Hydrodesulfurization of dibenzothiophene and hydrogenation of phenanthrene on alumina-supported Pt and Pd catalysts

被引：68
|
作者：
Qian, WH [1 ]
Yoda, Y [1 ]
Hirai, Y [1 ]
Ishihara, A [1 ]
Kabe, T [1 ]
机构：
[1] Tokyo Univ Agr & Technol, Dept Appl Chem, Tokyo 1848588, Japan
来源：
APPLIED CATALYSIS A-GENERAL | 1999年 / 184卷 / 01期
关键词：
alumina-supported nobel metal catalysts; hydrodesulfurization of dibenzothiophene; hydrogenation of phenanthrene;
D O I：
10.1016/S0926-860X(99)00083-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydrodesulfurization (HDS) reactions of dibenzothiophene (DBT) and hydrogenation (HYD) of phenanthrene (PHE) were carried out over several alumina-supported noble metal catalysts at temperatures between 200 degrees C and 400 degrees C and under 50 kg/ cm(2) pressure. A dual noble metal catalyst, Pt(2)-Pd(10), showed similar HDS results and better HYD promotion compared with a conventional Co-Mo catalyst. Further, S-35 radioisotope tracer method showed that almost no labile sulfur was accumulated on Pt/Al2O3 catalyst in the HDS of DBT or HYD of PHE, although this catalyst showed an HDS activity comparable to that of the Go-Mo catalyst. This indicated that the mechanism of DBT HDS on noble catalysts was different from that on the conventional Mo-based catalyst. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：81 / 88
页数：8
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