Plasma technology to remove NOx from off-gases

• Autorzy: Pawelec Andrzej , Chmielewski Andrzej G. , Sun Yongxia , Bułka Sylwester , Torims Toms , Pikurs Guntis , Mattausch Gösta

Identyfikatory

DOI

10.2478/nuka-2021-0033

• Konferencja: International Conference on Development and Applications of Nuclear Technologies NUTECH-2020 (04–07.10.2020; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

Operation of marine diesel engines causes signifi cant emission of sulphur and nitrogen oxides. It was noticed worldwide and the regulations concerning harmful emissions were introduced. There were several solutions elaborated; however, emission control for both SOx and NOx requires two distinctive processes realized in separated devices, which is problematic due to limited space on ship board and high overall costs. Therefore, the electron beam flue gas treatment (EBFGT) process was adopted to ensure the abatement of the problem of marine diesel off-gases. This novel solution combines two main processes: fi rst the fl ue gas is irradiated with electron beam where NO and SO2 are oxidized; the second stage is wet scrubbing to remove both pollutants with high efficiency. Laboratory tests showed that this process could be effectively applied to remove SO2 and NOx from diesel engine off-gases. Different compositions of absorbing solution with three different oxidants (NaClO, NaClO2 and NaClO3) were tested. The highest NOx removal efficiency (>96%) was obtained when seawater-NaClO2-NaOH was used as scrubber solution at 10.9 kGy dose. The process was further tested in real maritime conditions at Riga shipyard, Latvia. More than 45% NOx was removed at a 5.5 kGy dose, corresponding to 4800 Nm3 /h off-gases arising from ship emission. The operation of the plant was the first case of examination of the hybrid electron beam technology in real conditions. Taking into account the experiment conditions, good agreement was obtained with laboratory tests. The results obtained in Riga shipyard provided valuable information for the application of this technology for control of large cargo ship emission.

Słowa kluczowe

EN

electron beam; flue gas treatment; marine diesel engines; NOx; SOx; ship emissions

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2021
• Tom: Vol. 66, No. 4
• Strony: 227--231
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Pawelec Andrzej

• Institute of Nuclear Chemistry and Technology Dorodna 16 Str., 03-195 Warsaw, Poland

autor

Chmielewski Andrzej G.

• Institute of Nuclear Chemistry and Technology Dorodna 16 Str., 03-195 Warsaw, Poland

• https://orcid.org/0000-0001-6262-5952

autor

Sun Yongxia

• Institute of Nuclear Chemistry and Technology Dorodna 16 Str., 03-195 Warsaw, Poland

• https://orcid.org/0000-0002-7359-3869

autor

Bułka Sylwester

• Institute of Nuclear Chemistry and Technology Dorodna 16 Str., 03-195 Warsaw, Poland

autor

Torims Toms

• Riga Technical University, Riga, Latvia

autor

Pikurs Guntis

• Riga Technical University, Riga, Latvia

autor

Mattausch Gösta

• Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology, FEP Dresden, Germany

Bibliografia

• 1. Viana, M., Hammingh, P., Colette, A., Querol, X., Degraeuwe, B., de Vlieger, I., & van Aardenne, J. (2014). Impact of maritime transport emissions on coastal air quality in Europe. Atmos. Environ., 90, 96–105.
• 2. European Federation for Transport and Environment. (2020). Shipping’s impact on air quality. Retrieved July 17, 2020, from https://www.transportenvironment.org/what-we-do/shipping/air-pollution-ships.
• 3. DieselNet. (2020). IMO Marine Engine Regulations. Retrieved July 4, 2020, from https://www.dieselnet. com/standards/inter/imo.php.
• 4. International Maritime Organization. (2019). Nitrogen oxides (NOx) – Regulation 13. Retrieved July 17, 2019, from http://www.imo.org/en/OurWork/environment/pollutionprevention/airpollution/pages/nitrogen-oxides-(nox)-%E2%80%93-regulation-13.aspx.
• 5. McGill, R., Remley, W. B., & Winther, K. (2013). Alternative fuels for marine applications. A Report from the IEA Advanced Motor Fuels Implementing Agreement. Annex 41. Paris: International Energy Agency. Available from https://www.iea-amf.org/app/webroot/files/file/Annex%20Reports/AMF_Annex_41.pdf.
• 6. Nyman, G. B. G., & Tokerud, A. (1991). Seawater scrubbing removes SO2 from refinery flue-gases. Oil & Gas Journal, 89(26), 52–54.
• 7. Lovblad, G., & Fridel, E. (2006). Experiences from use of some techniques to reduce emissions from ships. Göteborg: Swedish Maritime Administration and Region Västra Götaland.
• 8. Winnes, H., Fridell, E., Yaramenka, K., Nelissen, D., Faber, J., & Ahdour, S. (2016). NOx controls for shipping in EU seas. Stockholm: IVL Swedish Environmental Research Institute and CE Delft. 9. Zwolińska, E., Sun, Y., Chmielewski, A. G., Pawelec, A., & Bułka, S. (2020). Removal of high concentrations of NOx and SO2 from diesel off-gases using a hybrid electron beam technology. Energy Rep., 6, 952–964.
• 10. Zhao, L., Sun, Y., Chmielewski, A. G., Pawelec, A., & Bułka, S. (2020). NO oxidation with NaClO, NaClO2, and NaClO3 solution using electron beam and a one stage absorption system. Plasma Chem. Plasma Process., 40, 433–447.
• 11. Torims, T., Kravalis, K., Pikurs, G., Ruse, A., Chmielewski, A. G., Pawelec, A., Zimek, Z., Mattausch, G., & Vretenar, M. (2020). Development of a hybrid electron accelerator system for the treatment of marine diesel exhaust gases. In Proceedings of the 11th International Particle Accelerator Conference, May 10–15, 2020, Ganil/Caen, France. DOI: 10.18429/JACoW-IPAC2020-THVIR14..

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).