Process for the off site regeneration of solid catalysts
AssigneeEurecat S.A.
InventorsPhilippe Kerleau, Pierre Dufresne
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Abstract
The invention provides a process for the off site regeneration of a solid catalyst, comprising two consecutive steps: a first step of washing the catalyst using one or more fluid(s) in the supercritical state, so as to extract from the catalyst at least a portion of the hydrocarbons present at the surface of the latter, followed by a second step of combustion of at least a portion of the coke present at the surface of the said catalyst by a heat treatment of the latter in the presence of oxygen and at a temperature ranging from 300° C. to 600° C.
Claims20
A process for the off site regeneration of a solid catalyst, comprising the following two consecutive steps:
- a first step of washing the catalyst using a fluid in the supercritical state, so as to extract from the catalyst at least a portion of the hydrocarbons present at the surface of the latter, followed by
- a second step of combustion of at least a portion of the coke present at the surface of the catalyst by a heat treatment of the latter in the presence of oxygen and at a temperature ranging from 300° C. to 600° C., wherein said fluid in the supercritical state is carbon dioxide comprising water.
A process for the off site regeneration of a solid catalyst, comprising the following two consecutive steps:
- a first step of washing the catalyst using one or more fluids in the supercritical state, so as to extract from the catalyst at least a portion of the hydrocarbons present at the surface of the latter, followed by
- a second step of combustion of at least a portion of the coke present at the surface of the catalyst by a heat treatment of the latter in the presence of oxygen and at a temperature ranging from 300° C. to 600° C., wherein at least one of said fluids in the supercritical state is water.
Dependencies are inferred from the claim text.