Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study

Chuanzhu LU, Hui FU, Huipeng LI, Hua ZHAO, Tianfeng CAI

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PDF(484 KB)
Front. Chem. Sci. Eng. ›› 2014, Vol. 8 ›› Issue (2) : 203-211. DOI: 10.1007/s11705-014-1420-3
RESEARCH ARTICLE

Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study

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Abstract

ZSM-5/SBA-15 composite molecular sieves were synthesized using post-synthesis method and characterized by X-ray diffraction and N2 adsorption-desorption. The oxidative-extration desulfurization of model oil was investigated by using hydrogen peroxide as the oxidant, tetrabutyl ammonium bromide as phase transfer catalyst, dimethyl sulfoxide as extractant, and Zr-ZSM-5/SBA-15, Ag-ZSM-5/SBA-15, Ce-ZSM-5/SBA-15 as catalyst. Under the optimal conditions, the desulfurization rate decreases in the order: Zr-ZSM-5/SBA-15>Ce-ZSM-5/SBA-15>Ag-ZSM-5/SBA-15. The highest desulfurization rate is 84.53% under the catalysis of Zr-ZSM-5/SBA-15. Kinetics analysis shows that the reaction is pseudo-first-order with the activation energy of 44.23 kJ/mol.

Keywords

composite molecular sieve / oxidation desulfuration / extraction / kinetic

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Chuanzhu LU, Hui FU, Huipeng LI, Hua ZHAO, Tianfeng CAI. Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study. Front. Chem. Sci. Eng., 2014, 8(2): 203‒211 https://doi.org/10.1007/s11705-014-1420-3

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Acknowledgements

We acknowledge the Doctor financial support from Liaoning Province in China (Grant No. 20081104).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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