V2O5/g⁃C3N4催化剂的制备及其模拟油中硫化物的脱除

Preparation of V2O5/g⁃C3N4 Catalyst and Desulfurization Ability in Model Oil

张豪 李秀萍 赵荣祥

Zhang Hao Li Xiuping Zhao Rongxiang

辽宁石油化工大学 石油化工学院，辽宁 抚顺 113001

School of Petrochemical Engineering， Liaoning Petrochemical University， Fushun Liaoning 113001，China

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The V2O5/g⁃C3N4 catalyst was prepared by calcination method, using melamine, ammonium metavanadate, boric acid as precursors and methanol as solvent. The structure and morphology of the catalyst were characterized by X⁃Ray Diffraction (XRD), Fourier transform infrared spectroscopy (FT⁃IR), X⁃ray photoelectron spectroscopy (XPS), scanning tunneling microscope(SEM) and brunauer⁃emmett⁃teller(BET). The desulfurization ability of dibenzothiophene (DBT) in model oil was investigated using V2O5/g⁃C3N4 as catalyst, acetonitrile as extractant and H2O2 as oxidant. The effects of reaction temperature, amount of catalyst and extractant, n(H2O2)/n(S) molar ratio, and different sulfides on desulfurization rate were investigated. Under the optimum conditions: 5.0 mL model oil, 3.0 mL acetonitrile, n(H2O2)/n(DBT)=8, 0.02 g of catalyst, temperature was 30 ℃ and reaction time was 60 min, the desulfurization rate of DBT can reach 91.9%, which can also keep at a higher value at 85.7% after 5 times of catalyst regeneration.

辽宁省自然科学基金指导计划项目（2019-ZD?0064）。

10.3969/j.issn.1006-396X.2021.01.002