Patent ID: 11918982
Assignee: IFP ENERGIES NOUVELLES
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A process comprising rejuvenating an at least partially spent catalyst resulting from a hydrotreating process, said at least partially spent catalyst resulting from a fresh catalyst comprising at least one metal from group VIII, at least one metal from group VIb, an oxide support, and optionally phosphorus, said at least partially spent catalyst being a non-regenerated at least partially spent catalyst which has not undergone a regeneration state after use in the hydrotreating process and additionally comprising carbon in a content of 2% to 20% by weight, with respect to the total weight of the at least partially spent catalyst, and sulfur in a content of 1% to 8% by weight, with respect to the total weight of the at least partially spent catalyst, said process comprising:
a) contacting said at least partially spent catalyst with an impregnation solution containing a compound comprising a metal from group VIb,
b) drying at a temperature of less than 200° C. so as to obtain a rejuvenated catalyst, without subsequent calcination.