Slurry catalyst rejuvenation in-situ in slurry reactor

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 8/22 (2006.01) B01J 8/00 (2006.01) B01J 38/48 (2006.01) B01J 38/58 (2006.01) C07C 1/04 (2006.01) C10G 2/00 (2006.01)

Patent

CA 2439302

A process for rejuvenating reversibly deactivated catalyst particles in a three-phase slurry body (22) of gas bubbles and catalyst particles in a slurry liquid, includes passing slurry from the top down to the bottom of the body through a slurry catalyst rejuvenating means (14). The slurry is sequentially passed through a first gas bubble reducing zone (55), a catalyst rejuvenating gas contacting zone, a second gas bubble reducing zone (62) and then a downcomer transfer zone (40). The gas bubble reducing, contacting and at least a portion of transfer occur in slurry body. At least part of the means is in the slurry body.

L'invention concerne un procédé de régénération de particules de catalyseurs désactivées de manière réversible dans un corps (22), formant bouillie liquide à trois phases, de bulles gazeuses et de particules de catalyseurs . Ce procédé consiste à faire passer la bouillie liquide depuis le sommet jusqu'au bas du corps dans un moyen de régénération (14) de catalyseurs. La bouillie liquide se compose d'une zone de contact avec les gaz, d'une deuxième zone de réduction des bulles de gaz (55), d'une zone de mise en contact avec les gaz de régénération des catalyseurs, d'une zone de réduction (62) des bulles de gaz et ensuite d'une zone de transfert (40) de trop-plein. La partie de réduction des bulles de gaz, de mise en contact et au moins une partie de transfert se produit dans le corps de bouillie. Une partie des moyens de régénération se trouvent dans le corps de bouillie liquide.

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