石油化工2025，Vol.54Issue(8)：1063-1072,10.DOI:10.3969/j.issn.1000-8144.2025.08.001
低载量Cu/Al2O3催化辛烯醛加氢反应研究
Low-loading Cu/Al2O3 catalysts for 2-ethyl-2-hexenal hydrogenation reaction
摘要
Abstract
Low-loading Cu/Al2O3 catalysts were prepared and characterized by means of XRD,XRF,XPS,HRTEM,STEM-EDS,N2 adsorption-desorption,H2-TPR,and N2O-H2 redox titration.Catalytic performance of prepared catalysts for 2-ethyl-2-hexenal hydrogenation was evaluated.The structure-activity relationship of Cu/Al2O3 catalysts was established,and the effects of reaction conditions,such as H2 pressure were investigated.Characterization results show that the prepared 5%(w)Cu/Al2O3 catalyst possesses high specific surface area(172 m2/g),uniform mesoporous structure(most probable pore size 11.8 nm),and relatively high metal dispersion(35%).Moreover,catalytic performance evaluation results indicate that increased metal dispersion and H2 pressure may accelerate the hydrogenation reaction of both 2-ethyl-2-hexenal and 2-ehtylhexanal while making little impact on the selectivity of 2-ethyl-2-hexenol.关键词
α,β-不饱和醛/选择加氢/铜催化剂/氧化铝载体Key words
α,β-unsaturated aldehydes/selective hydrogenation/copper catalysts/alumina support分类
化学化工引用本文复制引用
徐聪,徐洋,夏予顺,鲁树亮..低载量Cu/Al2O3催化辛烯醛加氢反应研究[J].石油化工,2025,54(8):1063-1072,10.基金项目
中国石油化工集团公司资助项目(225014). （225014）
