Pd/C催化剂在环己二醇脱氢反应中失活原因研究  

Study of deactivation reason for Pd/C catalyst in dehydrogenation of cyclohexanediol

作　　者：蒋卫和 郎洋 陈建刚[2] 林佩瑶 何嘉勇 屈铠甲 罗群兴 Jiang Weihe Lang Yang Chen Jiangang Lin Peiyao He Jiayong Qu Kaijia Luo Qunxing(Changde Chemcial Corporation Limited, Yueyang 414007, Hunan, China Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi＇an 710119, Shaanxi, China)

机构地区：[1]岳阳昌德化工实业有限公司,湖南岳阳414007 [2]应用表面与胶体化学教育部重点实验室陕西师范大学化学化工学院,陕西西安710119

出　　处：《工业催化》2017年第2期69-75,共7页Industrial Catalysis

基　　金：国家自然科学基金(21306111)资助项目;陕西省自然科学基金(2014JM2034)资助项目

摘　　要：针对Pd/C催化剂在环己二醇脱氢反应过程中的失活问题,采用XRD、N_2物理吸附-脱附、SEM-EDS、TEM、XPS、ICP-OES、TGA、FT-IR和Visible Raman光谱对反应前后催化剂进行表征。从催化剂的织构性质、催化剂表面活性物种的定性和定量分析以及催化剂积炭行为方面系统研究催化剂失活原因。In order to investigate the deactivation of Pd/C catalyst in dehydrogenation of cyclohexanediol, a series of characterization techniques, including XRD, N2-physical adsorption-desorption, SEM-EDS, TEM, XPS, ICP-OES, TGA, FT-IR and Visible Raman,were employed. On the basis of textural properties, qualitative and quantitative analysis of active species on the catalyst surface, as well as coke deposition, the reasons for deactivation of the catalysts were elucidated systematically.

关 键 词：催化化学 PD/C催化剂 环己二醇 脱氢 催化剂失活 邻苯二酚 

分 类 号：TQ426.94[化学工程] O643.36[理学—物理化学]