Patent ID: 7285205
Filing Date: 2007-10-23
Classification: B01J,C10G

Abstract:
1. In a regenerative reforming process for treatment of hydrocarbon fractions comprising a series of at least two reactors forming a reaction zone, wherein feedstock and intermediate effluents pass through the reactors in succession and each reactor operates as a moving bed, the process having a regeneration zone for eliminating coke deposited on the catalyst during reactions, the improvement comprising passing coked catalysts of the same chemical type but having different amounts of coke from the outlet of said at least two reactors to a common mixing zone and homogenizing said coked catalysts so as to provide a mean coke concentration, and passing the resultant homogenized catalysts to said regeneration zone, and passing the resultant regenerated catalysts obtained from said regeneration zone directly to a common distribution zone and distributing the regenerated catalysts from said common distribution zone to said at least two reactors, and further comprising a source of air for operating instruments and employing a portion of the instrument air, for the combustion of the coke deposited on the catalyst in the regeneration zone.