Comparison of molybdenum carbide and tungsten carbide for the hydrodesulfurization of dibenzothiophene - Archive ouverte HAL
Article Dans Une Revue Catalysis Today Année : 2006

Comparison of molybdenum carbide and tungsten carbide for the hydrodesulfurization of dibenzothiophene

Résumé

The molybdenum and tungsten carbides (Mo2C and W2C) were synthesized, characterized and tested in hydrodesulfurization (HDS) of dibenzothiophene (DBT). The phase purity of these catalysts was established by X-ray diffraction (XRD), and the surface properties were determined by N2 BET specific surface area (Sg) measurements, CO chemisorption and high-resolution transmission electron microscopy (HRTEM). The activities of catalysts were determined during the HDS of DBT at a temperature of 613 K and under a 6 MPa total pressure. Both molybdenum and tungsten carbides were active in HDS of DBT. The reactivity studies showed that molybdenum carbide was more active than tungsten carbide related to weight. However, W2C was shown to possess stronger hydrogenating properties.

Domaines

Catalyse

Dates et versions

hal-00128084 , version 1 (30-01-2007)

Identifiants

Citer

Agnieszka Szymanska-Kolasa, Marek Lewandowski, Celine Sayag, G. Djéga-Mariadassou. Comparison of molybdenum carbide and tungsten carbide for the hydrodesulfurization of dibenzothiophene. Catalysis Today, 2006, 119, pp.7-12. ⟨10.1016/j.cattod.2006.08.021⟩. ⟨hal-00128084⟩
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