Ru/HY催化剂催化对苯二酚加氢研究(英文)  

Study of Catalytic Hydrogenation of 1,4-Benzenediol over Ru/HY catalyst

作　　者：李贵贤[1] 董鹏[1] 王小瑞[1] 徐彦铎[1] 王成君[1] 刘扬[1] 

机构地区：[1]石油化工学院,兰州理工大学,兰州730050

出　　处：《分子催化》2012年第1期26-31,共6页Journal of Molecular Catalysis(China)

摘　　要：对苯二酚液相加氢制备1,4-环己二醇的途径环境友好,关键是研究高催化活性的催化剂来提高产物产率.我们以Ru/HY为催化剂用于对苯二酚加氢.用XRD,TEM对催化剂进行了表征,通过吡啶吸附红外对HY酸性的变化进行了讨论.对其反应条件进行了优化.结果表明3.0%Ru/HY的催化剂表现出高的活性,对苯二酚的转化率和1,4-环己二醇的选择性分别为96.5%和68.3%.我们还基于对Ru/HY催化剂结构的研究探讨并提出相应的反应机理.Liquid-phase catalytic hydrogenation of 1,4-benzenediol is an environmentally friendly routine for 1,4-cyclohexanediol production.The key to increasing product yield is to develop catalysts with high catalytic performance.In this work,Ru/HY catalysts were prepared and applied to the hydrogenation of 1,4-benzenediol to 1,4-cyclohexanediol.The activity of catalyst was investigated by XRD,TEM.The change of the HY acid content was discussed by pyridine adsorption infrared.The optimal reaction conditions were investigated.3.0% Ru/HY catalyst exhibited high activity with conversion of 1,4-benzenediol and selectivity of 1,4-cyclohexanediol up to 96.5% and 68.3%,respectively.Furthermore,based on the study of Ru/HY＇ structure,a plausible reaction mechanism for the selective formation of 1,4-benzenediol was proposed.

关 键 词：Ru/HY催化剂 催化加氢 对苯二酚 1 4-环己二醇 机理 

分 类 号：O643.32[理学—物理化学]