Article: Influence of the presence of Al2O3 on Ni-Mo-W trimetallic catalysts for HDS Journal: International Journal of Materials and Product Technology (IJMPT) 2006 Vol.27 No.1/2 pp.130 - 140 Abstract: This work presents Ni-Mo-W tri-metallic catalysts of the type |NEBULA|, (Soled et al., 2001) bulk and supported, named NEBDMDS, NEB1 (5% Al2O3), NEB2 (25% Al2O3) and NEB3 (50% Al2O3). The materials were prepared from water-soluble ammonium salts by direct precipitation with nickel nitrate. Supported catalysts were synthesised obtaining a gel, which was aged, dried and calcinated. The precursors were sulphiding in a tubular furnace with a flow of DMDS (Dimethyl-disulphide)/N2. The generated catalysts were evaluated in the reaction of hydrodesulphurisation (HDS) of the dibenzothiophene (DBT). They were characterised by the adsorption of nitrogen using the Brunauer, Emmett and Teller (BET) method and Barrett Joyner and Halenda (BJH) method, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electronic Microscopy (TEM). The increase of the content of Al2O3 in the catalysts influenced on the decrease of the catalytic activity. The NEBDMDS catalyst presented the catalytic activity higher of 13.1 mol/s g. Inderscience Publishers - linking academia, business and industry through research

Title: Influence of the presence of Al₂O₃ on Ni-Mo-W trimetallic catalysts for HDS

Authors: Y. Gochi-Ponce, L. Alvarez-Contreras, F. Paraguay-Delgado, G. Alonso-Nunez

Addresses: Centro de Investigacion en Materiales Avanzados SC, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Chih., 31109, Mexico. ' Centro de Investigacion en Materiales Avanzados SC, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Chih., 31109, Mexico. ' Centro de Investigacion en Materiales Avanzados SC, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Chih., 31109, Mexico. ' Centro de Investigacion en Materiales Avanzados SC, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Chih., 31109, Mexico

Abstract: This work presents Ni-Mo-W tri-metallic catalysts of the type |NEBULA|, (Soled et al., 2001) bulk and supported, named NEBDMDS, NEB1 (5% Al₂O₃), NEB2 (25% Al₂O₃) and NEB3 (50% Al₂O₃). The materials were prepared from water-soluble ammonium salts by direct precipitation with nickel nitrate. Supported catalysts were synthesised obtaining a gel, which was aged, dried and calcinated. The precursors were sulphiding in a tubular furnace with a flow of DMDS (Dimethyl-disulphide)/N₂. The generated catalysts were evaluated in the reaction of hydrodesulphurisation (HDS) of the dibenzothiophene (DBT). They were characterised by the adsorption of nitrogen using the Brunauer, Emmett and Teller (BET) method and Barrett Joyner and Halenda (BJH) method, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electronic Microscopy (TEM). The increase of the content of Al₂O₃ in the catalysts influenced on the decrease of the catalytic activity. The NEBDMDS catalyst presented the catalytic activity higher of 13.1 mol/s g.

Keywords: tri-metallic catalysts; NEBULA; supported; alumina; clean fuels; dimethyl-disulphide; hydrodesulphurisation; HDS.

DOI: 10.1504/IJMPT.2006.010680

International Journal of Materials and Product Technology, 2006 Vol.27 No.1/2, pp.130 - 140

Published online: 16 Aug 2006 *

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Title: Influence of the presence of Al2O3 on Ni-Mo-W trimetallic catalysts for HDS

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Title: Influence of the presence of Al₂O₃ on Ni-Mo-W trimetallic catalysts for HDS