Effect of Mesostructured Zirconia Support on the Activity and Selectivity of 4,6-Dimethydibenzothiophene Hydrodesulfurization - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Catalysts Année : 2020

Effect of Mesostructured Zirconia Support on the Activity and Selectivity of 4,6-Dimethydibenzothiophene Hydrodesulfurization

Résumé

In contrast with the conventional CoMoS/alumina catalyst, the use of amorphous mesostructured ZrO 2 as support for the dispersion of the CoMoS active phase in deep hydrodesulfurization (HDS) of 4,6-dimethyldibenzothiophene led to a higher promotion rate and a better sulfidation of the cobalt species. The CoMoS, dispersed over mesostructured amorphous ZrO 2 as catalyst, also induced a modification of the main desulfurization way; in this case, a shift towards direct desulfurization selectivity was observed. This result was unexpected regarding the literature. Indeed, the hydrogenated route was observed for commercial zirconia. The designed catalysts are therefore more eco-friendly, since they consume less hydrogen. This implies a better use of the fossil resources.
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Dates et versions

hal-03060120 , version 1 (13-12-2020)

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Sylvette Brunet, Bénédicte Lebeau, Issam Naboulsi, Laure Michelin, Jean Dominique Comparot, et al.. Effect of Mesostructured Zirconia Support on the Activity and Selectivity of 4,6-Dimethydibenzothiophene Hydrodesulfurization. Catalysts, 2020, Catalysts Based on Mesoporous Materials for Environmental Application, 10 (10), pp.1162. ⟨10.3390/catal10101162⟩. ⟨hal-03060120⟩
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