Experimental investigation of N2O formation in selective non-catalytic NOx reduction processes performed in stoker boiler

• Autorzy: Krawczyk P.

Identyfikatory

DOI

10.1515/pjct-2016-0078

• Języki publikacji: EN

Abstrakty

EN

Stoker fired boiler plants are common throughout Eastern Europe. Increasingly strict emission standards will require application of secondary NO_x  abatement systems on such boilers. Yet operation of such systems, in addition to reducing NO_x  emissions, may also lead to emission of undesirable substances, for example N₂O. This paper presents results of experimental tests concerning N₂O formation in the selective non-catalytic NO_x  emission reduction process (SNCR) in a stoker boiler (WR 25 type). Obtained results lead to an unambiguous conclusion that there is a dependency between the NO_x  and N₂O concentrations in the exhaust gas when SNCR process is carried out in a coal-fired stoker boiler. Fulfilling new emission standards in the analysed equipment will require 40–50% reduction of NO_x  concentration. It should be expected that in such a case the N₂O emission will be approximately 55–60 mg/m³, with the NO_x  to N₂O conversion factor of about 40%.

Słowa kluczowe

EN

selective non-catalytic reduction process; nitrous oxide emissions; stocker boiler

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2016
• Tom: Vol. 18, nr 4
• Strony: 104--109
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Krawczyk P.

• Warsaw University of Technology, Institute of Heat Engineering, 21/25 Nowowiejska Str., 00-665 Warszawa, Poland

Bibliografia

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Uwagi

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