Patent ID: 8618011

Claim:
A method for regenerating coked catalyst particles, comprising: heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon and coked catalyst particles, wherein the coked catalyst particles include carbon deposited on at least a portion thereof; selectively separating the cracked hydrocarbon and the coked catalyst particles to provide a hydrocarbon product and coked catalyst particles; mixing the coked catalyst particles with a carrier fluid to provide a mixture; introducing the mixture to a dilute phase catalyst zone disposed within a regenerator; distributing the mixture of the dilute phase catalyst zone onto an upper surface of a dense phase catalyst zone disposed within the regenerator; introducing a gas to a lower zone of the dense phase catalyst zone; and combusting at least a portion of the carbon deposited on the coked catalyst particles to provide a flue gas, heat, and a regenerated catalyst.