Oxidative Desulfurization of Light Gas Oil and Vacuum Gas Oil by Oxidation and Solvent Extraction

DOI Web Site 被引用文献13件
  • Shujiro Otsuki
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
  • Takeshi Nonaka
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
  • Noriko Takashima
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
  • Weihua Qian
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
  • Atsushi Ishihara
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
  • Tamotsu Imai
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
  • Toshiaki Kabe
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan

説明

The oxidation of model sulfur compounds (thiophene derivatives, benzothiophene derivatives, and dibenzothiophene derivatives), straight run-light gas oil (SR-LGO, S:  1.35 wt %), and vacuum gas oil (VGO, S:  2.17 wt %) were conducted with a mixture of hydrogen peroxide and formic acid. The thiophene derivatives with 5.696 to 5.716 electron densities on the sulfur atoms could not be oxidized at 50 °C. Benzo[b]thiophene with 5.739 electron density and other benzothiophene and dibenzothiophenes with higher electron densities could be oxidized. The sulfur compounds in SR-LGO and VGO appeared to be oxidized to a detectable levels (c.a., 0.01 wt % S) by GC-FPD analysis. The IR spectra of oxidized SR-LGO and VGO showed that sulfones were formed by oxidation. The removal of sulfur compounds by extraction became more effective for the oxidized samples than for the original samples. Lighter sulfur compounds were preferentially extracted. The extraction efficiencies of solvents, i.e., N,N‘-dimethylformamide (DMF), a...

収録刊行物

  • Energy & Fuels

    Energy & Fuels 14 (6), 1232-1239, 2000-10-14

    American Chemical Society (ACS)

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