Acta Phys. -Chim. Sin. ›› 1997, Vol. 13 ›› Issue (06): 573-576.doi: 10.3866/PKU.WHXB19970618

• Note • Previous Articles    

The Influence of Fe on the Aromatization Reactivity and Sulphur-resistance of Pt/KL Zeolite

Zheng Jian,Dong Jia-Lu,Xu Qin-Hua   

  1. Department of Chemistry,Nanjing University,Nanjing 210093
  • Received:1996-07-08 Revised:1997-03-05 Published:1997-06-15
  • Contact: Xu Qin-Hua

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Abstract:

The influence of second metal component (Fe) on Pt/KL zeolie catalyst was investigated. The catalytic properties of Pt-Fe/KL zeolite varied as the amount of Fe. When the amount of Fe was 0.3 % (mass fraction), the catalyst was found to show both excellent n-hexane aromatization reactivity and higher ability for sulphur-resistance. The dispersion of Pt particles was also found to be better in this bimetallic catalyst, whereas the electron state of Pt particles as indicated by CO-FTIR was modified to be more electron-deficient than that of Pt/KL zeolite, which made the bimetallic Pt-Fe/KL more tolerant to sulphur poisoning.

Key words: Pt-Fe bimetallic supported catalyst, KL zeolite, n-hexane aromatization, Sulphur-resistance