ZrO_(2)促进的铜基催化剂上乙酸仲丁酯加氢的研究  

Hydrogenation of sec-butyl acetate over ZrO_(2) modified Cu-based catalysts

作　　者：阳文杰 郑剑[1] 余良军 张玲宏 储伟[1] YANG Wen-jie;ZHENG Jian;YU Liang-jun;ZHANG Ling-hong;CHU Wei(School of Chemical Engineering,Sichuan University,Chengdu 610065,China;HuiZhou Yessen Chemical Co.,LTD,Huizhou 516000,China.)

机构地区：[1]四川大学化学工程学院,四川成都610065 [2]惠州宇新化工有限责任公司,广东惠州516000

出　　处：《化学研究与应用》2021年第11期2143-2149,共7页Chemical Research and Application

基　　金：宇新化工委托横向项目(00307055A1010)资助。

摘　　要：以水滑石为前驱体制备了氧化锆助剂促进型铜基催化剂,对其在乙酸仲丁酯加氢制仲丁醇反应中的催化性能进行了评价,结合H_(2)-TPR、XPS和HRTEM等分析了催化剂的理化性质和形貌。对比不含助剂的铜基样品,15 wt.%的ZrO_(2)促进的催化剂表现出最佳的性能,在乙酸仲丁酯的液时空速达到1.50 g_(SBAC)·g_(cat)^(-1)·h^(-1)时仍保持高于94%的转化率,TOF提升了约30%,表观活化能从63.5 kJ·mol^(-1)降低至30.4 kJ·mol^(-1)。The Cu-based catalyst was derived from layered double hydroxides(LDHs)precursor,its performance in hydrogenation of sec-butyl acetate(SBAC)to sec-butanol(SBA)was evaluated,and studied the physicochemical properties of catalysts according to the results of H_(2)-TPR,XPS and HRTEM et al.Compared with the ZrO_(2)-free sample,the CuZr15/MMO sample showed best performance,the SBAC conversion remained higher than 94%even at relative large weight hourly space velocity(WHSV)of 1.50 g_(SBAC)·g_(cat)^(-1)·h^(-1),the TOF increased by about 30%,and the apparent activation energy reduced from 63.5 kJ·mol^(-1)to 30.4 kJ·mol^(-1).

关 键 词：铜基催化剂 乙酸仲丁酯合成仲丁醇 选择性加氢 ZrO_(2)助剂 水滑石结构 

分 类 号：O614.12[理学—无机化学]