Transesterification reaction of vegetable oils, using superacid sulfated TiO2-base catalysts

Transesterification reaction of vegetable oils, using superacid sulfated TiO2-base catalysts

Autor Almeida, Rusiene M. de Google Scholar
Noda, Lucia K. Autor UNIFESP Google Scholar
Goncalves, Norberto S. Autor UNIFESP Google Scholar
Meneghetti, Simoni M. P. Google Scholar
Meneghetti, Mario R. Google Scholar
Instituição Univ Fed Alagoas
Universidade Federal de São Paulo (UNIFESP)
Resumo Superacid sulfated titania catalyst, TiO2/SO4 (TS-series), have been prepared via the sol-gel technique, with different sulfate concentrations. the relation of structure and catalytic activity of the prepared material have been evaluated. the obtained material was characterized by several techniques, as infrared and Raman absorption spectroscopy. pyridine-adsorption infrared spectroscopy, thermogravimetric analyses and obtention of N-2 adsorption-desorption isotherms. the catalyst that exhibits the highest catalytic activity in the methanolysis of soybean and castor oils at 120 degrees C, for 60 min (40% and 25%, respectively) was that which displayed the highest specific surface area, average pores diameter and pore volume, and highest percentage in sulfate groups (TS-5). (c) 2008 Elsevier B.V. All rights reserved.
Assunto superacids
biodiesel
transesterification
TiO2/SO4
Idioma Inglês
Financiador Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
BNB
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Data 2008-09-01
Publicado em Applied Catalysis A-general. Amsterdam: Elsevier B.V., v. 347, n. 1, p. 100-105, 2008.
ISSN 0926-860X (Sherpa/Romeo, fator de impacto)
Editor Elsevier B.V.
Extensão 100-105
Fonte http://dx.doi.org/10.1016/j.apcata.2008.06.006
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000258814400013
URI http://repositorio.unifesp.br/handle/11600/30880

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