Ultra-deep hydrodesulfurization of 4, 6-dimethyldibenzothiophene over Mo sulfide catalysts supported on TiO2-Al2O3 composite

Kazushige Takahashi*, Youssef Saih, Kohichi Segawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We have prepared TiO2-Al2O3 composites by chemical vapor deposition technique using TiCl4 as a precursor. A high dispersion of TiO2 over γ-Al2O3 has been elucidated using nitrogen adsorption at 77 K, X-ray photoelectron spectroscopy and X-ray fluorescence measurements. Mo/TiO2-Al2O3 (10.2 wt% TiO2) catalysts exhibit a much higher hydrodesulfurization activity for 4,6-dimethyldibenzothiophene compared to those supported on alumina or titania under mild operating conditions (573K, 3MPa). XPS investigations indicated that molybdenum phases supported on TiO2-Al2O3 composites present higher reducibility/sulfidability properties compared to those supported on alumina.

Original languageEnglish (US)
Pages (from-to)311-314
Number of pages4
JournalStudies in Surface Science and Catalysis
Volume145
StatePublished - Jan 1 2002

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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