Resumo

TOLENTINO NAVARRO, L. E.; REYES SANTIAGO, R. I.  e  CEDENO CAERO, L.. Desulfuración oxidativa de dibenzotiofenos con catalizadores de tungsteno soportados en Al ₂ O ₃ o Al ₂ O ₃ -TiO ₂. Superf. vacío [online]. 2015, vol.28, n.4, pp.102-107. ISSN 1665-3521.

Tungsten oxides based catalysts on alumina or mixed oxide alumina-titania were carried out in oxidative desulfurization (ODS) of dibenzothiophene compounds using H2O2 as oxidant agent. The catalysts were prepared by incipient impregnation method using different loading of tungsten and characterized by x-ray diffraction (XRD), scanning electronic microscopy (SEM-EDX) and temperature programmed reduction (TPR). The results show ODS activity was improved in catalysts containing titania and using W species partially reduced.

Palavras-chave : Oxidesulfurization; WO₃/ Al₂O₃; WO₃/ Al₂O₃- TiO₂, H₂O₂; Dibenzothiophenes.

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