Record Display for the EPA National Library Catalog


Main Title Evaluation of Internally Staged Coal Burners and Sorbent Jet Aerodynamics for Combined SO2/NOx Control in Utility Boilers. Volume 2. Testing in a 100 Million Btu/hr Experimental Furnace.
Author Cetegen, B. M. ; Clough, J. ; England, G. C. ; Johnson, T. R. ; Kwan, Y. ;
CORP Author Energy and Environmental Research Corp., Irvine, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Sep 89
Year Published 1989
Report Number EPA-68-02-3923; EPA/600/7-89/009;
Stock Number PB90-108846
Additional Subjects Sulfur dioxide ; Nitrogen oxides ; Sorbents ; Air pollution control ; Aerodynamics ; Experimental design ; Boilers ; Performance evaluation ; Design criteria ; Limestone ; Calcium oxides ; Limestone injection multistage burners
Library Call Number Additional Info Location Last
NTIS  PB90-108846 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 133p
The report gives results of tests on a 100 million Btu/hr (29 MWt) experimental furnace to explore methods for achieving effective SO2 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 modelling, injection locations and velocities could be selected which avoided recirculation of the sorbent into the burner zone (hence dead-burning). At the best conditions, SO2 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.