糠醛
木糖
催化作用
化学
产量(工程)
布朗斯特德-洛瑞酸碱理论
异构化
路易斯酸
双功能
木糖代谢
有机化学
核化学
材料科学
发酵
冶金
作者
Chengjiang Fang,Weibo Wu,Hu Li,Tingting Yang,Wenfeng Zhao,Zhongwei Wang,Song Yang
标识
DOI:10.1080/15567036.2017.1402103
摘要
Aqueous-phase catalytic conversion of biomass-derived xylose to value-added furfural typically involves cascade xylose-to-xylulose isomerization and dehydration. To simplify this catalytic process with improved efficiency, a Lewis and Brønsted acid bifunctional NbOPO3 catalyst was synthesized by an impregnation method. The effects of reaction time/temperature, catalyst dosage, and the substrate concentration, as well as reaction kinetics, were studied. A high furfural yield of 54.9 mol% was obtained at 180°C for 3 h. The synergistic effect of Lewis and Brønsted acid sites in the highly recyclable NbOPO3 catalyst was demonstrated to be important for efficient conversion of xylose to furfural.
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