Investigation of Influential Parameters in Deep Oxidative Desulfurization of Dibenzothiophene with Hydrogen Peroxide and Formic Acid

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Haghighat Mamaghani, Alireza ; Fatemi, Shohreh ; Asgari, Mehrdad (2013)
  • Publisher: Hindawi Publishing Corporation
  • Journal: International Journal of Chemical Engineering (issn: 1687-806X, eissn: 1687-8078)
  • Related identifiers: doi: 10.1155/2013/951045
  • Subject: TP155-156 | Article Subject | Chemical engineering
    mesheuropmc: inorganic chemicals | mental disorders

An effective oxidative system consisting of hydrogen peroxide, formic acid, and sulfuric acid followed by an extractive stage were implemented to remove dibenzothiophene in the simulated fuel oil. The results revealed such a great performance in the case of H2O2 in the presence of formic and sulfuric acids that led to the removal of sulfur compounds. Sulfuric acid was employed to increase the acidity of media as well as catalytic activity together with formic acid. The oxidation reaction was followed by a liquid-liquid extraction stage using acetonitrile as a polar solvent to remove produced sulfones from the model fuel. The impact of operating parameters including the molar ratio of formic acid to sulfur ( ), hydrogen peroxide to sulfur ( ), and the time of reaction was investigated using Box-Behnken experimental design for oxidation of the model fuel. A significant quadratic model was introduced for the sulfur removal as a function of effective parameters by the statistic analysis.
  • References (27)
    27 references, page 1 of 3

    Wan, M.-W., Yen, T.-F.. Enhance efficiency of tetraoctylammonium fluoride applied to ultrasound-assisted oxidative desulfurization (UAOD) process. Applied Catalysis A. 2007; 319: 237-245

    Dai, Y., Zhao, D., Qi, Y.. Sono-desulfurization oxidation reactivities of FCC diesel fuel in metal ion/H2O2 systems. Ultrasonics Sonochemistry. 2011; 18 (1): 264-268

    Song, C.. An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel. Catalysis Today. 2003; 86 (1–4): 211-263

    Ali, M. F., Al-Malki, A., Ahmed, S.. Chemical desulfurization of petroleum fractions for ultra-low sulfur fuels. Fuel Processing Technology. 2009; 90 (4): 536-544

    Dehkordi, A. M., Sobati, M. A., Nazem, M. A.. Oxidative desulfurization of non-hydrotreated kerosene using hydrogen peroxide and acetic acid. Chinese Journal of Chemical Engineering. 2009; 17 (5): 869-874

    Haw, K.-G., Abu Bakar, W. A. W., Ali, R., Chong, J.-F., Abdul Kadir, A. A.. Catalytic oxidative desulfurization of diesel utilizing hydrogen peroxide and functionalized-activated carbon in a biphasic diesel-acetonitrile system. Fuel Processing Technology. 2010; 91 (9): 1105-1112

    Liu, G., Cao, Y., Jiang, R., Wang, L., Zhang, X., Mi, Z.. Oxidative desulfurization of jet fuels and its impact on thermal-oxidative stability. Energy and Fuels. 2009; 23 (12): 5978-5985

    Liang, W., Zhang, S., Li, H., Zhang, G.. Oxidative desulfurization of simulated gasoline catalyzed by acetic acid-based ionic liquids at room temperature. Fuel Processing Technology. 2013; 109: 27-31

    Dehkordi, A. M., Kiaei, Z., Sobati, M. A.. Oxidative desulfurization of simulated light fuel oil and untreated kerosene. Fuel Processing Technology. 2009; 90 (3): 435-445

    Yu, G., Lu, S., Chen, H., Zhu, Z.. Oxidative desulfurization of diesel fuels with hydrogen peroxide in the presence of activated carbon and formic acid. Energy and Fuels. 2005; 19 (2): 447-452

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