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Kinetics and Modelling of Levulinic Acid Esterification in Batch and Continuous Reactors.
- Source :
-
Topics in Catalysis . Nov2018, Vol. 61 Issue 18/19, p1856-1865. 10p. 4 Charts, 12 Graphs. - Publication Year :
- 2018
-
Abstract
- The ethyl ester of levulinic acid, ethyl levulinate is a completely bio-based chemical made from levulinic acid, which is a hydrolysis product of cellulose and bio-ethanol. The very precise kinetics of levulinic acid esterification with ethanol was studied in an isothermal batch reactor in the presence of homogeneous (H2SO4) and heterogeneous catalysts (cation exchange resin Smopex-101). The temperature interval of the experiments was 50-70 °C. A kinetic model was proposed for both kinds of catalysts, adopting equilibrium rate expressions in any case. The different role of the catalyst used was considered separately, while a unique equilibrium constant was assumed for each system. The kinetic parameters were successfully determined by non-linear regression analysis. The model gave a very good description to the experimental data. The heterogeneous catalyst was used to demonstrate the feasibility of continuous operation in isothermal fixed bed reactors. The catalyst showed a good stability and high conversions of levulinic acid were obtained in the laboratory-scale fixed bed reactor. The model was able to predict both dynamic and steady-state experimental data. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10225528
- Volume :
- 61
- Issue :
- 18/19
- Database :
- Academic Search Index
- Journal :
- Topics in Catalysis
- Publication Type :
- Academic Journal
- Accession number :
- 132879893
- Full Text :
- https://doi.org/10.1007/s11244-018-0998-y