Combination apparatus
AssigneeThe BOC Group, Inc.
InventorStephen R. Graville
Life of this patent
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Abstract
A combustion apparatus includes a moderator gas supply which is added to the fuel to be combusted by concurrent injection to form an intimate admixture as it enters the combustion chamber. Such intimate mixture facilitates a high degree of temperature control within the combustion zone of the flame itself, thereby protecting combustion components and at least reducing or eliminating the formation of thermal NO.sub.x.
Claims12
In a method for the combustion of fuels in a combustion chamber comprises the steps of creating a stream of fuel in the combustion chamber containing a burner, directing an oxidant gas at said stream to oxidize said fuel and igniting said fuel to form a flame, in which a moderator gas is injected into the combustion chamber to lower the combustion temperature of the combustion zone of said flame by dissociation through endothermic reaction of components of said moderator and then re-association through exothermic reaction in a downstream region of said flame, the improvement wherein the moderator gas is concurrently injected with the fuel so as to form an intimate admixture as the fuel exits the burner.
A combustion apparatus for substantially complete combustion of fuels comprising a combustion chamber, a burner comprising a fuel inlet for creating a stream of fuel within said combustion chamber, first supply means for supplying a moderator gas characterized by admixing means for concurrent injection of said moderator gas and said fuel thereby forming an intimate admixture thereof as the fuel enters the combustion chamber, second supply means for supplying an oxidizing gas to said combustion chamber, and ignition means for igniting said fuel/moderator/oxidant mixture thereby creating a flame, whereby the intimate admixture of the moderator gas and the fuel controls the temperature of the flame at the combustion zone thereof.
Dependencies are inferred from the claim text.