乙苯脱氢催化剂的开发  被引量:10

Development of Catalysts for Ethylbenzene Dehydrogenation

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作  者:祝以湘[1] 宋建华[1] 

机构地区:[1]厦门大学化工系厦门大学物理化学研究所

出  处:《石油化工》1998年第3期204-208,共5页Petrochemical Technology

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 XHseries catalysts are mainly used for the dehydrogenation of ethylbenzene to styreneUp to now,there are five industrial catalysts named after XHThe main active component of the XHseries catalysts is iron oxide,and potassium and cerium oxides are the main promotorsIt 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 KFeO2 might be the active phase of these catalystsThe nature of Ce promotion is suggested as a donor of lattice oxygen to the KFeO2 active phase

关 键 词:催化剂 乙苯脱氢 助催化剂 

分 类 号:TQ426.98[化学工程]

 

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