摘要
浸渍法制备Pd/AC催化剂,在二氢法尼基丙酮加氢反应过程中有失活现象,通过再生处理恢复催化活性。利用XRD、N_(2)吸附-脱附、ICP-AES、TEM、TG-MS等技术分析催化剂物化性质,探究失活机理。结果表明,反应过程中催化剂Pd金属粒径增加,且有明显积炭形成,金属团聚对催化剂活性影响不大,催化剂失活主要为积炭失活,为可逆失活。
Pd/AC catalyst prepared by impregnation method for the hydrogenation of farnesylacetone has deactivation phenomenon during the reaction process.After regeneration treatment,the catalyst activity was effectively recovered.The physical and chemical properties of the catalysts were analyzed by means of XRD,N_(2) adsorption-desorption,ICP-AES,TEM,TG-MS,etc.,and the deactivation mechanism was explored.The results show that the particle size of the active metal Pd increases during the reaction process,and there is obvious carbon deposition.The metal agglomeration has little effect on the catalyst activity.The deactivation of the catalyst is mainly caused by carbon deposition,which is reversible deactivation.
作者
程杰
高明明
万克柔
张炳亮
晁哲
郑金欣
Cheng Jie;Gao Mingming;Wan Kerou;Zhang Bingliang;Chao Zhe;Zheng Jinxin(Shaanxi Key Laboratory of Catalytic Materials and Technology,Xi’an 710201,Shaanxi,China;Xi’an key Laboratory of Catalytic Materials and Technology,Xi’an 710201,Shaanxi,China;National&Local Joint Engineering Research Center for New Noble Metal Catalysts R&D Technology,Xi’an 710201,Shaanxi,China;Kaili Catalyst&New Materials Co.,Ltd.,Xi’an 710201,Shaanxi,China)
出处
《工业催化》
CAS
2023年第8期34-38,共5页
Industrial Catalysis
基金
陕西省创新能力支撑计划(2020TD-007)。
关键词
催化化学
法尼基丙酮
积炭失活
金属粒径
Pd/AC催化剂
catalytic chemistry
farnesylacetone
deactivation of carbon deposition
metal particle size
Pd/AC catalyst
