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US 5,022,332 AGranted
Combustion method for improved endothermic dissociation
AssigneeUnion Carbide Industrial Gases Technology Corporation
InventorMaynard G. Ding
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Abstract
A method for endothermically dissociating contaminated acid wherein high velocity oxidant causes a recirculation flow within a combustion zone and combusts with fuel to release heat and wherein the heat is efficiently applied by the internal recirculation to the acid for endothermic dissociation of the acid.
Claims19
A method for treating contaminated acid comprising:
- (a) providing fuel into a combustion zone and, spaced therefrom, providing oxidant into the combustion zone, said oxidant having an oxygen contratoin of at least 25 percent and a velocity sufficient to cause a recirculation flow within the combustion zone;
- (b) combusting fuel and oxidant within the combustion zone to produce heat and to form combustion reaction products;
- (c) providing acid to the combustion zone and applying heat from the combustion zone to the acid to endothermically dissociate the acid to produce an oxygen-containing dissociation product;
- and
- (d) recirculating combustion reaction products within the recirculation flow into the combustion reaction of the oxidant and fuel to dilute the combustion reaction and thus carry out the combustion reaction at a lower peak flame temperature, and to enhance the application of heat to the acid for the endothermic dissociation.
2 more elements
Dependencies are inferred from the claim text.