Process and apparatus for the thermal decomposition of nitrous oxide
AssigneeNalco Fuel Tech
InventorsJohn E. Hofmann, William H. Sun
Life of this patent
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Abstract
A process and apparatus is presented for the reduction of nitrous oxide in the effluent from the combustion of a carbonaceous fuel. The process comprises raising the temperature of the effluent to a temperature of at least about 1700.degree. F. The apparatus utilized is a heating means which is disposed in a boiler at a location where the effluent is at a temperature of less than about 1700.degree. F.
Claims17
A process for the reduction of nitrous oxide in the effluent from the combustion of a carbonaceous fuel, the process comprising:
- a) forming an effluent in a circulating fluidized bed boiler;
- and
- b) raising the temperature of said effluent to a temperature of at least about 1700.degree. F., when said effluent is at a temperature below about 1700.degree. F.
A boiler consisting of a circulating fluidized bed boiler comprising an effluent flow path in which is disposed a heating means for raising the effluent temperature to at least about 1700.degree. F., said heating means located where the effluent temperature is less than about 1700.degree. F.
Dependencies are inferred from the claim text.