低碳化学与化工2026，Vol.51Issue(5)：36-45,10.DOI:10.12434/j.issn.2097-2547.20250225
老化处理促进Cu/SiO2原位还原增强糠醛加氢制糠醇反应性能
Improvement of in-situ reduction of Cu/SiO2 by aging treatment for enhancing reaction performance of furfural hydrogenation to furfuryl alcohol
摘要
Abstract
The selective hydrogenation of biomass-derived furfural to furfuryl alcohol is one of the important approaches for the conversion and utilization of biomass resources.Although Cu/SiO2 catalysts are widely employed in industry for hydrogenation,their catalytic activity in furfural hydrogenation remains insufficient.A series of Cu/SiO2 catalysts were prepared by co-precipitation method and then subjected to aging treatment at room temperature,60℃,80℃,100℃ and 120℃,respectively.The effects of aging temperatures on catalytic performances of Cu/SiO2 catalysts for furfural hydrogenation to furfuryl alcohol were investigated,and the variations of catalyst structures before and after reaction were analyzed.The results show that under the optimal reaction conditions of 20 mL furfural,0.2 g catalyst,reaction temperature of 180℃,reaction pressure of 3.5 MPa and reaction time of 2 h,the catalyst aged at 60℃(Cu/SiO2(60))exhibits excellent catalytic performance,achieving furfural conversion rate of 99.0％and furfuryl alcohol selectivity of 96.2％.The appropriate aging temperature(60℃)can promote the in-situ reduction of Cu2+species to active Cu0 and Cu+species during reaction process effectively,which can enhance the dispersion of Cu species and reduce their particle sizes,thereby significantly improving the catalytic performance of catalyst.关键词
Cu/SiO2催化剂/老化温度/糠醛加氢/原位还原Key words
Cu/SiO2 catalysts/aging temperatures/furfural hydrogenation/in-situ reduction分类
化学化工引用本文复制引用
高雯雯,梁越,王金山,王康军..老化处理促进Cu/SiO2原位还原增强糠醛加氢制糠醇反应性能[J].低碳化学与化工,2026,51(5):36-45,10.基金项目
辽宁省科技厅联合基金(2023-BSBA-264) （2023-BSBA-264）
辽宁省教育厅青年项目(JYTQN2023355). （JYTQN2023355）
