| abstract |
The subject of the present invention is a process for off-site regeneration of a solid catalyst, comprising two consecutive steps: a first step of washing the catalyst by means of one or more fluid (s) in the supercritical state, so as to extracting from the catalyst at least a portion of the hydrocarbons present on the surface thereof, followed by a second step of heat treatment of the catalyst, in the presence of oxygen and at a temperature ranging from 300 ° C to 600 ° C, so as to cause the combustion of at least a portion of the coke present on the surface of said catalyst. |