Tuning Hydrodesulfurization Active‐Phase Dispersion using Optimized Mesoporous Titania‐Doped Silica Supports

• DOI: 10.1002/cctc.201300521
• Publication Date: 2013-11-27T13:34:59Z
• Authors: Minh Tuan Nguyen ...; Prashant Rajbhandari; Christine Lancelot; Pascal Blanchard; Carole Lamonier; Magali Bonne; Sébastien Royer; Franck Dumeignil; Edmond Payen
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract Solids composed of TiO 2 nano‐crystallites (10–40 wt %) dispersed in an SBA‐15 matrix were synthesised and used as hydrodesulfurisation (HDS) active‐phase supports. Well‐dispersed polymolybdate species detected by Raman spectroscopy on all the CoMo‐based oxidic precursors. Undesirable bulk CoMoO 4 mixed oxide was also surface low‐TiO ‐content materials, which suggests enhancement Mo dispersion a result presence . After activation under H /H S, obtained catalysts tested HDS thiophene. An optimum conversion observed for catalyst supported solid that contained 20 % , outperformed homologous samples SBA‐15. This clearly highlights beneficial effect using such nano‐TiO ‐SBA‐15 composite supports, confers adequate textural properties to system, active phase benefits from dispersive