Citation: Yongsheng Tian, Guanghui Wang, Juan Long, Jiawei Cui, Wei Jin, Danlin Zeng. Ultra-deep oxidative desulfurization of fuel with H₂O₂ catalyzed by phosphomolybdic acid supported on silica[J]. Chinese Journal of Catalysis, ;2016, 37(12): 2098-2105. doi: 10.1016/S1872-2067(16)62558-5 shu

Ultra-deep oxidative desulfurization of fuel with H₂O₂ catalyzed by phosphomolybdic acid supported on silica

a Hubei Key Laboratory of Coal Conversion and New Carbon Material, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;
b Wuhan Huade Ecotek Corporation, Wuhan 430080, Hubei, China

Received Date: 22 July 2016
Revised Date: 18 September 2016

Fund Project: This work was supported by the National Natural Science Foundation of China (21473126).

A highly active catalyst of phosphomolybdic acid (HPMo) was prepared and applied in the catalytic oxidative desulfurization (CODS) system. The catalyst was characterized by FT-IR, XRD, XPS and superconducting NMR. The influences of m(catalyst)/m(oil), V(H₂O₂)/V(oil), reaction temperature and reaction time on the fractional conversion of benzothiophene (BT) and dibenzothiophene (DBT) were investigated. GC-MS and micro-coulometric methods were employed to investigate the reaction. The catalyst has high desulfurization activity in the removal of BT and DBT under mild conditions. The recycling experiments indicated that DBT and BT removal could still reach 95.2% and 95.7% after 10 cycles.
- Mesoporous silica,
- Phosphomolybdic acid,
- Oxidative desulfurization,
- Benzothiophene,
- Dibenzothiophene
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Ultra-deep oxidative desulfurization of fuel with H₂O₂ catalyzed by phosphomolybdic acid supported on silica