Actions for Pollutant control through staged combustion of pulverized coal. Technical progress report, January--April 1978

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Pollutant control through staged combustion of pulverized coal. Technical progress report, January--April 1978

Author
Wendt, J. O. L.
Published
United States : [publisher not identified], 1978.
Springfield, Va. : National Technical Information Service, [approximately 1978]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Glass, J. W. and Lee, J. W.

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Summary
A 2Kg/h pulverized-fuel, plane-flame combustor was used to determine time-resolved NO profiles under fuel-rich and staged combustion conditions. Seven solid fuels, including two coal chars, were investigated. Results show that at all fuel-rich conditions NO is formed rapidly and then is slowly destroyed. The peak NO value and the rate of destruction are strong functions of coal composition and stoichiometry. Under staged combustion conditions, NO may increase or decrease at the staging point depending on the fuel and on the quantity of NO formed in the first stage. Use of artificial oxidants confirmed that the NO formed in the first and second stages consisted of fuel NO. Heterogeneous formation and reduction of NO during char combustion was modeled by a two-reaction scheme. Heterogeneous reduction was less than first order in NO and had an activation energy of 47 kcal/mole. The roles of devolatilization and homogeneous reactions are discussed in the light of the data presented.
Report Numbers
FE-1817-5
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: EX-76-C-01-1817
OSTI Identifier 6317260
Research organization: Arizona Univ., Tucson (USA). Coll. of Mines.
View MARC record | catkey: 45334248