Patent ID: 7026262
Filing Date: 2006-04-11
Classification: B01J,C10G,F27B

Abstract:
1. A process for the combustion of carbonaceous deposits from catalyst comprising: introducing spent catalyst to a first chamber through a spent catalyst inlet; distributing combustion gas to said first chamber below said spent catalyst inlet at a rate that will preserve a bed of catalyst; distributing combustion gas to said first chamber above said spent catalyst inlet at a rate that when combined with the combustion gas distributed below said spent catalyst inlet will entrain catalyst in the combustion gas, wherein more combustion gas is distributed below said spent catalyst inlet than above said spent catalyst inlet; lifting the catalyst entrained in the combustion gas out an exit in said first chamber and into a second chamber; separating said catalyst from said combustion gas; collecting catalyst in a bed in said second chamber; removing said catalyst from said second chamber; and recovering combustion gas from said second chamber.