摘要
ＸＨ系列催化剂主要用于乙苯脱氢制苯乙烯。该系列催化剂用氧化铁为主要活性组份，以钾和铈为主要助催化剂，并含有其它添加剂，至今已有五种牌号相继投放市场。针对ＸＨ系列催化剂开展了基础性研究，探讨催化剂的活性相、助剂的作用及晶格氧参与脱氢反应的机理。
he XHseries catalysts are mainly used for the dehydrogenation of ethylbenzene to styreneUp to now,there are five industrial catalysts named after XHThe main active component of the XHseries catalysts is iron oxide,and potassium and cerium oxides are the main promotorsIt can be shown by investigating the interaction between potassium promotor and iron oxide,and the relationship between catalytic activity and potassium amount carried on the surface of a model catalyst,that KFeO2 might be the active phase of these catalystsThe nature of Ce promotion is suggested as a donor of lattice oxygen to the KFeO2 active phase
出处
《石油化工》
EI
CAS
CSCD
北大核心
1998年第3期204-208,共5页
Petrochemical Technology
关键词
催化剂
乙苯脱氢
助催化剂
dehydrogenation,iron oxide catalyst,styrene,ethylbenzene
