Na-Ce-modified-SBA-15 as an effective and reusable bimetallic mesoporous catalyst for the sustainable production of biodiesel

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020-08-01

Autores

Edgar M. Sánchez Faba (Autor) Outra; Gabriel O. Ferrero (Autor) Outra; Joana M. Dias (Autor) FEUP; Griselda A. Eimer (Autor) Outra

Revista

Título: Applied Catalysis A: General

Vol. 604

Páginas: 1-10

ISSN: 0926-860X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 6 Citações

Outras Informações

ID Authenticus: P-00S-MMN

DOI: 10.1016/j.apcata.2020.117769

Abstract (EN): With the purpose to compete with the homogeneous catalytic biodiesel production, a highly efficient bimetallic solid catalyst with high exposed surface, high basicity, and reusable throughout several reaction cycles, was developed by doping SBA-15 with sodium and cerium in different concentrations. The catalyst with 5 wt% of Na and 20 wt% of Ce showed good structural ordering and had the highest basicity due to the presence of a large amount of medium and strong sites compared to the other materials. It was effectively used as a solid base catalyst for biodiesel production from sunflower oil and absolute methanol. The highest FAME content (98.9 wt %) was achieved under optimum conditions of 40:1 methanol/oil molar ratio, 10 wt% catalyst loading, 60 degrees C, stirring speed of 600-700 rpm and 180 min. Further, this material was reused for five consecutive runs, obtaining FAME contents greater than 90 % in each one of them.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10