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作 者:赵进 张坤柔 史琪 宋杨杨 解则安 赵震 Zhao Jin;Zhang Kunrou;Shi Qi;Song Yangyang;Xie Zean;Zhao Zhen(Institute of Energy and Environmental Catalysis,School of Chemistry and Chemical Engineering,Shenyang Normal University,Shenyang 110034,Liaoning,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China)
机构地区:[1]沈阳师范大学化学化工学院,能源与环境催化研究所,辽宁沈阳110034 [2]中国石油大学(北京),重质油国家实验室,北京102249
出 处:《工业催化》2023年第8期10-16,共7页Industrial Catalysis
基 金:国家自然科学基金(22002094,92145301,22102107)。
摘 要:主要阐述近年来负载型VO_(x)、ZnO_(x)和GaO_(x)催化剂在丙烷脱氢反应中的研究进展。在高温(500~650)℃和还原性气氛(丙烷及其衍生物)反应条件下,负载的VO_(x)、ZnO_(x)和GaO_(x)金属氧化物活性位通常被部分还原,生成不饱和配位的金属阳离子作为丙烷脱氢活性位。系统总结上述各氧化物催化剂的活性位的分散度、载体种类、制备方法、酸碱性等对丙烷C-H活化、丙烯选择性和稳定性的影响,为进一步设计高效的负载型氧化物丙烷脱氢催化剂奠定一定的基础。In this paper,the research progress on supported VO_(x),ZnO_(x)and GaO_(x)catalysts for propane dehydrogenation in recent years is reviewed.Under the reaction conditions of high temperature(500-650)℃and reducing atmosphere(propane and its derivatives),the active sites of supported VO_(x),ZnO_(x)and GaO_(x)metal oxides are usually partially reduced,and the generated metal cations with unsaturated coordination are typically the active sites of dehydrogenation reaction.The effects of the dispersion of active sites various oxides,carriers,preparation methods,acidity and alkalinity on the C-H activation of propane,propylene selectivity and catalyst stability were systematically summarized,which laid a certain foundation for the further design of efficient supported oxide catalysts for propane dehydrogenation.
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