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

• Autorzy: Ruszak M. , Inger M. , Wilk M. , Nieścioruk J. , Saramok M. , Kowalik W. , Rajewski J. , Wajman T. , Kacprzak W. , Tadasiewicz D.

Identyfikatory

DOI

10.1515/pjct-2017-0035

• Języki publikacji: EN

Abstrakty

EN

The article describes the technology of NO_x  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_x  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_x . It is possible to achieve higher effectiveness of the proposed SNCR technology and meet the required emission standards via providing prior reduction of NO_x  to the level of 350 mg/um³ using the primary methods.

Słowa kluczowe

EN

NOx emission abatement; power plant boilers; selective non-catalytic reduction; flue gas treatment

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2017
• Tom: Vol. 19, nr 2
• Strony: 101--106
• Opis fizyczny: bibliogr. 12 poz., rys., tab.

Twórcy

autor

Ruszak M.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Inger M.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Wilk M.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Nieścioruk J.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Saramok M.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Kowalik W.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Rajewski J.

• New Chemical Syntheses Institute, al. Tysiąclecia Państwa Polskiego 13a, 24-110Puławy, Poland

autor

Wajman T.

• Lodz University of Technology, Institute of Turbomachinery, Wólczańska 219/223, 90-924Łódź, Poland

autor

Kacprzak W.

• Grupa Azoty Zakłady Azotowe Puławy SA, al. Tysiąclecia Państwa Polskiego 13, 24-110Puławy, Poland

autor

Tadasiewicz D.

• Grupa Azoty Zakłady Azotowe Puławy SA, al. Tysiąclecia Państwa Polskiego 13, 24-110Puławy, Poland

Bibliografia

• 1. Kim, Ch. & Lior, N. (1998). A numerical analysis of NOx formation and control in radiatively/conductively-stabilized pulverized coal combustors. Chem. Eng. J. 71, 221–231. DOI: 10.1016/j.ces.2015.10.002.
• 2. Official Journal of the European Union. (2010). The Directive 2010/75/EU of the European Parliament and of the Council of 24 November 2010 on industrial emissions (integrated pollution prevention and control).
• 3. Regulation of the Minister of the Environment of 4 November 2014 on the emission standards for certain types of the installations, fuel combustion sources and incineration and co-incineration equipment, DzU 2014, poz. 1546. [in Polish].
• 4. Heck, R.M. (1999). Catalytic abatement of nitrogen oxides – stationary applications. Catal. Today. 53, 519–523. DOI: 10.1016/S0920-5861(99)00139-X.
• 5. Zamorowski, K. (2013). Aspects of the national power industry adaptation to nitric oxides emission standards – influence of applied technologies on boiler operation and on costs of flue gas denitrification. Energetyka 6, 490–497, [in Polish].
• 6. Li, W.B., Yang, X.F., Chen, L.F. & Wang, J.A. (2009). Adsorption/desorption of NOx on MnO2/ZrO2 oxides prepared in reverse microemulsions. Catal. Today 148, 75–80. DOI: 10.1016/j.cattod.2009.03.028.
• 7. Draft Report of the Cadmus Group Inc., Bechtel Power Corporation, and Science Applications International Corporation. (1998). Selective Noncatalytic Reduction for NOx Control on Coal-fired Boilers.
• 8. Mussatti, D.C., Srivastava, R., Hemmer, P.M. & Strait, R. (2001). NOx Control. NOx Post Combustion. Selective Noncatalytic Reduction, EPA/452/B-02-001.
• 9. von der Heide, B. (2010). NOx Reduction for the Future with the SNCR Technology for Medium and Large Combustion Plants, presented at Power Engineering and Environment Conference, 1–3 September 2010. Ostrava, Czech Republic.
• 10. Farcy, B., Vervish, L. & Domingo, P. (2016). Large Eddy Simulation of selective non-catalytic reduction (SNCR): A downsizing procedure for simulating nitric-oxide reduction units. Chem. Engine. Sci. 139, 285–303. DOI: 10.1016/j.ces.2015.10.002.
• 11. Musa, A.A.B., Zeng, X., Fang, Q. & Zhou, H. (2013). Numerical Simulation on Improving NOx Reduction Efficiency of SNCR by Regulating the 3-D Temperature Field in a Furnace Adv. Mater. Res. 807–809, 1505–1513. DOI: 10.4028/www.scientific.net/AMR.807-809.1505.
• 12. Wilk, M., Inger, M., Gaca, B. & Kotarski, J. (2015). NOx emission reduction from flue gases with using SNCR method – design and construction of an industrial research plant. Inspektor, biuletyn Urzędu Dozoru Technicznego 8, 25–26, [in Polish].

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).