Nitrogen oxide (NOx) emission reduction in an oxy-combustion furnace
AssigneeVitro Flat Glass LLC
InventorsJeffrey S. Yigdall, James W. McCamy
Life of this patent
Estimating the term…
Abstract
A plant for a combustion process. The plant has a furnace to heat a material. A burner is configured to combust a carbon-based fuel with an oxidization gas to provide a flame into the furnace. The oxidization gas has at least 80 volume percent oxygen. The furnace has an exhaust outlet providing communication between the furnace and a flue. The exhaust outlet is configured to remove an exhaust gas produced during the combustion of the carbon-based fuel from the furnace to the flue. A nozzle located in the flue is configured to inject an ammonia in the flue, and thereby reduce the amount of NOx emissions in the exhaust gas.
Claims6
A plant for a combustion process, comprising:
- a furnace to heat a material;
- a plurality of burners configured to combust a carbon-based fuel with an oxidization gas to provide a flame into the furnace, wherein the oxidization gas comprises at least 80 volume percent oxygen;
- a first upstream exhaust outlet providing communication between the furnace and a first flue and configured to remove an exhaust gas produced during the combustion of the carbon-based fuel from the furnace to the first flue;
- a second upstream exhaust outlet providing communication between the furnace and a second flue and configured to remove the exhaust gas from the furnace to the flue;
- a first downstream exhaust outlet providing communication between the furnace and the first flue and configured to remove the exhaust gas from the furnace to the flue;
- a second downstream exhaust outlet providing communication between the furnace and the second flue and configured to remove the exhaust gas from the furnace to the flue;
- a nozzle located in the first flue and configured to inject an ammonia in the flue.
Dependencies are inferred from the claim text.