Dehydrogenation of isobutane over Sn/Pt/Na-ZSM-5 catalysts: The effect of SiO2/Al2O3 ratio, amount and distribution of Pt nanoparticles on the catalytic behavior

被引：0
作者：
Sedigheh Vaezifar
Hossein Faghihian
Mahdi Kamali
机构：
[1] Isfahan University of Technology,Biomaterials Group, Department of Materials Engineering
[2] University of Isfahan,Chemical Processes Research Department, Engineering Research Center
[3] Islamic Azad University,Department of Chemistry
[4] Shahreza Branch,Faculty of Advanced Sciences & Technologies
[5] University of Isfahan,Fadak Chemical Company
[6] Isfahan Science & Technology Town (ISTT),undefined
来源：
Korean Journal of Chemical Engineering | 2011年 / 28卷
关键词：
Na-ZSM-5; SiO; /Al; O; Ratio; Bimetallic Catalysts; Pt/Sn Nanoparticles; Dehydrogenation of Isobutane;
D O I：
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中图分类号：
学科分类号：
摘要：
Sn/Pt/Na-ZSM-5 was used as catalyst for the dehydrogenation of isobutane, and the effect of SiO2/Al2O3 ratio and the dispersion of Pt nanoparticles on the conversion and product selectivity were studied under atmospheric pressure at 848 K. The catalysts were characterized by various techniques such as H2 chemisorption, TEM, SEM, EDX, XRD, FT-IR, TG/DTG, elemental analysis by XRF and ICP techniques. Higher dispersion of Pt nanoparticles in the catalyst with SiO2/Al2O3 ratio of 40 resulted in higher selectivity for isobutene.
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页码：370 / 377
页数：7
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