1. Effect of Mesostructured Zirconia Support on the Activity and Selectivity of 4,6-Dimethydibenzothiophene Hydrodesulfurization.
- Author
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Brunet, Sylvette, Lebeau, Bénédicte, Naboulsi, Issam, Michelin, Laure, Comparot, Jean Dominique, Marichal, Claire, Rigolet, Séverinne, Bonne, Magali, and Blin, Jean-Luc
- Subjects
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DESULFURIZATION , *CATALYSTS , *DISPERSION (Chemistry) , *SULFIDATION , *ALUMINUM oxide - Abstract
In contrast with the conventional CoMoS/alumina catalyst, the use of amorphous mesostructured ZrO2 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 ZrO2 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. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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