Method and device for chemical loop combustion of liquid hydrocarbon feedstocks

A device for chemical looping redox combustion of a liquid hydrocarbon feed carried out in a fluidized bed, comprising:

• a first reaction zone for partial vaporization of a hydrocarbon liquid feed and the coke deposit on a hot solid in form of particles, including:
• hydrocarbon liquid feed injection means,
• means for feeding said solid, and
• fluidization gas injection means;
• a second reaction zone for gasification of the coke of the solid particles and for combustion of the partly vaporized liquid feed and of the gas resulting from coke gasification, arranged downstream from the first reaction zone and comprising means for feeding a redox active mass in form of particles distinct from the hot solid,
• a third reaction zone for completing the combustion of the partly vaporized liquid feed and/or of the gas resulting from coke gasification,
• a separation zone for separating within a mixture from the third reaction zone the major part of the redox active mass particles and a gas stream containing the major part of the solid particles, including:
• a delivery line for said mixture,
• a discharge line for the redox active mass particles, and
• an outlet line for the gas stream containing the major part of the solid particles,
• a fourth reaction zone for reoxidation of the redox active mass particles from the separation zone, including:
• means for feeding redox active mass particles from the separation zone,
• means for injecting an oxidation gas, and
• means for discharging a gas stream containing reoxidized redox active mass particles.