Selective hydrogenation of furfural on Ir/TiO2 catalysts
AUTOR(ES)
Reyes, Patricio, Salinas, Daniela, Campos, Cristian, Oportus, Marcelo, Murcia, Julie, Rojas, Hugo, Borda, Gloria, Fierro, José Luís García
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2010
RESUMO
Titania-supported Ir catalysts were used in the hydrogenation of furfural. Reactions were carried out in a stirred batch type reactor at 0.62MPa and 363K using a 0.10M solution of furfural in a 1:1 mixture n-heptane -ethanol as solvent. Catalysts containing 2 wt% of Ir were reduced in H2 flow at different temperatures in the range 473-773K. The catalysts were characterized by H2 chemisorption, TEM, TPR, TPD of NH3 and XPS. Conversion of furfural is higher at lower reduction temperatures, but leads to byproducts whereas reduction at higher temperatures shows selectivity to furfuryl alcohol close to 100%.
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