EXHAUSTED CATALYST REGENERATION PROCESS AND REGENERATOR TO CARRY OUT THE PROCESS Russian patent published in 2006 - IPC B01J8/26 

FIELD: catalyst regeneration processes.

SUBSTANCE: process comprises introducing catalyst into dense fluidized bed maintained in reactor at catalyst density 300 to 900 kg/m³, passing mixture of exhausted and regenerated catalysts from dense fluidized bed to fast fluidized bed formed in regenerator reactor, making the mixture contact oxidizing gas in fast, more rarefied fluidized bed at catalyst density 50 to 400 kg/m³, and obtaining regenerated catalyst from more rarefied fluidized bed. A portion of regenerated catalyst is discharged from regenerator while the rest of regenerated catalyst is recycled into dense fluidized bed. Regenerator and a method for updating it are also claimed.

EFFECT: enhanced process efficiency.

6 cl, 5 dwg