石油化工高等学校学报

石油化工高等学校学报 ›› 2021, Vol. 34 ›› Issue (1): 7-14.DOI: 10.3969/j.issn.1006-396X.2021.01.002

• 石油化工 • 上一篇    下一篇

V2O5/g⁃C3N4催化剂的制备及其模拟油中硫化物的脱除

张豪， 李秀萍， 赵荣祥   

  1. 辽宁石油化工大学 石油化工学院，辽宁 抚顺 113001
  • 收稿日期:2019-12-19 修回日期:2020-04-04 出版日期:2021-02-26 发布日期:2021-04-02
  • 通讯作者: 赵荣祥（1971-），男，博士，教授，从事油品脱硫脱氮研究；E-mail：zylhzrx@126.com。
  • 作者简介:张豪（1993-），男，硕士研究生，从事油品脱硫研究；E-mail：871779986@qq.com。
  • 基金资助:
    辽宁省自然科学基金指导计划项目（2019-ZD?0064）。

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

Zhang Hao， Li Xiuping， Zhao Rongxiang   

  1. School of Petrochemical Engineering， Liaoning Petrochemical University， Fushun Liaoning 113001，China
  • Received:2019-12-19 Revised:2020-04-04 Published:2021-02-26 Online:2021-04-02

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摘要： 以三聚氰胺、偏钒酸铵、硼酸为前驱体，通过煅烧法制备V2O5/g⁃C3N4催化剂。采用XRD、FT⁃IR、XPS、SEM和BET等技术对催化剂的结构与形貌进行表征。以V2O5/g⁃C3N4为催化剂，乙腈为萃取剂，H2O2为氧化剂对模拟油中二苯并噻吩（DBT）的脱除进行考察。探究了反应温度、催化剂质量、萃取剂体积、n(H2O2)/n(S)以及不同硫化物等因素对脱硫效果的影响。在模拟油体积为5.0 mL、萃取剂乙腈体积为3.0 mL、n(H2O2)/n(S)=8、催化剂质量为0.02 g、反应温度为30 ℃和反应时间为60 min的最佳条件下，DBT的脱除率达到91.9%，经过5次催化剂再生后脱硫率仍可以达到85.7%。

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Abstract:

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.

Key words: V2O5/g?C3N4, Oxidative desulfurization, Dibenzothiophene (DBT), Melamine

引用本文

张豪， 李秀萍， 赵荣祥. V2O5/g⁃C3N4催化剂的制备及其模拟油中硫化物的脱除[J]. 石油化工高等学校学报, 2021, 34(1): 7-14.

Zhang Hao， Li Xiuping， Zhao Rongxiang. Preparation of V2O5/g⁃C3N4 Catalyst and Desulfurization Ability in Model Oil[J]. Journal of Petrochemical Universities, 2021, 34(1): 7-14.

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