Selective hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol over Ni/γ-Al₂O₃ catalysts

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• 作者：Shengya Sang ; Yuan Wang ; Wei Zhu ; Guomin Xiao
• 关键词：Ni/γ ; Al2O3 ; Hydrogenation ; Furfuryl alcohol ; Tetrahydrofurfuryl alcohol
• 刊名：Research on Chemical Intermediates
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：43
• 期：2
• 页码：1179-1195
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Catalysis; Physical Chemistry; Inorganic Chemistry;
• 出版者：Springer Netherlands
• ISSN：1568-5675
• 卷排序：43

文摘

A series of nickel-based catalysts (with <5 nm Ni particle size) with γ-alumina as a support (x wt% Ni/γ-Al₂O₃, x represents the Ni loading amount) were synthesized by the impregnation method, which was successfully applied for the catalytic hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol. The effects of reaction time, reaction temperature, nickel loading amount, solvent, and hydrogen pressure on conversion of furfural alcohol as well as selectivity for tetrahydrofurfuryl alcohol were investigated systematically. The conversion of furfural alcohol over 15 wt% Ni/γ-Al₂O₃ was up to 99.8 % with a selectivity of 99.5 % toward tetrahydrofurfuryl alcohol, when the reaction was carried out at 353 K with an initial H₂ pressure of 4.0 MPa and reaction time of 2 h. In addition, there was an increase of turnover frequency (TOF) value with the decrease of Ni particle size. The features of the Ni/γ-Al₂O₃ catalysts were investigated by characterization of XRD, TPR, BET, and SEM.