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Citation: 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. shu

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

  • 1.

    1. College of Chemistry, Baicheng Normal University, Baicheng 137000, China;

  • Corresponding author: ZHAO Xiao-bo, 
  • Received Date: 8 April 2013
    Available Online: 7 June 2013

    Fund Project: 中国石油天然气股份有限公司FCC汽油改质催化剂及工艺研究项目(20090392) (20090392)吉林省教育厅"十二五"科学技术研究项目(吉教科合字[2012]第364号)。 (吉教科合字[2012]第364号)

  • 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.
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