西南石油大学学报(自然科学版)

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Study of Oxidative Desulfurization of Diesel by a New Quaternary
Ammonium Gemini Surfactant

Peng Guofeng1,2, Zhao Tianhong2, Huang Zhiyu3, Chen Jingwei1, Chai Junjun1   

  1. 1. Production Division I of Sichuan Petrochemical Co. Ltd.,PetroChina,Pengzhou,Sichuan 611930,China
    2. College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    3. Graduate School,Southwest Petroleum University,Chengdu,Sichuan 610500,China
  • Online:2013-10-20 Published:2013-10-20

Abstract:

Aimed at the sulfur components in diesel fuel, which is one of factors that causes the formation of acid rain in
atmosphere, we investigated the deep desulfurization technology for sulfides removal. In order to speed up the diesel oil oxida-
tion desulfurization reaction and improve the desulfurization rate, homemade synthesis of new Quaternary Ammonium Gemini
surface active agent (abbreviated DAEQ9–Cl)as a phase transfer catalyst, hydrogen peroxide-acetic acid as the oxidation sys-
tem, Nanchong refinery straight-run diesel for the study, the suitable reaction conditions and catalytic oxidation desulfurization
effect of H2O2/CH3COOH/DAEQ9–Cl system diesel desulfurization was investigated. Experimental results show that, in the
oxidation of diesel desulfurization reaction, DAEQ9–Cl is a kind of fine phase transfer catalyst, sulfur content in diesel oil down
to 28 µg/g, the desulfurization rate of 96.2%. This study is significant for controlling environment pollutions and environmental
protection.

Key words: quaternary ammonium Gemini surfactant, phase transfer catalyst, diesel, oxidative desulfurization