石油化工2026，Vol.55Issue(5)：653-659,7.DOI:10.3969/j.issn.1000-8144.2026.05.001
Fe2O3/LaFe(Ni)O3载氧体在乙烷化学链氧化脱氢制乙烯中的应用
Application of Fe2O3/LaFe(Ni)O3 as oxygen carriers in chemical looping oxidative dehydrogenation of ethane to ethylene
李昕梦 1梁皓 1陈俊杰 1崔爽1
作者信息
- 1. 沈阳理工大学 环境与化学工程学院,辽宁 沈阳 110159
- 折叠
摘要
Abstract
Chemical looping oxidative dehydrogenation(CL-ODH)of ethane to ethylene is a new route for converting ethane into high-value-added products.Two perovskite-type oxides Fe2O3/LaFeO3 and Fe2O3/LaNiO3 were prepared using the citric acid complexation method and impregnation method.Their physical and chemical properties were characterized by N2 adsorption-desorption,XRD,SEM,XPS,Raman,H2-TPR,and O2-TPD,and their catalytic activity in CL-ODH of ethane to ethylene was investigated.The results show that both Fe2O3/LaFeO3 and Fe2O3/LaNiO3 maintain the perovskite crystal structure.Fe2O3 has better dispersion on LaFeO3,and Fe2O3/LaFeO3 has higher lattice oxygen content than Fe2O3/LaNiO3.Under the conditions of 650℃,0.1 MPa,and space velocity of 15 000 mL/(g·h),Fe2O3/LaFeO3 exhibits a higher catalytic activity than Fe2O3/LaNiO3,achieving ethane conversion reaching up to 93%and ethylene selectivity of 53%.After 10 oxidation-reduction cycles,Fe2O3/LaFeO3 still maintains excellent oxygen absorption and release capabilities,which makes it an excellent oxygen carrier for CL-ODH of ethane to ethylene.关键词
乙烷氧化脱氢/化学链/乙烯/载氧体/钙钛矿型氧化物Key words
ethane oxidative dehydrogenation/chemical looping/ethylene/oxygen carrier/perovskite-type oxide分类
化学化工引用本文复制引用
李昕梦,梁皓,陈俊杰,崔爽..Fe2O3/LaFe(Ni)O3载氧体在乙烷化学链氧化脱氢制乙烯中的应用[J].石油化工,2026,55(5):653-659,7.
