石油化工高等学校学报2026，Vol.39Issue(1)：43-52,10.DOI:10.12422/j.issn.1006-396X.2026.01.006
大孔-介孔等级孔Cu基催化剂对丁二烯选择性加氢性能研究
Study on Selective Hydrogenation of Butadiene over Macroporous-Mesoporous Hierarchical Cu-Based Catalysts
摘要
Abstract
The current commercial Pd-based catalysts are expensive,so there is a need to develop alternative low-cost metal catalysts.In this study,hierarchical porous copper-based catalysts were synthesized via selective etching by adjusting alkali concentration,and were characterized using techniques including XRD,SEM,BET,MIP,and N2O chemisorption.The hydrogenation performance of the hierarchical porous Cu-based catalyst was evaluated under conditions of GHSV 30 000 h-1 and V(H2)/V(C3H6)/V(C4H6)/V(He)=137:98:1:196.Results indicate that the Cu-based catalyst possesses a hierarchical pore structure comprising macropores(4～5 μm)and mesopores(2～25 nm).The full conversion temperature of the hierarchical porous Cu-based catalyst is as low as 105 ℃,significantly lower than that of commercial Cu powder(220 ℃),while demonstrating stability exceeding 180 hours.The introduction of the hierarchical pore structure increases the active surface area of the catalyst and enhances the number of Cu active sites.Moreover,retaining an appropriate amount of Al species helps maintain the hierarchical pore structure and improves the resistance of Cu active sites to deactivation.关键词
多孔材料/碱刻蚀/Cu基催化剂/选择性加氢/低碳烯烃Key words
Hierarchical porous materials/Alkaline etching/Copper-based catalysts/Selective hydrogenation/Light olefin分类
化学化工引用本文复制引用
洪盈,李子丹,阮红星,王婉仪,黄传峰,苏宝连,王朝..大孔-介孔等级孔Cu基催化剂对丁二烯选择性加氢性能研究[J].石油化工高等学校学报,2026,39(1):43-52,10.基金项目
国家自然科学基金重大项目(22293020,22293022). （22293020,22293022）
