乙苯脱氢催化剂的开发 |
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引用本文: | 祝以湘,宋建华. 乙苯脱氢催化剂的开发[J]. 石油化工, 1998, 0(3) |
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作者姓名: | 祝以湘 宋建华 |
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作者单位: | 厦门大学化工系厦门大学物理化学研究所 |
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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。
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关 键 词: | 催化剂 催化脱氢 苯乙烯 乙苯 |
Development of Catalysts for Ethylbenzene Dehydrogenation |
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Abstract: | he XH series 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 XH series 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 |
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Keywords: | dehydrogenation iron oxide catalyst styrene ethylbenzene |
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