Inexpensive solutions can beat the NO{sub x} emissions rap
This article reports that complying with EPA regulations doesn`t have to be expensive or complicated if plant operators first investigate practical NO{sub x}-reduction techniques. Utilities today struggle to balance environmentally and economically responsible solutions to the Environmental Protection Agency`s (EPA) NO{sub x} regulations. Typical responses include low-NO{sub x} burners, overfire air (OFA) and post-combustion techniques, which can vary in cost from about $8/kWh to $25/kWh. Before resorting to expensive and complicated solutions, it may be prudent to consider practical and inexpensive measures that can reduce NO{sub x} emissions and control unburned carbon losses. Unlike the more traditional NO{sub x} reduction techniques, the approach discussed here can also provide significant improvements in other aspects of unit performance, such as tube metal temperature profile, slagging, burner eyebrows and improved boiler efficiency via reduced carbon losses. All of this may be possible, depending upon the particular unit, while achieving minor to moderate NO{sub x} reduction.
- OSTI ID:
- 413337
- Journal Information:
- Power Engineering (Barrington), Vol. 100, Issue 12; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Utilization of computational fluid dynamics technique in low NOx burner/furnace retrofits
Anthracite firing at central power stations for the 21st century