CATALYST BASED ON A C5 OR C6 ACID ESTER AND ITS USE IN A HYDROPROCESSING AND / OR HYDROCRACKING PROCESS

摘要

The subject of the invention is a catalyst comprising a support based on alumina or silica or silica-alumina, at least one element from group VIII, at least one element from group VIB and at least one compound of ester type. a C5 or C6 acid and additionally containing a chemical function of ketone type, the two functions being distant from 1 or 3 carbon atoms from one another. The invention also relates to the process for the preparation of said catalyst and its use in a hydrotreatment and / or hydrocracking process.