Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Liquid-liquid Equilibrium Of Pseudoternary Systems Containing Glycerol+ethanol+ethylic Biodiesel From Crambe Oil (crambe Abyssinica) At T/k=(298.2, 318.2, 338.2) And Thermodynamic Modeling|
de Almeida Meirelles A.J.
|Abstract:||In the present work liquid-liquid equilibrium (LLE) data were obtained for systems composed of glycerol. +. ethanol. +. distilled fatty acid ethyl esters from crambe oil at T/K = 298.2, 318.2 and 338.2. The experimental data measured for these systems were used to adjust the binary interaction parameters between their components for NRTL model treating the mixture of ester as a single ethyl ester, with the average molar mass of the mixture of esters. Two sets of UNIFAC binary interaction parameters were also tested to predict the LLE of the systems. Ethanol, which is distributed in the glycerol-rich and ester-rich phases, showed a greater affinity to the glycerol rich phase. Glycerol and FAEE presented very low miscibility. The average deviations related to mass fraction composition between experimental and calculated values by the NRTL model were less than 0.82% and by the UNIFAC model were between 2.27% and 3.97%, considering the two different sets of binary interaction parameters. © 2012 Elsevier B.V.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.