石油化工2026，Vol.55Issue(1)：1-5,5.DOI:10.3969/j.issn.1000-8144.2026.01.001
FeKCe复合氧化物乙苯脱氢催化剂中CeO2的促进作用
Promoting effects of ceric oxide in FeKCe composite oxide catalysts on ethylbenzene dehydrogenation
曾铁强 1查凯文 1王晨宇 1朱敏 1宋磊 1缪长喜1
作者信息
- 1. 中石化(上海)石油化工研究院有限公司,上海 201208
- 折叠
摘要
Abstract
The FeK and FeKCe composite oxide catalysts were prepared by wet granulation method.The promoting effects of CeO2 on ethylbenzene dehydrogenation were systematically investigated using in situ characterization techniques such as XRD,FTIR,and Raman spectroscopy.The experiment results reveal that the introduction of CeO2 substantially improves the ethylbenzene dehydrogenation activity of the catalyst but diminishes the selectivity for styrene formation.CeO2 not only suppresses potassium migration and facilitates the formation of the KFeO2 active phase,but also significantly promotes the ethylbenzene dehydrogenation reaction,and greatly shortens the induction period of the FeKCe catalyst.The main adsorbed surface species on the catalyst in the reaction is produced styrene.CeO2 modification promotes styrene generation in the presence of the FeKCe catalyst.关键词
乙苯/脱氢/苯乙烯/氧化铈/原位表征Key words
ethylbenzene/dehydrogenation/styrene/ceric oxide/in situ characterization分类
化学化工引用本文复制引用
曾铁强,查凯文,王晨宇,朱敏,宋磊,缪长喜..FeKCe复合氧化物乙苯脱氢催化剂中CeO2的促进作用[J].石油化工,2026,55(1):1-5,5.
