Nitrogen oxide formation during fluidized bed combustion of coals and shales / Munts V.A., Munts Yu.G., Baskakov A.P., Pavlyuk E.Yu. // Power Technology and Engineering. - 2014. - V. 48, l. 1. - P. 34-41.

ISSN:
1570145X
Type:
Article
Abstract:
Experimental data are presented on the time dependence of nitrogen oxide formation during combustion of batches of various fuels in fluidized beds. It is shown that the formation of nitrogen oxides takes place both in the stage where coke residue is burnt and in the stage where volatile substances are burnt. The nitrogen in the coke residue is oxidized by a heterogeneous mechanism similar to that by which carbon is burnt; the extent to which it is converted into oxides under oxidizing conditions depends on the ratio of the oxidation rate constants for nitrogen and carbon. The formation of nitrogen oxides during combustion of the volatiles is described adequately by the overall gaseous phase equilibrium of the reaction. Amethod for calculating the NOx yield along the height of a fluidized bed furnace is developed on the basis of the mechanisms found for nitrogen oxide formation during the different stages of combustion of the fuel particles. © 2014 Springer Science + Business Media New York.
Author keywords:
Coals; Coke residue; Combustion; Fluidized bed; Nitrogen oxides; Shales; Volatiles
Index keywords:
Carbon; Coal; Coal combustion; Combustion; Fluidized beds; Nitrogen; Nitrogen oxides; Rate constants; Shale; Different stages; Formation of nitrogen oxides; Oxidation rates; Oxide formation; Oxidizing
DOI:
10.1007/s10749-014-0479-9
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902204780&doi=10.1007%2fs10749-014-0479-9&partnerID=40&md5=f32a6bef729b794c070b9556d5d5107f
Соавторы в МНС:
Другие поля
Поле Значение
Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902204780&doi=10.1007%2fs10749-014-0479-9&partnerID=40&md5=f32a6bef729b794c070b9556d5d5107f
Affiliations First President of Russia B.N. Eltsin Urals Federal University, Yekaterinburg, Russian Federation
Author Keywords Coals; Coke residue; Combustion; Fluidized bed; Nitrogen oxides; Shales; Volatiles
References Zeldovich, Ya.B., Sadovnikov, P.Ya., Frank-Kamenetskii, D.A., (1947) Oxidation of Nitrogen during Combustion [In Russian], , Nauka, Moscow; Predvoditelev, A.S., Khitrin, L.N., Tsukhanova, O.A., Kolodtsev, Kh.I., Grozdovskii, M.K.M., (1949) The Combustion of Carbon [In Russian], , Izd. AN SSSR, Leningrad; Baskakov, A.P., Filippovskii, N.F., Munts, V.A., Ashikhmin, A.A., Calculation of the temperature of particles burning in a fluidized bed of inert material (1987) Inz.-Fiz. Zh., 52; Munts, V.A., Pavlyuk, E.Yu., Kryukov, M.V., Savkin, A.V., Burning of volatiles in fluidized bed combustion of solid fuels (2012) Élektr. Stantsii, (3), pp. 16-22; De Soete, G.G., Heterogeneous N2O and NO formation from bound nitrogen atoms during coal char combustion (1990) Proc. 23rd Symp. Int. on Combustion, Orleans, France, July 22 - 27; Fenimore, C.P., Formation of nitric oxides from fuel nitrogen in ethylene flames (1972) Combust. Flame, 19 (2); Johnsson, J.E., Amand, L.E., Leckner, B., Modelling of NOx formation in circulating fluidized boilers (1990) Proc. 3rd Int. Conf. on Circulating Fluidized Beds, Nagoya, Japan, October 15 - 18; Roslyakov, P.V., Calculation of the formation of fuel oxides of nitrogen during combustion of nitrogen-containing fuels (1986) Teploénergetika, (1); Hampartsumian, E., Gibbs, B.M., Limiting air pollution from atmospheric fluidized bed combustors (1984) Fluidized Bed Boilers: Design and Application, , P. Basu (ed.), Pergamon Press, Toronto, Canada; Borodulya, V.A., Vinogradov, L.M., (1980) Combustion of Solid Fuels in Pseudo-fluid Layers [in Russian], , Nauka i tekhnika, Minsk; Titov, S.P., Babii, V.I., Barabash, V.M., Study of the formation of NOx from fuel nitrogen during combustion of coal dusts (1980) Teploénergetika, (3)
Publisher Springer New York LLC
Language of Original Document English
Abbreviated Source Title Power Technol. Eng.
Source Scopus