Resumen

SANDOVAL ROBLES, G; JIMENEZ, J; GARCIA, R.  y  MELO BANDA, A.. Synthesis and Characterization of CoMO/Al₂O₃TiO₂ System by SolGel Method in the Hydrodesulfuration of Heavy Vacuum Gas Oil. Inf. tecnol. [online]. 2004, vol.15, n.3, pp.81-84. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642004000300013.

The use of Al₂O₃TiO₂ mixed oxides are proposed as catalytic supports for hydrotreating processes to remove sulfur and nitrogen heteroatoms from petroleum heavy cuts. Pure Al₂O₃ and TiO₂ oxides as well as their mixtures containing 20, 35, 50, 65 and 80 mol percent on TiO₂ were prepared by the solgel method. They were calcined at 500, 550 and 600ºC under an air flow of 1.2 L/h. The supports were characterized by Xray diffraction, physical adsorption of nitrogen, and nbutylamine potentiometric titration.They were then impregnated with a solution of cobalt nitrate and ammonium heptamolybdate, to obtain a concentration of 2.8 Mo atom/nm². The catalytic activity of the solids was measured for the vacuum heavy gasoil HDS at 350 ºC and 80 kg/cm². The sulfur removal obtained with this catalyst was higher than that of a reference industrial catalyst

Palabras clave : catalyst technology; aluminatitanium dioxide; hydrodesulfuration; gasoil; solgel method.