Hydrogenation of Tetralin over Ir-Containing Mesoporous Catalysts

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• 作者：Ver贸nica A. Vall茅s ; Gerardo S. Balangero Bottazzi ; Mar铆a L. Mart铆nez ; Marcos B. G贸mez Costa ; Oscar A. Anunziata ; Andrea R. Beltramone
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2012
• 出版时间：May 30, 2012
• 年：2012
• 卷：51
• 期：21
• 页码：7185-7195
• 全文大小：401K
• 年卷期：v.51,no.21(May 30, 2012)
• ISSN：1520-5045

文摘

A new series of catalysts based on noble metals have been prepared with the main aim of obtaining thiotolerant catalysts to be used in second-stage processes of mild hydrotreating. We studied the catalytic properties of 1 wt % Ir-containing mesoporous materials in the hydrogenation of tetralin to decalin, in the presence of 100 ppm of dibenzotiophene at 250 掳C and 15 atm pressure of hydrogen, using a Parr reactor. Ir/mesoporous materials were prepared by wetness impregnation, using iridium acetylacetonate as the source of Ir. The Ir/SBA-3 catalyst synthesized by us had a high activity in tetralin hydrogenation under mild conditions. The experimental data were quantitatively represented by a modified Langmuir鈥揌inshelwood-type rate equation. The preliminary results reveal that these materials are promising catalyts for HDS/HDN reactions.