High surface area MoO$\_\{3\}$/MgO: preparation by the new slurry impregnation method and activity in sulphided state in hydrodesulphurization of benzothiophene

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• 作者：T. Klicpera and M. Zdra?il
• 关键词：MoO3/MgO catalyst ; hydrodesulphurization ; slurry impregnation ; benzothiophene
• 刊名：Catalysis Letters
• 出版年：1999
• 出版时间：1999
• 年：1999
• 卷：58
• 期：1
• 页码：47-51
• 全文大小：KB

文摘

High surface area MoO₂/MgO was prepared by the reaction of MgO (250–300 m2 g−1) with a slurry of ammonium heptamolybdate in methanol or anhydrous ethanol at the alcohol boiling point. The low solubility of ammonium heptamolybdate was sufficient for its gradual transport to the support surface: molybdena species were deposited and ammonia was evolved. Catalytic activities in the hydrodesulphurization of benzothiophene of the MoO₃/MgO samples were comparable to the activity of the reference commercial MoO₃/Al₂O₃ catalyst.