Resumo

ROJAS, HUGO; MARTINEZ, JOSÉ J.  e  REYES, PATRICIO. KINETIC BEHAVIOR IN THE HYDROGENATION OF FURFURAL OVER IR CATALYSTS SUPPORTED ON TIO₂. Dyna rev.fac.nac.minas [online]. 2010, vol.77, n.163, pp.151-159. ISSN 0012-7353.

The kinetics of the liquid-phase hydrogenation of furfuraldehyde to furfuryl alcohol over Ir catalysts supported over TiO₂ was studied in the temperature range of 323 to 373 K. The effect of furfural concentration, hydrogen pressure and the solvent effect were also studied. A high selectivity towards furfuryl alcohol was demonstrated. Initial rates describes the order global of the reaction. The experimental data could also be explained using the Langmuir-Hinshelwood model with of a single-site with dissociative adsorption of hydrogen and the surface reaction as the rate-controlling step provided the best fit of the experimental data.

Palavras-chave : Furfural; hydrogenation; SMSI effect; kinetic study.

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