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RECORD NUMBER: 29 OF 39

OLS Field Name OLS Field Data
Main Title Mechanism of NOx formation and control : alternative and petroleum-derived liquid fuels /
Author England, G. C. ; Heap, M. P. ; Pershing, D. W. ; Nihart, R. K.
Other Authors
Author Title of a Work
Heap, M. P.
Pershing, D. W.
Nihart, R. K.
Martin, G. B.
CORP Author Energy and Environmental Research Corp., Santa Ana, CA.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory,
Year Published 1981
Report Number PB83-117069; EPA-600/D-82-344; EPA-68-02-3125
Stock Number PB83-117069
OCLC Number 758891316
Subjects Coal--Combustion--Environmental aspects--Congresses. ; Nitrogen oxides--Congresses. ; Coal--Combustion--Environmental aspects. ; Gases--Purification. ; Nitrogen oxides. ; Air--Pollution. ; Liquid fuels--Environmental aspects.
Additional Subjects Air pollution control ; Nitrogen oxides ; Fossil fuels ; Industrial wastes ; Combustion products ; Petroleum products ; Coal ; Shale ; Furnaces ; Concentration(Composition) ; Chemical reaction mechanisms
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100XWVY.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELCD  EPA 600-D-82-344 NVFEL Library/Ann Arbor, MI 10/31/2011
NTIS  PB83-117069 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation pp. 163-174 : ill., charts ; 28 cm.
Abstract
The paper gives results of burning petroleum-, coal-, and shale-derived liquid fuels in a downfired tunnel furnace to assess the impact of fuel properties on the formation and control of NOx emissions. A nitrogen-free oxidant mixture (Ar, CO2, O2) was used to isolate fuel NOx formation. Under excess air conditions, fuel NOx correlated well with total fuel nitrogen content for both the petroleum and alternate fuels. Under staged combustion conditions, the influence of fuel nitrogen content was much less pronounced but equally highly correlated except for coal-derived liquid. Exhaust NOx emissions were directly related to the amount of oxidizable nitrogen species leaving the first stage. NO, HCN, and NH3 concentrations were measured in the fuel-rich zone of the staged combustor as a function of stoichiometry for seven liquid fuels and one CH4/NH3 mixture. Similar characteristics were observed for all liquid fuels. As the first stage stoichiometry (SR1) was reduced, NO concentrations at the first stage exit decreased; however, below SR1 = 0.8, HCN and NH3 concentrations increased. Thus, the total fixed nitrogen (TFN = NO + HCN + NH3) concentration passed through a minimum. Experimental data also indicated that increasing the temperature of the fuel-rich zone decreased TFN concentration which resulted in reduced exhaust NOx emissions.
Notes
Includes bibliographical references (p. 173-174). Paper was originally published in Eighteenth Symposium (International) on Combustion presented by the Combustion Institute in 1981. "PB83-117069." "EPA-600/D-82-344."
Contents Notes
This paper gives results of burning petroleum-, coal-, and shale-derived liquid fuels in a downfired tunnel furnace to assess the impact of fuel properties on the formation and control of NOx emissions. A nitrogen-free oxidant mixture (Ar, CO2, O2) was used to isolate fuel NOx formation. Under excess air conditions, fuel NOx correlated well with total fuel nitrogen content for both the petroleum and alternate fuels. Under staged combustion conditions, the influence of fuel nitrogen content was much less pronounced but equally highly correlated except for coal-derived liquid. Exhaust NOx emissions were directly related to the amount of oxidizable nitrogen species leaving the first stage. NO, HCN, and NH3 concentrations were measured in the fuel-rich zone of the staged combustor as a function of stoichiometry for seven liquid fuels and one CH4/NH3 mixture. Similar characteristics were observed for all liquid fuels. As the first stage stoichiometry (SRI) was reduced, NO concentrations at the first stage decreased; however, below SRI=0.8, HCN and NH3 concentrations increased. Thus, the total fixed nitrogen (TFN=NO+HCN+NH3) concentration passed through a minimum. Experimental data also indicated that increasing the temperature of the fuel-rich zone decreased TFN concentration which resulted in reduced exhaust NOx emissions.