Catalytic reforming of n-heptane over Pt/Al-HMS catalysts

被引:38
|
作者
Hamoule, T. [1 ]
Peyrovi, M. H. [1 ]
Rashidzadeh, M. [2 ]
Toosi, M. R. [3 ]
机构
[1] Shahid Beheshti Univ, Fac Sci, Dept Chem, Tehran 1983963113, Iran
[2] RIPI, Tehran 1485733111, Iran
[3] Islamic Azad Univ, Dept Chem, Qaemshahr Branch, Qaemshahr, Iran
关键词
Al-HMS; Pt catalyst; Catalytic reforming; n-Heptane; MOLECULAR-SIEVES; SURFACE-STRUCTURE; ACID PROPERTIES; PT-SN; HYDROISOMERIZATION; ALKANES; METAL; HYDROCARBON; PLATINUM; CRACKING;
D O I
10.1016/j.catcom.2011.09.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Pt catalysts supported on Al-HMS materials were prepared and characterized by XRD, NH(3)-TPD, TGA and pyridine-adsorbed FTIR techniques. Catalytic performance of samples was investigated for reforming of nheptane and compared as a function of Al content. TPD measurements showed that the acidity of Al-HMS materials enhanced with the increasing Al content. Results showed that the ratio of Bransted/Lewis acidic sites decreased with the increasing Al content. The catalytic evaluation revealed that Pt/Al-HMS catalysts had a high activity for conversion of n-heptane. The distribution of products was described based on the nature of the acidic sites. (C) 2011 Elsevier B.V. All rights reserved.
引用
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页码:234 / 239
页数:6
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