Patent ID: 8771549
Filing Date: 2014-07-08
Classification: C10J,F23C,Y02E

Abstract:
1. A chemical looping combustion method for at least one hydrocarbon feed in at least one distinct fluidized bed reduction reaction zone (i) and at least one distinct fluidized bed oxidation reaction zone (i+1), wherein the circulation of the solid particles of active mass between each or part of the reaction zones is controlled by means of one or more non-mechanical valves consisting each of a substantially vertical line portion, a substantially horizontal line portion and an elbow connecting the two portions, by transporting the solid particles between two successive reaction zones by: introducing solid particles coming from reaction zone (i) or (i+1) through the upper end of the substantially vertical line portion of said valve, injecting a control gas with a given aeration flow rate upstream from the elbow of said valve, controlling the differential pressure conditions at the terminals of the non-mechanical valve(s) so as to adjust the flow rate of the solid particles in the substantially horizontal line portion of said valve, according to the aeration flow rate, feeding into the successive reaction zones (i+1) or (i) of the loop the solid particles leaving the non-mechanical valve(s).