Evaluation of internally staged coal burners and sorbent-jet aerodynamics for combined SO sub 2 /NOx control in utility boilers. Volume 2. Testing in a 100 million btu/hr experimental furnace. Final report, November 1984-June 1985
The report gives results of tests on a 100 million Btu/hr (29 MWt) experimental furnace to explore methods for achieving effective SO{sub 2} removal in a coal-fired utility boiler using calcium-based sorbents, through appropriate selection of injection location and injector design/operating parameters. Methods were also tested to reduce NOx emissions from the coal burners without external air ports (i.e., with internal fuel/air staging). Sorbent jet testing showed that, through cold modeling, injection locations and velocities could be selected which avoided recirculation of the sorbent into the burner zone (hence dead burning). At the best conditions, SO{sub 2} removals at Ca/S = 2 were 30-40% with finely ground limestone, 45-50% with dolomite, and 60% with pressure-hydrated dolomitic lime. Limited testing of burner modifications to achieve internal staging resulted in about a 35% reduction in NOx, through use of coal splitters.
- Research Organization:
- Energy and Environmental Research Corp., Irvine, CA (USA)
- OSTI ID:
- 5268101
- Report Number(s):
- PB-90-108846/XAB
- Resource Relation:
- Other Information: See also Volume 1, PB--89-207955
- Country of Publication:
- United States
- Language:
- English
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