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Citation: Dong Xie, Qihui He, Yangyang Su, Tongwei Wang, Renfu Xu, Baixing Hu. Oxidative desulfurization of dibenzothiophene catalyzed by peroxotungstate on functionalized MCM-41 materials using hydrogen peroxide as oxidant[J]. Chinese Journal of Catalysis, ;2015, 36(8): 1205-1213. doi: 10.1016/S1872-2067(15)60897-X shu

Oxidative desulfurization of dibenzothiophene catalyzed by peroxotungstate on functionalized MCM-41 materials using hydrogen peroxide as oxidant

1.
Jiangsu Key Laboratory of Vehicle Emissions Control, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China

Corresponding author: Baixing Hu,
Received Date: 29 January 2015
Available Online: 20 May 2015
Fund Project: 国家基础科学人才培养基金(J1103310). (J1103310)

Catalysts play an important role in oxidative desulfurization, a promising process for producing cleaner fossil fuels for transport. A highly efficient catalyst, Q₄-H₂Se^IV₃W₆, for the oxidative desulfurization of dibenzothiophene (DBT) was reported in 2011. To comprehensively evaluate this catalyst and better understand its recovery, two types of the catalyst were prepared by impregnating Q₄-H₂Se^IV₃W₆on MCM-41 and functionalized MCM-41 materials. In the oxidative desulfurization process catalyzed by these supported catalysts, the conversion of DBT reached 98.7%. The catalytic activities were excellent when Q₄-H₂Se^IV₃W₆ was impregnated on functionalized MCM-41. The results showed that the supported catalysts had excellent reusability. In addition, a mechanism for the catalytic oxidative desulfurization was proposed.
- Dibenzothiophene,
- Oxidative desulfurization,
- Peroxotungstate,
- MCM-41
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