FeCo/Hβ分子筛催化N2O低温分解的性能研究
Study on performance of FeCo/Hβ molecular sieves in catalyzing N2O decomposition at low temperature
艾鑫 1宋永吉 1李翠清 1王虹 1王新承1
作者信息
- 1. 北京石油化工学院新材料与化工学院,燃料清洁化及高效催化减排技术北京市重点实验室,北京 102617
- 折叠
摘要
以过渡金属、稀土金属、碱土金属、主族金属等为活性组分,REY、USY、ZSM-5、Hβ、4A、NaX、NaY以及SAPO-34 等分子筛为载体,采用等体积浸渍法制备了负载型低温脱硝催化剂.通过XRD、BET、H2-TPR等对催化剂理化性质进行表征,探究了其催化N2O直接低温分解的性能.结果表明,负载Fe-Co双组分的Hβ分子筛催化性能最佳,相应负载量分别为 12％和6％,最佳焙烧温度为430℃.Fe12 Co6/Hβ具有较高的活性、热稳定性及良好的工业应用前景.
Abstract
A supported low-temperature denitration catalyst is prepared through the incipient impregnation method,with transition metals,rare earth metals,alkaline earth metals and main group metals respectively as active components,and molecular sieves such as REY,USY,ZSM-5,4A,Hβ,NaX,NaY and SAPO-34 as carriers,respectively.The physical and chemical properties of the prepared catalysts are characterized by means of XRD,BET and H2-TPR,and their catalytic performance for direct N2O decomposition at low-temperature is also explored.Results show that Hβ molecular sieves loaded with Fe-Co as active components exhibit the best catalytic performance.The corresponding loading amount of Fe and Co is 12％and 6％,respectively.The optimum calcination temperature is 430℃.Fe12 Co6/Hβ catalyst possesses high activity and thermal stability,implying a good industrial application prospect.
关键词
氧化亚氮/直接催化分解/Hβ分子筛/Fe-Co双组分Key words
nitrous oxide/direct catalytic decomposition/Hβ molecular sieves/Fe-Co bi-component引用本文复制引用
基金项目
北京市属高等学校优秀青年人才培育计划项目(BPHR202203092)
国家自然科学基金项目(21908009)
国家自然科学基金项目(20476012)
国家自然科学基金项目(21076025)
出版年
2024
NETL
NSTL
万方数据