燃料化学学报（中英文）2024，Vol.52Issue(1)：55-64,10.DOI:10.1016/S1872-5813(23)60381-0
铈改性CuMn/Al2O3/堇青石整体催化剂的甲苯催化燃烧性能研究
Catalytic combustion of toluene over cerium modified CuMn/Al2O3/cordierite monolithic catalyst
代宇航 1李凯歌 1赵金仙 1任军 1权燕红1
作者信息
- 1. 太原理工大学 省部共建煤基能源清洁高效利用国家重点实验室,山西太原 030024||太原理工大学 化学工程与技术学院,山西太原 030024
- 折叠
摘要
Abstract
Catalytic combustion is an effective approach to remove volatile organic compounds,in which the development of highly active and durable catalyst is extremely crucial.Herein,a series of CuMnCex/Al2O3/cordierite monolithic catalysts were synthesized by using the ultrasonic-assisted impregnation method.The physicochemical properties were comprehensively characterized via the BET,XRD,SEM,EDX,H2-TPR,O2-TPD,XPS and EPR techniques.The results showed that the catalytic activity of CuMnCex/Al2O3/Cor for toluene combustion was strongly affected by the Ce content.The CuMnCe2/Al2O3/Cor monolithic catalyst showed the best catalytic activity with toluene conversion of 90％at 263 ℃ under toluene concentration of 1 g/L and space velocity of 78000 mL/(g·h).Meanwhile,the well-dispersed CeO2 in the CuMn matrix not only improved the content of oxygen vacancies and the mobility of oxygen species,but also enhanced the low-temperature reducibility of the catalyst.Moreover,the CuMnCe2/Al2O3/Cor monolithic catalyst exhibited an excellent stability in the long-term test and cycle ability test.关键词
甲苯/催化燃烧/整体式催化剂/CuMnCex复合氧化物Key words
toluene/catalytic combustion/monolithic catalyst/CuMnCex composite oxide分类
化学化工引用本文复制引用
代宇航,李凯歌,赵金仙,任军,权燕红..铈改性CuMn/Al2O3/堇青石整体催化剂的甲苯催化燃烧性能研究[J].燃料化学学报（中英文）,2024,52(1):55-64,10.
