Influence of Alumina Content on Catalytic Performance of PtSn/AI2OJSBA-15 Catalysts for Propane Dehydrogenation

Influence of Alumina Content on Catalytic Performance of PtSn/AI2OJSBA-15 Catalysts for Propane Dehydrogenation

The alumina-modified SBA-15 （A12OJSBA-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 mea- surements, hydrogen chemisorption, FT-IR spectroscopy, NH3-TPD, XPS and TPO t...

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Veröffentlicht in:中国炼油与石油化工：英文版 2012, Vol.14 (4), p.9-16
1. Verfasser: Zhang Peixin Zhou Yuming Duan Yongzheng Zhang Yiwei Sheng Xiaoi
Format: Artikel
Sprache:eng
Schlagworte:
BET比表面积
FT-IR光谱
SBA-15
丙烷脱氢
催化性能
氧化铝
脱氢催化剂
铝含量
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creator Zhang Peixin Zhou Yuming Duan Yongzheng Zhang Yiwei Sheng Xiaoi
description The alumina-modified SBA-15 （A12OJSBA-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 mea- surements, 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/AI203 （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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subjects BET比表面积
FT-IR光谱
SBA-15
丙烷脱氢
催化性能
氧化铝
脱氢催化剂
铝含量
title Influence of Alumina Content on Catalytic Performance of PtSn/AI2OJSBA-15 Catalysts for Propane Dehydrogenation
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