated in this article.

show abstract

Experimental (liquid+liquid) equilibrium data for ternary and quaternary mixtures of fatty acid methyl and ethyl esters (FAME/FAEE) from soybean oil

Cited by 14 publications

References 26 publications

Liquid–liquid equilibria for ternary systems polyoxymethylene dimethyl ethers + para-xylene + water

Liquid–liquid equilibria for ternary systems polyoxymethylene dimethyl ethers + para-xylene + water

Liquid-liquid equilibrium for biodiesel-glycerol-methanol or ethanol systems using UNIFAC correlated parameters

Experimental Data and Phase Equilibrium Modeling in Ternary and Pseudoquaternary Systems of Sunflower Oil for Biodiesel Production

Contact Info

Product

Resources

About