Desulfurization of Saudi Arabian crudes by oxidation–extraction method

نویسندگان

  • Raja L. AL Otaibi
  • Dong Liu
  • Xulian Hou
  • Linhua Song
  • Qingyin Li
  • Mengfei Li
  • Hamid O. Almigrin
  • Zifeng Yan
چکیده

The oxidation-extraction desulfurization of Saudi Arabian crudes was conducted with hydrogen peroxide-acetic acid oxidation system. The selection of extractant, the optimization of oxidation-extraction conditions, and the exploration of desulfurization mechanism were studied. As DMF was used as the extractant, the optimal desulfurization rate of 35.11 % and oil recovery of 95 % were obtained at 70 °C with the molar ratio of peracetic acid to sulfur of 8:1, the molar ratio of acetic acid to hydrogen peroxide of 2:1 and the volume ratio of extractant to oil of 1:1. The desulfurization effect of different fractions in the treated Saudi Arabian crudes was found to obey the following order: gasoline-diesel fraction >VGO fraction >VR fraction, due to different types and structures of sulfur compounds. The oil quality was less affected and most sulfides were mainly extracted via DMF.

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عنوان ژورنال:

دوره 5  شماره 

صفحات  -

تاریخ انتشار 2015