Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoSx/gamma-Al2O3, NiSx/gamma-Al2O3 and MoS2/gamma-Al2O3 catalysts

Escalona, N.; García R; Lagos, G; Navarrete C.; Baeza, P; Gil-Llambias, FJ

Abstract

Dibenzothiophene (DBT) hydrodesulphurization (HDS) reaction at 3 MPa and 325-375 °C on Mo/γ-Al2O3 single-bed and Me/γ-Al2O3//SiO2//Mo/γ-Al2O3 (Me = Co or Ni) double-bed catalysts were investigated. Results indicate that ratio cyclohexylbenzene (CHB)/biphenyl (BP) or selectivity is higher when using double-beds rather than a single-bed. Synergy in dibenzothiophene hydrodesulphurization on Co//Mo and Ni//Mo double-beds is also detected. Changes in selectivity and conversion are attributed to the action of spillover hydrogen (Hso) formed in the first bed that reaches the second bed. © 2006 Elsevier B.V. All rights reserved.

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Título según WOS: Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoSx/gamma-Al2O3, NiSx/gamma-Al2O3 and MoS2/gamma-Al2O3 catalysts
Título según SCOPUS: Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoSx/?-Al2O3, NiSx/?-Al2O3 and MoS2/?-Al2O3 catalysts
Título de la Revista: CATALYSIS COMMUNICATIONS
Volumen: 7
Número: 12
Editorial: Elsevier
Fecha de publicación: 2006
Página de inicio: 1053
Página final: 1056
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S1566736706001464
DOI:

10.1016/j.catcom.2006.05.011

Notas: ISI, SCOPUS