PROCEDURE FOR THE PREPARATION OF A TITANIA-BASED SUPPORT

THERMALLY STABILIZED BY THE ADDITION OF RARE EARTHS The present invention relates to a procedure for the preparation of a support based on a transition metal oxide, thermally stabilized by the addition of rare earths, using a sol-gel method for the synthesis of the same, which comprises: support synthesis, rare earths addition to improve its thermal stability, drying, calcining at oxidant atmosphere and high temperature hydro-deactivation treatments. The support is then impregnated with Group VIB and VIII metals of the Periodic Table of the Elements by means of conventional techniques, drying and high temperature calcining and subsequently evaluated in catalytic activity tests at micro-reaction level and pilot plant level in hydrodesulfurization reactions. La presente invencion se refiere a un procedimiento para la preparacion de un soporte basado en un oxido de un metal de transicion, estabilizado termicamente mediante la adicion de tierras raras, usando el metodo de sol-gel para la sintesis del mismo, el cual comprende: sintesis del soporte, adicion de tierras raras para mejorar su estabilidad termica, secado, calcinacion en atmosfera oxidante y tratamientos de hidrodesactivacion a alta temperatura. El soporte es posteriormente impregnado con metales del grupo VIB y VIII de la tabla periodica mediante tecnicas convencionales, secado y calcinado a alta temperatura y posteriormente evaluado en pruebas de actividad catalitica a nivel microrreaccion y nivel planta piloto, en reacciones de hidrodesulfuracion.