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

作者：Kanda Yasuharu^*; Iwamoto Hiroyuki; Kobayashi Takao; Uemichi Yoshio; Sugioka Masatoshi

来源：Topics in Catalysis, 2009, 52(6-7): 765-771.

DOI：10.1007/s11244-009-9204-6

• Hydrodesulfurization
• Supported Pt catalyst
• Alumina-pillared clay montmorillonite
• Pt precursor
• Pretreatment effect

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.

• 出版日期2009-6