CJCU

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (3): 488.

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Extraction-oxidation Desulfurization of Fuel with Pyridinium-based Ionic Liquid

ZHAO Di-Shun1,3*, WANG Ya-Nan1, DUAN Er-Hong2, ZHANG Juan3   

  1. 1. School of Chemical Engineering, Tianjin University, Tianjin 300072, China;
    2. School of Environmental Science and Engineering,
    3. School of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
  • Received:2009-07-07 Online:2010-03-10 Published:2010-03-10
  • Contact: ZHAO Di-Shun. E-mail: dishunzhao@yahoo.com.cn
  • Supported by:

    国家自然科学基金(批准号: 20576026)资助.

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Abstract:

The N-butyl-pyridinium-based ionic liquid [BPy]BF4 was prepared. The effect of extraction desulfurization on model oil with thiophene and DBT was investigated. Ionic liquid and hydrogen peroxide were tested in extraction-oxidation desulfurization to model oil. The results show that ionic liquid [BPy]BF4 is effective to remove sulfur content in model oil. The best conditions are V(IL)∶V(Oil)∶V(H2O2)=1∶1∶0.4, 55 ℃ and 30 min. The ratios of desulfurization to thiophene and DBT reached 78.5% and 84.3%, respectively, which were much higher than extraction desulfurization only with ionic liquid. In this condition, effect of desulfurization on FCC gasoline was also investigated, the desulfurization was 56.3%. Regenerate ionic liquid can be used more than 4 times.

Key words: Ionic liquid; Extraction-oxidation; Desulfurization; Gasoline

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