Hydroconversion of n-octane over nanoscale HZSM-5 zeolites promoted by 12-molybdophosphoric acid and Ni

被引：16

作者：

Chen, Lidong ^{[1
]}

Wang, Xiangsheng ^{[1
]}

Guo, Hongchen ^{[1
]}

Guo, Xinwen ^{[1
]}

Wang, Yanan ^{[1
]}

Liu, Hai'ou ^{[1
]}

Li, Guimin ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Dept Catalysis Chem & Engn, Dalian 116012, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 03期

关键词：

12-molybdophosphoric acid; nanoscale HZSM-5 zeolites; hydroconversion; n-octane; aromatization;

D O I：

10.1016/j.catcom.2006.06.034

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：

12-Molybdophosphoric acid (PMo), Ni and Ni-PMo loaded on nanoscale HZSM-5 zeolites were prepared and characterized by BET, IR, XRD, Py-IR, NH3-TPD, TG and SEM. The hydroconversion of n-octane over various catalysts was investigated in order to obtain light isomers alkanes and aromatics products with high-octane-number. The acid amounts of the catalysts were modified after the loading of PMo and Ni, and its relation to the activity of the reaction was discussed. It is concluded that the stability of aromatization is improved, and the yield of light iso-alkanes is enhanced due to the introduction of PMo and Ni. The improved activity of n-octane hydroconversion over PMo and Ni loaded nanoscale HZSM-5 zeolites could be attributed to the increase of the acid amounts and the synergetic effect between Bronsted and Lewis acid sites. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：416 / 423

页数：8

共 31 条

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