Citation: SONG Hua, SONG Hua-lin, CUI Xue-han, ZHANG Xu. Effect of Pd content on the catalytic performance of SO₄^2-/ZrO₂-WO₃ solid superacid in pentane isomerization[J]. Journal of Fuel Chemistry and Technology, ;2012, 40(11): 1346-1352. shu

Effect of Pd content on the catalytic performance of SO₄^2-/ZrO₂-WO₃ solid superacid in pentane isomerization

SONG Hua ^1,2,, ,
SONG Hua-lin ^3,, ,
CUI Xue-han ¹ ,
ZHANG Xu ¹

1.
1. College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;

Corresponding author: SONG Hua, SONG Hua-lin,
Received Date: 20 April 2012
Available Online: 5 July 2012
Fund Project: 中国石油天然气股份有限公司科技风险创新基金(07-06D-01-04-03-02)。 (07-06D-01-04-03-02)

Pd-SO₄^2-/ZrO₂-WO₃ solid superacid catalysts were prepared and characterized by XRD, FT-IR, TPR, XPS, BET and TG-DTA; the effect of Pd content on its catalytic performance in n-pentane isomerization was investigated. The results showed that Pd can reduce the reduction temperature, increase the decomposition temperature of SO₄^2- and therefore improve the thermostability of the Pd-SO₄^2-/ZrO₂-WO₃ catalysts. Pd-SO₄^2-/ZrO₂-WO₃ with a Pd mass fraction of 0.05% exhibits the highest catalytic activity for isomerization; over it under 260℃, 2.0 MPa, mass hourly space velocity of 1.0 h^-1, and H₂/n-pentane molar ration of 4.0, the conversion of n-pentane and the yield of liquid products are 40.1% and 93.9%, respectively.
- solid superacid,
- catalyst,
- ZrO₂-WO₃,
- palladium,
- pentane,
- isomerization
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Effect of Pd content on the catalytic performance of SO42-/ZrO2-WO3 solid superacid in pentane isomerization

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Effect of Pd content on the catalytic performance of SO₄^2-/ZrO₂-WO₃ solid superacid in pentane isomerization