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Title: Screening, optimization and kinetics of Jatropha curcas oil transesterification with heterogeneous catalysts
Authors: Zanette, Andréia F.
Barella, Rodrigo Augusto
Pergher, Sibele Berenice Castellã
Treichel, Helen
Oliveira, Débora
Mazutti, Marcio A.
Silva, Edson Antonio
Oliveira, Jose Vladimir
Keywords: Biodiesel;Jatropha curcas oil;Heterogeneous catalysis;Kinetics
Issue Date: Feb-2011
Publisher: Elsevier
Citation: ZANETTE, Andréia F.; BARELLA, Rodrigo A.; PERGHER, Sibele Berenice Castellã; TREICHEL, Helen; OLIVEIRA, Débora; MAZUTTI, Marcio A.; SILVA, Edson A.; OLIVEIRA, J. Vladimir. Screening, optimization and kinetics of Jatropha curcas oil transesterification with heterogeneous catalysts. Renewable Energy, [s. l.], v. 36, n. 2, p. 726-731, fev. 2011. ISSN 1879-0682 versão online. DOI Disponível em: Acesso em: 08 jun. 2020.
Portuguese Abstract: This work investigates the production of fatty acid methyl esters (FAME) from Jatropha curcas oil using a variety of heterogeneous catalysts: resins, zeolites, clays, hydrotalcites, aluminas and niobium oxide. For this purpose, a catalyst screening was first conducted in a batch reactor at the following operating conditions: oil to methanol molar ratio of 1:9, 6 h of reaction, 5 wt% catalyst, at 333 and 393 K. From the screening step, KSF clay and Amberlyst 15 catalysts were selected to carry out a 23 full factorial central composite rotatable design so as to elucidate the effects of process variables on FAME yield. The optimum reaction conditions for both catalysts were found to be oil to methanol molar ratio of 1:12, 5 wt% of catalyst, 433 K and 6 h of reaction with a FAME yield of about 70 wt%. A kinetic study was then experimentally performed and a semi-empirical model was built to represent the experimental data. Finally, catalyst re-utilization in five successive batch experiments was evaluated at the optimized conditions.
ISSN: 0960-1481 (print), 1879-0682 (online)
Appears in Collections:IQ - Artigos publicados em periódicos

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