Comparison between Ni and Pt promoted SO42−–ZrO2 catalysts for n-octane hydroisomerization-cracking

被引：0
|
作者：
J.C. Yori
J.M. Grau
V.M. Benítez
C.R. Vera
C.L. Pieck
J.M. Parera
机构：
[1] INCAPE (FIQ-UNL,Instituto de Investigaciones en Catálisis y Petroquímica
[2] CONICET),undefined
来源：
Catalysis Letters | 2005年 / 100卷
关键词：
sulfated zirconia; hydroisomerization; hydrocracking; -octane;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The production of C4–C6 branched isoalkanes by isomerization-cracking of n-octane (300 °C, 0.1 MPa) using sulfated zirconia catalysts was studied. The effect of Ni addition on the activity and selectivity was compared to the effect of Pt. Pt enhanced the activity and stability of the catalysts. Ni mainly improved the selectivity to isoparaffins (maximum yield at 1% Ni). n-Octane conversion fully correlated with total acidity. Average and final stable conversion values were in comparison lower for Ni catalysts. This result was addressed to the lower metal activity of Ni and to the detrimental effect of sulfated zirconia on the reducibility of the metal.
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页码：67 / 71
页数：4
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