摘要
选取4种不同结构的活性炭作为载体制备钌基催化剂,并采用BET、拉曼光谱、TPD-MS和TG等对载体及催化剂进行表征,研究活性炭载体性质对钌基催化剂乙炔氢氯化性能的影响。结果表明,活性炭的孔隙结构及表面结构对催化剂活性有显著影响,其中孔隙结构占主导地位,其次是表面结构。活性炭的比表面积与催化剂活性成正相关,同时载体需要适当的微孔结构,但微孔含量高,易发生堵塞和积炭导致活性降低。当催化剂孔隙结构相近,高的含氧量或缺陷度能够提高催化活性。2#AC活性炭具有高的比表面积、含氧量和缺陷位,因此具有最高活性和最佳稳定性。
Four kinds of activated carbon with different structures were selected as supports to prepare ruthenium-based catalysts.The structures of supports and catalysts were characterized by BET,Raman,TPD-MS and TG,and the effect of properties of activated carbon on the performance of ruthenium catalyst for acetylene hydrochlorination were studied.The results show that the pore structure and surface structure of activated carbon have a significant impact on the activity of the catalyst,in which the pore structure is dominant,followed by the surface structure.The specific surface area of activated carbon is positively correlated with the activity of catalyst.In addition,the appropriate porous structure is critical,as microporous are prone to blockage and carbon deposition,resulting in reduced activity.When the pore structure of the catalyst is similar,high oxygen content or defect sites can improve the catalytic activity.2#AC activated carbon had highest activity and best stability because of high specific surface area,oxygen content and defec sites.
作者
代元元
赵长森
牛强
Dai Yuanyuan;Zhao Changsen;Niu Qiang(Erdos Electric Power and Metallurgy Group Co.,Ltd.,Ordos 016064,Inner Mongolia,China;Ordos Hanbo Technology Co.,Ltd.,Ordos 016064,Inner Mongolia,China)
出处
《工业催化》
CAS
2022年第9期44-49,共6页
Industrial Catalysis
基金
“科技兴蒙”行动重点专项项目(2021EEDSCXSFQZD006)
内蒙古自治区科技计划项目(2021GG0350)。
关键词
催化剂工程
乙炔氢氯化
活性炭
比表面积
钌基催化剂
catalyst engineering
acetylene hydrochlorination
activated carbon
specific surface area
ruthenium-based catalyst
