Patent ID: 8680162

Claim:
A process for regenerating a spent particulate wax-containing cobalt-based Fischer-Tropsch synthesis catalyst, which process includes subjecting the spent wax-containing catalyst sequentially to (i) a dewaxing treatment during which the spent wax-containing catalyst is at least partially dewaxed, with dewaxed catalyst particles being produced; (ii) an oxidation treatment which comprises passing an oxygen-containing gas through a bed of the dewaxed catalyst particles at an operating temperature T° C. where 150<T<450, and controlling the operating temperature by removing heat from the catalyst particle bed using a cooling device comprising cooling medium passage means and a cooling medium passing through the passage means, thereby providing heat transfer surfaces located in and/or around the catalyst bed, to obtain oxidized catalyst particles; and (iii) a reduction treatment which comprises reducing the oxidized catalyst particles, thereby regenerating the catalyst.