Selective hydrogenation of furfural on Ir/TiO2 catalysts

Química Nova

Rojas, Hugo¹  Fierro, José Luís García¹  Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia¹  Salinas, Daniela¹  Murcia, Julie¹  Oportus, Marcelo¹  Borda, Gloria¹  Campos, Cristian¹  Instituto de Catálisis y Petroleoquímica, Madrid, Spain¹  Reyes, Patricio¹  Universidad de Concepción, Chile¹ 

关键词: iridium;    TiO2;    furfural.;   

DOI  :  10.1590/S0100-40422010000400002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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%.

【 授权许可】

Unknown