Preparation of Highly Active Alumina-Pillared Clay Montmorillonite-Supported Platinum Catalyst for Hydrodesulfurization

被引：13
|
作者：
Kanda, Yasuharu [1 ]
Iwamoto, Hiroyuki [1 ]
Kobayashi, Takao [1 ]
Uemichi, Yoshio [1 ]
Sugioka, Masatoshi [1 ]
机构：
[1] Muroran Inst Technol, Dept Appl Chem, Muroran, Hokkaido 0508585, Japan
来源：
TOPICS IN CATALYSIS | 2009年 / 52卷 / 6-7期
关键词：
Hydrodesulfurization; Supported Pt catalyst; Alumina-pillared clay montmorillonite; Pt precursor; Pretreatment effect; SULFUR TOLERANCE; THIOPHENE; HYDROGENATION; PD; PERFORMANCE; LEVEL;
D O I：
10.1007/s11244-009-9204-6
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Effect of Pt precursor and pretreatment on hydrodesulfurization (HDS) activity of Pt/Al-PILM catalyst was examined to prepare highly active Pt-supported HDS catalyst. The order of HDS activities of Pt/alumina-pillared clay montmorillonite (Al-PILM) catalysts prepared by various Pt precursors was Pt(C5H7O2)(2) > H2PtCl6 center dot A 6H(2)O > [Pt(NH3)(4)](NO3)(2) > [Pt(NH3)(4)]Cl-2 center dot A H2O > H2Pt(OH)(6). This order was in accordance with that of Pt dispersion. Thus, high Pt dispersion is essential factor to prepare highly active Pt/Al-PILM catalyst for HDS reaction. On the other hand, the effect of pretreatment on the HDS activities of Pt/Al-PILM catalysts prepared by various Pt precursors was also evaluated. The UC-TPS Pt/Al-PILM catalyst showed the highest HDS activity among various pretreated Pt/Al-PILM catalysts, in which uncalcined catalyst was sulfided by temperature programmed sulfidation (TPS). We assumed that high HDS activity of UC-TPS Pt/Al-PILM catalyst is caused by partly sulfided Pt particle with high dispersion. It is concluded that the highly active Pt/Al-PILM catalyst for the HDS reaction could be prepared by using Pt(C5H7O2)(2) as a precursor and UC-TPS treatment.
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收藏
页码：765 / 771
页数：7
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