Process for activation of catalysts with a nitrogenous compound and excess thionic compound the catalysts that is obtained and it use in hydroconversion

摘要

The invention relates to a process for the sulfurization of hydroconversion catalysts, whereby said catalyst contains at least one element of group VIII of the periodic table and optionally an element of group VI, whereby said metal is present in the oxide state. Said process comprises at least one stage that is carried out in a hydrotreatment zone in the presence of at least one thionic compound and at least one nitrogenous compound. This process is carried out in such a way that before the final sulfurization temperature is reached, at least 130% of the stoichiometric amount of sulfur that is necessary for complete sulfurization of the catalyst is injected in said catalyst.