Combustion Inhibition Physico Chemistry of Coal-Derived Syngas Air Flames

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Title Combustion Inhibition Physico Chemistry of Coal-Derived Syngas Air Flames
Creator Daley, R. D.; Withum, J. A.; Warchol, J. J.; Reuther, J. J.
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1981
Spatial Coverage Chicago, Illinois
Abstract The first results of a comprehensive and systematic experimental program on low-Btu coal-derived syngas/air combustion, underway at The Pennsylvania State University Fuels and Combustion Laboratory, are reported. Gaseous fuels [CH,, CO, H2, NH ] and diluents [CO , N , H O ] were parametrically mixed together, simulating the compositions of near-commercial, coal-derived syngases. The physical [temperature] and chemical [transient and stable species concentrations] microstructure profiles of over 50 non-adiabatic flat Lurgi- and Wellman-Galusha-air flames were determined. From an appliedcombustion research viewpoint, the most significant findings were that: (a) the fuel-bound-nitrogen (FBN=NH«) conversion efficiency, and, therefore, the concentration of NO in the exhaust, maximized at a stoichiometry (equivalence ratio) of 1.2 for both syngas/air flames, and (b) at the same FBN dopinglevel, more NO was produced in Lurgi/air flames than in Wellman-Galusha/air flames. These findings may have an important bearing on: (a) staged-combustion-for-NOX-control-strategies which are based on results from combustion research on flames fueled with individual syngas components that showed the FBN conversion efficiency peaking at stoichiometries of *k 1.0, and (b) coal-derived syngas fuel, and therefore, coal-gasifier, selection, respectively.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
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ARK ark:/87278/s6m90c7w
Setname uu_afrc
ID 1297
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