Rusiene M. de Almeida scite author profile

A 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 CO 2 and H 2 O present in the ambient air was verified. It was confirmed that the active catalytic site is a hydrogenocarbonate adsorption site.

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TiO2 with a high sulfate content—thermogravimetric analysis, determination of acid sites by infrared spectroscopy and catalytic activity

Noda

Almeida

Gonçalves

et al. 2003

Catalysis Today

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Synthesis of mesoporous Al2O3 macrospheres using the biopolymer chitosan as a template: A novel active catalyst system for CO2 reforming of methane

et al. 2005

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Preparation and evaluation of porous nickel-alumina spheres as catalyst in the production of hydrogen from decomposition of methane

Almeida

Fajardo

Mezalira

et al. 2006

Journal of Molecular Catalysis A: Chemical

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Transesterification of soybean oil in the presence of diverse alcoholysis agents and Sn(IV) organometallic complexes as catalysts, employing two different types of reactors

Mendonça

Silva

Almeida

et al. 2009

Applied Catalysis A: General

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Effect of Ni loading and reaction temperature on the formation of carbon nanotubes from methane catalytic decomposition over Ni/SiO2

et al. 2007

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