Effects of Al<sub>2</sub>O<sub>3</sub> pore structure on FCC gasoline upgrading properties of the nanosized HZSM-5 based catalysts

ZHAO Xiao-bo; WANG Wen-ju; GUO Xin-wen; WANG Xiang-sheng

Volume 41 Issue 11

Nov. 2013

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Article Navigation > Journal of Fuel Chemistry and Technology > 2013 > 41(11): 1343-1348

ZHAO Xiao-bo, WANG Wen-ju, GUO Xin-wen, WANG Xiang-sheng. Effects of Al2O3 pore structure on FCC gasoline upgrading properties of the nanosized HZSM-5 based catalysts[J]. Journal of Fuel Chemistry and Technology, 2013, 41(11): 1343-1348.

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ZHAO Xiao-bo, WANG Wen-ju, GUO Xin-wen, WANG Xiang-sheng. Effects of Al₂O₃ pore structure on FCC gasoline upgrading properties of the nanosized HZSM-5 based catalysts[J]. Journal of Fuel Chemistry and Technology, 2013, 41(11): 1343-1348.

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Effects of Al₂O₃ pore structure on FCC gasoline upgrading properties of the nanosized HZSM-5 based catalysts

1.
College of Chemistry, Baicheng Normal University, Baicheng 137000, China;
2.
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China

Received Date: 2013-04-08
Rev Recd Date: 2013-06-07
Publish Date: 2013-11-30

Abstract

Abstract

Two Al₂O₃ supports were characterized by means of NH₃-TPD, FT-IR and N₂ adsorption-desorption. The characterization results showed that the two Al₂O₃ supports have no significant differences in their total acidity and acidity strength. The acid sites are mainly Lewis ones, but Al₂O₃ (b) has larger average pore diameter and pore volume than Al₂O₃ (a). The influence of the pore structures of the Al₂O₃ supports on the full range FCC gasoline upgrading performance of the nanosized HZSM-5 based catalysts was investigated in a fixed-bed reactor. The results indicated that the HZSM-5 catalyst extruded with macroporous Al₂O₃ exhibited superior activity, stability and performance in reducing olefin content of FCC gasoline. The modified nanosized LaNiMo/HZSM-5 catalyst reduced olefin and sulfur concentration in FCC gasoline by about 83% and 87% within 300 h time on stream, respectively, meanwhile the gasoline octane number was preserved.
- alumina support,
- nanosized HZSM-5,
- FCC gasoline,
- octane number

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References(17)

References

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