Influence of Alumina Content on Catalytic Performance of PtSn/Al2O3/SBA-15 Catalysts for Propane Dehydrogenation

被引：0
|
作者：
Zhang Peixin [1 ,2 ]
Zhou Yuming [1 ]
Duan Yongzheng [1 ]
Zhang Yiwei [1 ]
Sheng Xiaoli [1 ]
机构：
[1] School of Chemistry and Chemical Engineering,Southeast University
[2] Geological Survey of Jiangsu Province
来源：
China Petroleum Processing & Petrochemical Technology | 2012年 / 14卷 / 04期
基金：
高等学校博士学科点专项科研基金;
关键词：
SBA-15; Al2O3; propane dehydrogenation; propene; Pt;
D O I：
暂无
中图分类号：
O643.32 [催化反应];
学科分类号：
081705 ;
摘要：
The alumina-modified SBA-15 (Al2O3/SBA-15) zeolite was prepared in a non-aqueous system by using toluene as the solvent, and was used to support the PtSn-based catalyst for propane dehydrogenation. The BET surface area measurements, hydrogen chemisorption, FT-IR spectroscopy, NH3-TPD, XPS and TPO techniques were used to characterize the catalysts. Test results showed that the addition of alumina not only could modify the acid function of the support but also the structure of the metallic phase, thus affecting their catalytic properties. Among these catalysts studied, the PtSn/Al2O3 (5%)/SBA-15 catalyst exhibited a best catalytic performance in terms of propane conversion and selectivity to propene. The high catalytic performance might be attributed to the relatively good Pt metal dispersion and/or the strong interaction between Pt and Sn species.
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页码：9 / 16
页数：8
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