Superior activity of non-interacting close acidic protons in Al-rich Pt/H-^*BEA zeolite in isomerization of n-hexane

详细信息    查看全文

• 作者：Petr Sazama^a ; ^{petr.sazama@jh-inst.cas.cz} ; Dalibor Kaucky^a ; Jaroslava Moravkova^a ; Radim Pilar^a ; Petr Klein^a ; Jana Pastvova^a ; ^b ; Edyta Tabor^a ; Stepan Sklenak^a ; Ivo Jakubec^c ; Lukasz Mokrzycki^a
• 关键词：Isomerization ; Alkanes ; Hexane ; Zeolites ; Al-rich beta (*BEA) ; Mordenite
• 刊名：Applied Catalysis A: General
• 出版年：2017
• 出版时间：5 March 2017
• 年：2017
• 卷：533
• 期：Complete
• 页码：28-37
• 全文大小：2236 K
• 卷排序：533

文摘

Effect of proximity of strongly acidic centerson the hydroisomerization of n-hexane over zeolite catalysts was examined. High density of non-interacting but close and strongly acidic hydroxyls significantly lowersthe activation barrier. The unique high density of strongly acidic protonic sites is available in the Al-rich Pt/H-*BEA zeolite(Si/Al 4.2). Isomerizationactivity of the Al-rich Pt/H-*BEA zeolite highly exceeds that of state-of-the-art Si-rich zeolites.