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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 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 30p
Abstract 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.
PUB Date Free Form Oct 85
Category Codes 7D; 21B; 68A; 99F; 81A
NTIS Prices PC A03/MF A01
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 601717401
Origin NTIS
Type CAT