USY supported Pt-bearing SO42-/ZrO2 catalysts promoted by Cr for hydroisomerization of n-heptane

被引：6
|
作者：
Wei, Ruiping [1 ]
Wang, Jun [1 ]
Gu, Yanbo [1 ]
机构：
[1] Natl Univ Technol, Key Lab Mat Oriented Chem Engn, Minist Educ, Coll Chem & Chem Engn, Nanjing 210009, Peoples R China
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2007年 / 90卷 / 02期
基金：
中国国家自然科学基金;
关键词：
hydroisomerization of n-heptane; SO42-/ZrO2; USY; chromium;
D O I：
10.1007/s11144-007-5034-3
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：
The Pt-bearing SO42-/ZrO2 catalysts doped with Cr and supported on USY zeolite were prepared by impregnation, and characterized by XRD and IR spectroscopy of pyridine adsorption. Their catalytic activities were evaluated in the hydroisomerization of n-heptane with a fixed-bed atmospheric reactor. The Cr-promoted catalysts exhibited much higher catalytic activity and selectivity for isomerization products than the catalysts without the Cr dopant. Both the conversion and selectivity were discussed in relation with the physicochemical properties of catalysts.
引用
收藏
页码：315 / 322
页数：8
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