Hydrodesulfurization of dibenzothiophen with MoO3/TiO2 catalyst

Jin Long Liu, Yin Hua Zhu, Zhu Hong Yang, Hai Tang Wang, Xiao Hua Lu, Xin Feng, Huai Yuan Wang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Mesoporous titania whiskers were used as MoO3 hydrodesulfurization catalyst support. The novel support was impregnated with ammonium heptamolybdate [(NH4)6Mo7 O24·4H2O] solution at different concentrations, and MoO3/TiO2 catalyst with different MoO3 loadings was obtained. The catalyst was characterized by XRD, N2 adsorption-desorption and SEM, the one with higher dispersion of MoO3 was chosen for dibenzothiophene hydrodesulfurization. And the influences of reaction conditions and stability of MoO3/TiO2 catalyst on dibenzothiophene hydrodesulfurization of the chosen catalyst were tested in a fixed-bed reactor. Dibenzothiophene conversion rate could approach 100% under reaction temperature 280~300°C, hydrogen pressure 2.0 MPa, hydrogen/oil ratio 600 and LHSV 4 h-1. Furthermore, there was no obvious evidence of deactivation of the catalyst after running for a long time of over 1000 h.

Original languageEnglish
Pages (from-to)882-886
Number of pages5
JournalGuocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
Volume9
Issue number5
StatePublished - Oct 2009

Keywords

  • Dibenzothiophene
  • Hydrodesulfurization
  • Mesoporous titania whisker
  • Molybdenum oxide

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