Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 133, Issue 1-3, Pages 91-99Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2010.04.019
Keywords
SBA-15; Titania; Zirconia; Mo catalysts; Hydrodesulfurization
Categories
Funding
- CONACYT-Mexico [100945]
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In the present paper, we tried to illustrate the advantages that have ZrO2- and TiO2-containing mesoporous ordered SBA-15 materials in comparison with their pure oxide counterparts (SBA-15 silica, ZrO2 and TiO2) and gamma-alumina when used as supports to prepare hydrodesulfurization (HDS) catalysts. To reach this aim, Mo catalysts supported on above materials were prepared and tested in dibenzothiophene HDS. The results show that Mo catalysts supported on TiO2- and especially ZrO2-SBA-15 are more active than all other samples including reference Mo/gamma-Al2O3. To inquire into the reasons of this behavior, supports and catalysts were characterized by N-2 physisorption, X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), isoelectric point (IEP), temperature-programmed reduction (TPR) and high resolution transmission electron microscopy (HRTEM). (C) 2010 Elsevier Inc. All rights reserved.
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