Effect of lanthanide ion doping on Mg-Al mixed oxides as active acid-base catalysts for fatty acid ethyl ester synthesis

Autor(es)

Rossi, Jessika de Souza ^[1] ; Perrone, Olavo Micali ^[1] ; Siqueira, Marcos Rechi ^[1] ; Volanti, Diogo Paschoalini ^[1] ; Gomes, Eleni ^[1] ; Da-Silva, Roberto ^[1] ; Boscolo, Mauricio ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Inst Biosci Humanities & Exact Sci, Sao Jose Do Rio Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: RENEWABLE ENERGY; v. 133, p. 367-372, APR 2019.
• Citações Web of Science: 2

Resumo

MgAl-hydrotalcites (HT) containing 1-2% of the lanthanide ions La3+, Ce3+ and Lu3+ were evaluated as heterogeneous catalysts in the transesterification process for fatty acid ethyl ester (FREE) synthesis in order to understand the effect of the high ionic-radii of these metals in the material structure and their catalytic activity. The addition of lanthanides to the catalysts resulted in a decrease of the thermal degradation temperature as well as the specific surface, but, on the other hand, it increases the basicity, crystallinity, and improve the yield in biodiesel production. In general, MMOs with 1% of lanthanides showed higher yields than those with 2%, and the oxide with 1% of Lu3+ reached the best catalytic result for ethanol biodiesel production (84%), about 4.5 times greater than the reference material. (C) 2018 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 14/20504-6 - Influência de elementos terras-raras nas propriedades catalíticas de hidrotalcitas e seus óxidos para produção de biodiesel etílico
• Beneficiário: Jessika de Souza Rossi
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 15/11588-4 - Hidrotalcitas contendo Ag, Cu, Ni, Fe, La ou Nb como catalisadores para desidrogenação de etanol e hidrogenação do bagaço de cana
• Beneficiário: Olavo Micali Perrone
• Modalidade de apoio: Bolsas no Brasil - Doutorado