Production of ethanol by vapor phase hydration of ethene over tungsta monolayer catalyst loaded on titania

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• 作者：Naonobu Katada ; Yohei Iseki ; Akira Shichi ; Nobuo Fujita ; Iwao Ishino ; Kazuhiro Osaki ; Tatsuya Torikai ; Miki Niwa
• 关键词：Ethanol production ; Hydration of ethylene ; Tungsta monolayer loaded on titania ; Solid acid catalyst
• 刊名：Applied Catalysis A: General
• 出版年：2008
• 出版时间：31 October 2008
• 年：2008
• 卷：349
• 期：1-2
• 页码：55-61
• 全文大小：789 K

文摘

High catalytic activity and selectivity for vapor phase hydration of ethene (ethylene) into ethanol under practical conditions were observed on a tungsta monolayer loaded on titania. Brønsted acidity generated on the monolayer is suggested to be the origin of such activity. The activity and the selectivity to desired product of tungsta monolayer loaded on titania were comparable to those of a silica-impregnated phosphoric acid catalyst, which has been utilized for a conventional process but has disadvantages from a view of environmental protection. The selectivity was higher than that of a WO₃–TiO₂ mixed oxide, possibly due to the co-presence of Brønsted and Lewis acid sites.