Synthesis, characterization and HDS activity of CoMo/Al_2O_3 catalysts prepared b two ways 9impregnation of a sol-gel alumina and complete sol-gel synthesis)

摘要

Co-Mo-Al_2O_3 catalysts obtained by impregnation of a sol-gel (SG) alumina or by Co and Mo introduction during the S-G procedure are compared with an industrial catalyst. Due to the presence of weakly sulfidable oxides, the samples entirely prepared by the S-G procedure have not improved conversions for HDS unlike the impregnated ones which particular texture permited high HDS conversion of thiophene.