Influence of Ge content on the activity of Ru-Ge-B/Al₂O₃ catalysts for selective hydrogenation of methyl oleate to oleyl alcohol

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• 作者：Mar¨ªa A. S¨¢nchez ; Vanina A. Mazzieri ; Marcelo Oportus ; Patricio Reyes ; Carlos L. Pieck
• 关键词：Selective hydrogenation ; Methyl oleate ; Oleyl alcohol ; Ru&ndash ; Ge&ndash ; B/Al2O3
• 刊名：Catalysis Today
• 出版年：2013
• 出版时间：15 September, 2013
• 年：2013
• 卷：213
• 期：Complete
• 页码：81-86
• 全文大小：1054 K

文摘

The influence of Ge content on the activity and selectivity of Ru-Ge-B/Al₂O₃ catalysts for the hydrogenation of methyl oleate to oleyl alcohol was studied. The results of catalyst characterization by TPR and XPS show that Ge is deposited on both the metal function aggregates and on the support surface. The fraction of Ge deposited on the metal function is in strong interaction with Ru, so that its metallic activity is significantly modified. Both dehydrogenating and hydrogenolytic activities of Ru are strongly diminished by Ge addition. The Ge/Ru = 2 is the optimum ratio for oleyl alcohol production.