Supported rhenium sulfide catalysts in thiophene and 4,6-dimethyldibenzothiophene hydrodesulfurization: Effect of acidity of the support over activities - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Applied Catalysis A : General Année : 2011

Supported rhenium sulfide catalysts in thiophene and 4,6-dimethyldibenzothiophene hydrodesulfurization: Effect of acidity of the support over activities

Résumé

Three different zeolites, gamma-alumina and silica supports were used to prepare ReS2 catalysts by incipient wetness impregnation of ammonium perrhenate (NH4ReO4). The catalysts were characterized and tested in the hydrodesulfurization (HDS) of thiophene in an atmospheric fixed bed reactor, and of the 4,6-dimethyldibenzothiophene (4,6-DMDBT) HDS in a high pressure stirred tank reactor. The results showed that the acidity of the zeolites has a detrimental influence over hydrodesulfurization activity of the Re sulfide, contrarily to the enhancement observed previously with zeolite-supported Mo sulfide catalysts. The catalyst prepared over a non-acidic zeolite (HSZ-390) was found very efficient in thiophene HDS and comparable to silica for 4,6-DMDBT. (C) 2010 Elsevier B.V. All rights reserved.

Dates et versions

hal-00602783 , version 1 (23-06-2011)

Identifiants

Citer

C. Sepulveda, V. Belliere, D. Laurenti, N. Escalona, R. Garcia, et al.. Supported rhenium sulfide catalysts in thiophene and 4,6-dimethyldibenzothiophene hydrodesulfurization: Effect of acidity of the support over activities. Applied Catalysis A : General, 2011, 393, pp.288-293. ⟨10.1016/j.apcata.2010.12.008⟩. ⟨hal-00602783⟩
63 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More