Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Fuel Oil Reburning Application for NOx Control to Firetube Package Boilers.
Author Mulholland, J. A. ; Hall, R. E. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1985
Report Number EPA/600/D-85/262;
Stock Number PB86-118825
Additional Subjects Air pollution control ; Fuel oil ; Nitrogen oxides ; Firetube boilers ; Pilot plants ; Industrial wastes ; Combustion products ; Oxidation reduction reactions ; Reaction kinetics ; Flammability tests ; Reburning processes ; Combustion modification ; Chemical reaction mechanisms ; Stationary sources
Library Call Number Additional Info Location Last
NTIS  PB86-118825 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 30p
The paper discusses retrofitting two 1.0 MW (3.5 million Btu/hr) firetube package boilers for fuel oil reburning application for NOx emission control. An overall NOx reduction of 46% from an uncontrolled emission of 125 ppm (dry, at 0% O2) was realized by diverting 20% of the total boiler load to a distillate-fuel-oil-fired second stage burner; a 51% NOx reduction from 265 ppm was achieved in a distillate/residual fuel oil mixture (0.14% nitrogen content) reburning application. Nitrogen-free fuel oil reburning was found to be slightly more effective at reducing NOx than natural gas reburning, although longer fuel-rich zone residence times were required to allow for evaporation and mixing of the fuel oil droplets. The key parameters investigated, that impact the reburning process, were: primary flame NOx, reburn zone stoichiometry, and reburn zone residence time. Reburning applied to firetube package boilers requires minimal facility modification.