Ni-Mo Catalyst Synthesized by Mechanical Alloying

摘要

Raney-type Ni-Mo-based catalysts were produced using mechanically alloyed Ni-Mo-Al powders, followed by an alkaline leaching process. Aluminum is removed in the latter process to induce large surface area (SA) values. Synthesized catalysts were found highly actives due to their nanocrystalline nature synergized by its large surface area. The catalysts produced by this route presented good selectivity for the hydrodesulphurization (HDS) reaction in dibenzothiophene (DBT). Catalysts showed larger reaction constant values than its commercial counterparts. The temperature and leaching time have an important effect in the catalytic activity.