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Formation of Engine Internal NO2: Measures to Control the NO2/NOX Ratio for Enhanced Exhaust After Treatment

Journal Article
ISSN: 1946-3936, e-ISSN: 1946-3944
Published March 28, 2017 by SAE International in United States
Formation of Engine Internal NO<sub>2</sub>: Measures to Control the NO<sub>2</sub>/NO<sub>X</sub> Ratio for Enhanced Exhaust After Treatment
Citation: Rößler, M., Velji, A., Janzer, C., Koch, T. et al., "Formation of Engine Internal NO2: Measures to Control the NO2/NOX Ratio for Enhanced Exhaust After Treatment," SAE Int. J. Engines 10(4):1880-1893, 2017,
Language: English


  1. Hilliard, J. and Wheeler, R., "Nitrogen Dioxide in Engine Exhaust," SAE Technical Paper 790691, 1979, doi:10.4271/790691.
  2. Lizarraga, L. et. al.: “Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process”, Environmental Science & Technology, Volume 45, Issue 24, 2011.
  3. Iwasaki, M., Shinjoh, H.: “A comparative study of “standard”, “fast” and “NO2” SCR reactions over Fe/zeolite catalyst”, Applied Catalysis A: General 390, 2010.
  4. Heywood, J.B.: “Internal Combustion Engine Fundamentals”, McGraw-Hill: New York, 1988.
  5. Rößler, M., Koch, T., Velji, A.: “Increasing the NO2 /NOX ratio in Diesel engines to enhance exhaust aftertreatment”, SIA Powertrain Conference, Rouen, 2016.
  6. Mellor, A., Mello, J., Duffy, K., Easley, W. et al., "Skeletal Mechanism for NOx Chemistry in Diesel Engines," SAE Technical Paper 981450, 1998, doi:10.4271/981450.
  7. Lavoie, G.A, Heywood, J.B., Keck, J.C.: “Experimental and Theoretical Study of Nitric Oxide Formation in Internal Combustion Engines”, Combust. Sci. Tech. 1 [4], 1970.
  8. Liu, S. et. al.: “An experimental investigation of NO2 emission characteristics of a heavy-duty H2-Diesel dual fuel engine”, Int. Journal of Hydrogen Energy, Volume 26, 12015-12024, 2011.
  9. Hori, M., Naoki, M., Malte, P.C., Marinov, N.M.: “The effect of low-concentration fuels on the conversion of nitric oxide to nitrogen dioxide”, 24th Symposium on Combustion, The Combustion Institute, 1992.
  10. Klimstra, J. and Westing, J., "NO2 from Lean-Burn Engines - On its Lower Sensitivity to Leaning than NO," SAE Technical Paper 950158, 1995, doi:10.4271/950158.
  11. Benajes, J. et. al.: “Comprehensive modeling study analyzing the insights of the NO-NO2 conversion process in current Diesel engines”, Energy Conversion and Management, Volume 84, 2014.
  12. Bai, S., Tang, J., Wang, G., Li, G.: “Soot loading estimation model and passive regeneration characteristics of DPF system for heavy-duty engine”, Applied Thermal Engineering, Volume 100, 2016.
  13. Finesso, R., Misul, D., and Spessa, E., "Estimation of the Engine-Out NO2/NOx Ratio in a EURO VI Diesel Engine," SAE Technical Paper 2013-01-0317, 2013, doi:10.4271/2013-01-0317.
  14. Koebel, M., Madia, G., Elsener, M.: “Selective catalytic reduction of NO and NO2 at low temperatures”. Catalysis Today 73, 2002.
  15. Herbst, J., Brunner, R., Lambrecht, A.: “Fast automotive Diesel exhaust measurement using quantum cascade lasers”, Proceedings of SPIE 8993: Quantum Sensing and Nanophotonic Devices XI, San Francisco, 2014.
  16. Ibrahim, O., Wenghoefer, H., and Jackson, C.: “Diesel Particulate Filters and NO2 Emission Limits”, DEER, DearBorn, Michigan, 2009.
  17. Lapuerta, M., Hernández, J., and Armas, O., "Kinetic Modelling of Gaseous Emissions in a Diesel Engine," SAE Technical Paper 2000-01-2939, 2000, doi:10.4271/2000-01-2939.
  18. Mehl, M., Pitz, W.J., Westbrook, C.K. and Curran, H.J.: “Kinetic modeling of gasoline surrogate components and mixtures under engine conditions”, Proceedings of the Combustion Institute: Volume 33, 2011.
  19. Faravelli, T., Frassoldati, A. and Ranzi, E.: “Kinetic modeling of the interactions between NO and hydrocarbons in the oxidation of hydrocarbons at low temperatures”, Combustion and Flame. Volume 132, 2003.
  20. Dayma, G., Ali, K.H. and Dagaut, P.: “Experimental and detailed kinetic modeling study of the high-pressure oxidation of methanol sensitized by nitric oxide and nitrogen dioxide”, Proceedings of the Combustion Institute, Volume 3, 2007.
  21. Contino F, et. al.: “Experimental and numerical analysis of nitric oxide effect on the ignition of iso-octane in a single cylinder HCCI engine”, Combustion and Flame, Volume 160, 2013.
  22. NIST Chemical Kinetics Database, National Institute of Standards and Technology, 2014 (
  23. Glaude P.A. et. al.: “Kinetic modeling of the mutual oxidation of NO and larger alkanes at low temperature”, Energy and fuels, 2005.
  24. Cuoci, A. et. al.: “OpenSMOKE: Numerical Modeling of reacting systems with detailed kinetic mechanisms”, XXXIV Meeting of the Italian Section of the Combustion Institute, Rome 2011.
  25. Hoffmann, S., Schrott, M., Huber, T.: “Model-based Development Methods”, ETAS ReaLTimes 2015/2016.
  26. Maloney, P., "Embedded Torque Estimator for Diesel Engine Control Application," SAE Technical Paper 2004-01-1371, 2004, doi:10.4271/2004-01-1371.

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