The application of RANS CFD for design of SNCR technology for a pulverized coal-fired boiler

The article describes the technology of NO emission abatement by SNCR method. The scope of research included CDF simulations as well as design and construction of the pilot plant and tests of NO reduction by urea in the plant located in industrial pulverized-coal fired boiler. The key step of resear...

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Bibliographic Details
Published in:Polish journal of chemical technology 2017-06, Vol.19 (2), p.101-106
Main Authors: Ruszak, Monika, Inger, Marek, Wilk, Marcin, Nieścioruk, Jan, Saramok, Magdalena, Kowalik, Wojciech, Rajewski, Jakub, Wajman, Tomasz, Kacprzak, Wojciech, Tadasiewicz, Dariusz
Format: Article
Language:English
Subjects:
Boilers
Combustion chambers
emission abatement
flue gas treatment
Lances
nox emission abatement
Pollution abatement
power plant boilers
Pulverized coal
Reduction
selective non-catalytic reduction
Well construction
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Summary:The article describes the technology of NO emission abatement by SNCR method. The scope of research included CDF simulations as well as design and construction of the pilot plant and tests of NO reduction by urea in the plant located in industrial pulverized-coal fired boiler. The key step of research was to determine the appropriate temperature window for the SNCR process. The proposed solution of the location of injection lances in the combustion chamber enabled to achieve over a 30% reduction of NO . It is possible to achieve higher effectiveness of the proposed SNCR technology and meet the required emission standards via providing prior reduction of NO to the level of 350 mg/um using the primary methods.
ISSN:1899-4741
1509-8117
1899-4741
DOI:10.1515/pjct-2017-0035