Process for combustion in an industrial furnace
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsSophie Drogue, Olivier Charon, Eric Duchateau
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Abstract
A process for combustion in an industrial furnace (1), using at least one burner (2; 3) supplied with combustible (4) and combustion supporting (5) fluids. The flow rate of at least one of the fluids is pulsed at a frequency comprised between 0.1 and 3 Hz. There is provided in the furnace (1) at least one pair of two burners (2A, 2B; 3A, 3B) disposed substantially confronting each other; and the fluid of the burners of a pair is pulsed in offset phase from one burner to the other. The frequency of pulsation is between 0.1 and 1 Hz. The flow rates of fluids are substantially identical for each burner (2A, 2B; 3A, 3B) of the pair. The power of the pair of burners is greater than 300 KW.
Claims6
A combustion method for a furnace, comprising:
- providing at least one pair of burners each supplied with a combustible fluid and an oxidant fluid;
- arranging the burners of the pair in the furnace substantially in facing relationship;
- and
- pulsing at least one of said fluids of each burner at a frequency between 0.1 and 3 Hz, the pulsation of a burner of a pair being phase offset from the other burner of the pair.
Dependencies are inferred from the claim text.