Patent ID: 8454351

Claim:
A fuel combustion method in which at least one fuel and at least two oxidants are injected: a) at least one first oxidant being injected at a distance I 1 of at most 20 cm from the fuel injection point, b) at least one second oxidant being injected at a distance I 2 from the fuel injection point, I 2 being greater than I 1 , the oxidants being injected in quantities such that the sum of their quantities is at least equal to the stoichiometric quantity of oxidant necessary to ensure the combustion of the injected fuel, wherein the first oxidant is oxygen-enriched air having a temperature of at most 200° C. and in that the second oxidant is air preheated to a temperature of at least 300° C., wherein the first oxidant is not preheated, wherein at least two first oxidants are injected at a distance I 1 of at most 20 cm, one, called primary, being injected in a mixture with the fuel and the other, called secondary, being injected at a distance from the fuel.