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US 8,314,043 B2Granted
Process for the regeneration of a Fischer-Tropsch catalyst
AssigneeEvonik Degussa GmbH
InventorsHermanus Gerhardus Jozef Lansink Rotgerink, Claus Rehren, Dietrich Maschmeyer
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Abstract
A process is disclosed for the regeneration of a deactivated wax covered Fischer-Tropsch catalyst, a pumpable suspension of deactivated catalyst being injected into a hot gas stream and the regenerated catalyst then being separated off from the gas stream, optionally further treated by calcination and/or reduction.
Claims11
A process for the regeneration of a deactivated, wax covered cobalt-containing Fischer-Tropsch catalyst, comprising:
- injecting a pumpable liquid suspension of a deactivated wax covered Fischer-Tropsch catalyst into an oxygen-containing gas stream at from 600° C. to 1050° C. to regenerate said catalyst, and
- separating off the regenerated catalyst from the gas stream,
- wherein the residence time of said deactivated catalyst in said gas stream is from 0.01 to 10 sec.
Dependencies are inferred from the claim text.