Artículos de revistas
Liquid-Liquid Equilibrium Study in Ternary Castor Oil Biodiesel plus Ethanol plus Glycerol and Quaternary Castor Oil Biodiesel plus Ethanol plus Glycerol plus NaOH Systems at (298.2 and 333.2) K
Registro en:
Journal Of Chemical And Engineering Data. Amer Chemical Soc, v. 56, n. 5, n. 2196, n. 2201, 2011.
0021-9568
WOS:000290427200063
10.1021/je101235f
Autor
Machado, AB
Ardila, YC
de Oliveira, LH
Aznar, M
Maciel, MRW
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) In this work, ternary liquid liquid equilibrium (LLE) data for the castor oil biodiesel (BIO-CO) + ethanol + glycerol and quaternary LLE data for biodiesel (BIO-CO) + ethanol + glycerol + NaOH systems at (298.2 and 333.2) K and atmospheric pressure (approximate to 95 kPa) were determined by gas chromatography. The influence of temperature and catalyst in the phase diagrams were studied. Ethanol partition coefficients and biodiesel selectivities were calculated. Results showed that ethanol distributed slightly more to the glycerol phase and that biodiesel solubilizes preferentially ethanol than glycerol. LLE experimental data were correlated with the NRTL model, presenting root-mean-square deviations < 1.3 %. Hand and Othmer-Tobias correlations were used to test the data quality, which presented R(2) > 0.98 for all systems. 56 5 2196 2201 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)