TITLE:
γ-Al2O3 Supported SO42-/ZrO2 Solid Superacid Catalysts for n-Pentane Isomerization
AUTHORS:
Li Zhao, Xiaoshuang Cheng, Ye Hu, Shuqing Ma, Yingjun Wang
KEYWORDS:
SO42-/ZrO2, n-Pentane Isomerization, γ-Al2O3, Supported Superacid Catalysts
JOURNAL NAME:
Modern Research in Catalysis,
Vol.3 No.3,
July
15,
2014
ABSTRACT:
A solid superacid catalyst Pt-SO42-/ZrO2-A12O3 for n-pentane isomerization, was prepared by incipient-wetness impregnation. Preparetion
conditions, namely, calcination temperature, concentration of sulfuric acid
solution used in impregnation and Al2O3 concentration,
were varied to investigate the effects on catalytic performance of Pt-SO42-/ZrO2-A12O3.
The results showed that the PtSZA catalyst exhibited excellent catalytic
performance for n-pentane isomerization. Under optimized preparation conditions
of calcination temperature of 650°C, reaction time for 3 h, concentration of
sulfuric acid solution for 0.5 mol/L, 30% of Al2O3 concentration and 0.3% of Pt concentration, the n-pentane conversion and
isopentane selectivity of Pt-SO42-/ZrO2-A12O3 could reach up to 62.17% and 91.60%, respectively.