Hydroisomerization of n-heptane over superacid catalysts supported on ultra stable Y (USY) zeolite

被引：0
|
作者：
Wei, RP [1 ]
Wang, J [1 ]
Ren, XQ [1 ]
Jiang, DM [1 ]
机构：
[1] Nanjing Univ Technol, Coll Chem & Chem Engn, Nanjing 210009, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2004年 / 20卷 / 12期
关键词：
hydroisomerization; solid superacid; n-heptane; USY;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The Pt-bearing SO42-/ZrO2 superacid catalysts supported on ultra stable Y (USY) zeolite we re prepared by impregnation and characterized by X-ray diffraction, nitrogen adsorption and Hammett indicators. Their catalytic activities were evaluated in the hydroisomerization of n-heptane with an atmospheric fixed-bed reactor. The catalysts possessed a high surface area, superacidity and well maintained pore structure of USY support. The supported catalysts with a suitable SO42-/ZrO2 loading exhibited a higher catalytic activity and selectivity than the unsupported SO42-/ZrO2 catalyst or the Pt supported on USY catalyst without superacid. At the reaction temperature of 220 degreesC, over the catalyst with a Pt loading of 0.8wt% and ZrO2 loading of 10wt%, the conversion of n-heptane could be as high as 35.2% with a selectivity of 87.9% for isomerization products.
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页码：1471 / 1476
页数：6
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