Patent ID: 8137535
Filing Date: 2012-03-20
Classification: B01J,C07C,C10G,Y02P

Abstract:
1. A method for doping hydrocarbon cracking catalyst, comprising: fluidizing one or more coked-catalyst particles in the presence of one or more oxidants to provide a fluidized mixture; removing at least a portion of the coke from the one or more coked-catalyst particles to provide regenerated catalyst particles within the fluidized mixture; distributing one or more doping agents to the fluidized mixture; depositing the one or more doping agents onto a surface of the regenerated catalyst particles to provide one or more doped catalyst particles; and cracking a hydrocarbon feed in the presence of the one or more doped catalyst particles to provide a hydrocarbon product, wherein; wherein the one or more doping agents comprise gallium and at least one of magnesium, barium, ruthenium, rhodium, and palladium.