Magnesium oxide prepared via metal–chitosan complexation method : application as catalyst for transesterification of soybean oil and catalyst deactivation studies.

Almerindo, Gizelle InácioProbst, Luiz Fernando DiasCampos, Carlos Eduardo Maduro deAlmeida, Rusiene Monteiro deMeneghetti, Simoni Margareti PlentzMeneghetti, Mario RobertoClacens, Jean-MarcFajardo, Humberto Vieira2015-04-092015-04-092011ALMERINDO, G. I. et al. Magnesium oxide prepared via metal–chitosan complexation method: application as catalyst for transesterification of soybean oil and catalyst deactivation studies. Journal of Power Sources, v. 196, p. 8057-8063, 2011. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0378775311009967>. Acesso em: 02 fev. 2015.0378-7753http://www.repositorio.ufop.br/handle/123456789/4974A simple method to prepare magnesium oxide catalysts for biodiesel production by transesterification reaction of soybean oil with ethanol is proposed. The method was developed using a metal–chitosan complex. Compared to the commercial oxide, the proposed catalysts displayed higher surface area and basicity values, leading to higher yield in terms of fatty acid ethyl esters (biodiesel). The deactivation of the catalyst due to contact with CO2 and H2O present in the ambient air was verified. It was confirmed that the active catalytic site is a hydrogenocarbonate adsorption site.en-USMagnesium oxideChitosanEthanolBiodieselMagnesium oxide prepared via metal–chitosan complexation method : application as catalyst for transesterification of soybean oil and catalyst deactivation studies.Artigo publicado em periodicoO periódico Journal of Power Sources concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3580760453838https://doi.org/10.1016/j.jpowsour.2011.05.030