We investigate in this article the use of reduction techniques in air pollution modeling. The reduction of chemical kinetics is performed on the basis of a timescale analysis and of lumping. Lumping techniques are widely used in air pollution modeling and consist of replacing some pure chemical spec
Modeling of chemical reactions in afterburning for the reduction of N2O
β Scribed by Lennart Gustavsson; Peter Glarborg; Bo Leckner
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 1016 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0010-2180
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β¦ Synopsis
Afterburning involves burning a secondary fuel in the flue gases from a fluidized bed combustor to raise the temperature, and thereby decrease the emission of N20. Tests in a 12-MW circulating fluidized bed boiler used the cyclone as an afterburning combustor. The results from these tests are analyzed by chemical kinetic calculations with homogeneous hydrocarbon and nitrogen chemistry. Furthermore, a study is made of the infuence on the calculation of particles in the flue gases. The deviation between calculated and measured data is small at high temperatures, but increases at the lower temperatures investigated. The influence of particles is predicted to be small under conditions prevailing in the cyclone.
NOMENCLATURE * Corresponding author,
emission is shown as a function of cyclone
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