Patent ID: 11913640
Assignee: IFP ENERGIES NOUVELLES
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 9:
10. A method for chemical looping combustion using a solid fuel generating unburnt particles, which employs oxygen carrier particles, such as metal oxides, and employs a device for chemical looping combustion as claimed in claim 1, wherein the following steps are carried out:
a) a gaseous mixture from the combustion zone, comprising particles and combustion gases, is admitted to the chamber of the particle separator by means of at least one intake duct;
b) the lightest particles, consisting predominantly of the unburnt particles, are extracted via an outlet in the upper part of the chamber, and the heaviest particles, consisting predominantly of the oxygen carrier particles, are discharged via the discharge duct in the lower part of the chamber;
c) a gaseous stream comprising the light unburnt particles extracted via the outlet duct in the upper part of the chamber are sent to the gas-solid separator;
d) a gas depleted in unburnt particles is discharged from the gas-solid separator via a duct; and
e) the unburnt particles separated in the gas-solid separator are recycled to the combustion zone via a communication duct.