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CHARACTERIZATION AND APPLICATION OF PETROLEUM SULFONATE SYNTHESIZED BY GAS-PHASE SO3 SULFONATION IN ROTATING PACKED BED
  • +6
  • Xiaoke Ma,
  • Bin Liu,
  • Tianxiang Ma,
  • Hai-Kui Zou,
  • Guang-Wen Chu,
  • Baochang Sun,
  • Liang-Liang Zhang,
  • Yong Luo,
  • Jianfeng Chen
Xiaoke Ma
Beijing University of Chemical Technology
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Bin Liu
Beijing University of Chemical Technology
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Tianxiang Ma
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Hai-Kui Zou
Beijing University of Chemical Technology
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Guang-Wen Chu
Beijing University of Chemical Technology College of Chemical Engineering
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Baochang Sun
Beijing Univ Chem Technol
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Liang-Liang Zhang
Beijing University of Chemical Technology College of Chemical Engineering
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Yong Luo
Beijing University of Chemical Technology
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Jianfeng Chen
Beijing University of Chemical Technology
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Abstract

In this study, PS was synthesized by gaseous SO3 sulfonation of distillate oil in a rotating packed bed. The chemical compositions of the prepared PS and its raw material (distillate oil) were obtained by the combined analysis of the double-bond equivalent and carbon number at the molecular level. In addition, the EOR performance of PS has been studied by measuring surface tension, interfacial tension (IFT), wettability alteration and core-flooding experiments. An ultra-low IFT value 1.327×10-3 mN/m between the crude oil and prepared PS solution was obtained at the critical micelle concentration (CMC) of PS solution. Core flooding experiments showed that additional oil recoveries of 28.10% and 30.77% were obtained at PS concentrations of 0.3% and 0.6% respectively after conventional water flooding, indicating the prepared PS has good performance on EOR.