添加Fe对Pt/KL沸石芳构化及抗硫性能的影响  

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

作　　者：郑坚[1] 董家禄[1] 须沁华[1] 

机构地区：[1]南京大学化学化工学院,南京210093

出　　处：《物理化学学报》1997年第6期573-576,共4页Acta Physico-Chimica Sinica

摘　　要：The influence of second metal component (Fc) on Pt/KL zeolie catalyst was investi-gated. 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 aromati-zation 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 nlodified to be more electron-deficient than that of Pt/KL zeolite, which made the bimetallic Pt-Fe/KL more tolerant to sulphur poisoning.The influence of second metal component (Fc) on Pt/KL zeolie catalyst was investi-gated. 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 aromati-zation 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 nlodified to be more electron-deficient than that of Pt/KL zeolite, which made the bimetallic Pt-Fe/KL more tolerant to sulphur poisoning.

关 键 词：KL沸石 正己烷 芳构化 铂 铁 双金属 催化剂 

分 类 号：O643.36[理学—物理化学] O623.11[理学—化学]