应用化学2025，Vol.42Issue(6)：827-837,11.DOI:10.19894/j.issn.1000-0518.250117
HZSM-5载体酸性对Ru-Co催化糠醛还原胺化反应性能的影响
Effect of HSM-5 Support Acidity on the Catalytic Performances of Ru-Co for Reductive Amination of Furfural
摘要
Abstract
Furfural as an important lignocellulosic biomass derived platform molecule can be transferred into high-value added furfurylamine(FAM)by reductive amination reaction in the ammonia and hydrogen atmosphere.A variety of supported Ru-Co bimetallic catalysts were prepared by deposition-precipitation method,and their activities and product yield in reductive amination of furfural were compared and analyzed.Among them,the Ru-Co/HZSM-5(27)catalyst showed excellent catalytic activity and selectivity,yielding 93.8%FAM in reductive amination of furfural at the reaction condition of 90℃,0.8 MPa NH3 and 3 MPa H2.By means of X-ray diffraction(XRD),transmission electron microscopy(TEM),temperature programmed reduction of hydrogen(H2-TPR),temperature programmed desorption of ammonia and hydrogen(NH3-TPD,H2-TPD),the relationship between reductive amination performance and surface structure of the catalyst was investigated in detail.The properties of support,especially the surface acidity,significantly affect the catalytic performance.The excellent catalytic performance of Ru-9Co/HZSM-5(27)catalyst is attributed to its strong acidity and hydrogen activation ability.Through the synergistic effect between the hydrogenation site and the acidic site,the rapid hydrogenation of primary imine and the catalytic ammonolysis of gem-diamine intermediates were promoted,which effectively inhibited the polymerization of primary imine to form trimers and significantly improved the catalytic activity and yield to FAM.关键词
糠醛/糠胺/还原胺化/Ru-Co催化剂/酸性位点Key words
Furfural/Furfurylamine/Reductive amination/Ru-Co catalyst/Acidic site分类
化学引用本文复制引用
李健,程海洋,赵凤玉..HZSM-5载体酸性对Ru-Co催化糠醛还原胺化反应性能的影响[J].应用化学,2025,42(6):827-837,11.基金项目
国家重点研发计划项目(No.2022YFA1504901)资助 Supported by the National Key Research and Development Program of China(No.2022YFA1504901) （No.2022YFA1504901）
