Influence of alumina binder content on catalytic properties of PtSnNa/AlSBA-15 catalysts

被引：20

作者：

Duan, Yongzheng ^{[1
]}

Zhou, Yuming ^{[1
]}

Sheng, Xiaoli ^{[1
]}

Zhang, Yiwei ^{[1
]}

Zhou, Shijian ^{[1
]}

Zhang, Zewu ^{[1
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2012年 / 161卷

基金：

高等学校博士学科点专项科研基金;

关键词：

AlSBA-15; Propane dehydrogenation; Binder; Pt; PROPANE DEHYDROGENATION; PLATINUM CATALYSTS; PTSNNA/ZSM-5; CATALYST; MESOPOROUS SILICA; MOLECULAR-SIEVES; GAMMA-ALUMINA; N-BUTANE; PERFORMANCE; NMR; TIN;

D O I：

10.1016/j.micromeso.2012.05.016

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The influence of the amount of alumina binder on the catalytic properties of PtSnNa/AlSBA-15 catalysts for propane dehydrogenation was investigated. BET surface area measurement, catalyst particle mechanical strength, solid-state Al-27 MAS NMR spectroscopy, hydrogen chemisorption, NH3-TPD and XPS were used to characterize the catalysts. It can be observed that the mechanical strength of the agglomerated catalyst was higher than that of the nonagglomerated one. Among these catalysts studied, the PtSnNa/AISBA-15 catalyst bound with 20 wt.% alumina binder showed the best catalytic performance in terms of propane conversion and selectivity to propene. The high catalytic performance may be due to relatively good Pt metal dispersion and/or the strong interaction between Pt and Sn, which were attributed to an increase in Al(IV) and Al(VI) species for the agglomerated catalyst. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：33 / 39

页数：7

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