| Full text | |
| Author(s): |
Basso, R. C.
;
Meirelles, A. J. de A.
;
Batista, E. A. C.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Chemical Engineering; v. 34, n. 1, p. 341-353, JAN-MAR 2017. |
| Web of Science Citations: | 1 |
| Abstract | |
The goals of this work were to present original liquid-liquid equilibrium data of the system containing glycerol + ethanol + ethyl biodiesel from fodder radish oil, including the individual distribution of each ethyl ester; to adjust binary parameters of the NRTL; to compare NRTL and UNIFAC-Dortmund in the LLE representation of the system containing glycerol; to simulate different mixer/settler flowsheets for biodiesel purification, evaluating the ratio water/biodiesel used. In thermodynamic modeling, the deviations between experimental data and calculated values were 0.97% and 3.6%, respectively, using NRTL and UNIFAC-Dortmund. After transesterification, with 3 moles of excess ethanol, removal of this component until a content equal to 0.08 before an ideal settling step allows a glycerol content lower than 0.02% in the ester-rich phase. Removal of ethanol, glycerol and water from biodiesel can be performed with countercurrent mixer/settler, using 0.27% of water in relation to the ester amount in the feed stream. (AU) | |
| FAPESP's process: | 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds |
| Grantee: | Antonio José de Almeida Meirelles |
| Support Opportunities: | Program for Research on Bioenergy (BIOEN) - Thematic Grants |