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SCR Coated DPF for Marine Engine Applications

  • Manuel KleinhenzEmail author
  • Axel Fiedler
  • Peter Lauer
  • Andreas Döring
Original Paper
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Abstract

The combination of a catalytic coating for selective catalytic reduction (SCR) and a diesel particulate filter (DPF) obtains the simultaneous reduction of NOX and particulate matter in a compact exhaust after-treatment system (EATS). A diesel oxidation catalyst (DOC), which is installed upstream to the SCR coated DPF (SDPF), provides the required NO2 for the passive soot regeneration. The layout of this EATS is state of the art for automotive applications. However, the requirements of a marine application, especially the high sulfur resistance, result in a significant development effort. It has been observed that the combination of vanadium-based coatings and DPF substrates made of cordierite lead to a significant deterioration of the SCR performance after different aging procedures. Contrary to this, the combination of DPFs, which consist of silicon carbide, and vanadium-based coatings, reveals a sufficient NOX reduction after aging in addition to the required sulfur resistance. Furthermore, the investigated DOC systems provides a remarkable NO2 generation, which enables the passive soot regeneration in the SDPF system, while using marine distillate fuels with a sulfur content up to 5000 ppm.

Keywords

After-treatment system Marine application SDPF CRT Sulfur resistance Hydrothermal stability 

Notes

Acknowledgements

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 634135.

References

  1. 1.
    Döring A, Bugsch M, Hetzer J, Bader I, Struckmeier D, Baydak M, Losher R, Stiesch G (2016) The MAN SCR System—more than just fulfilling IMO Tier III. International Council on Combustion Engines (CIMAC), Helsinki, Paper 26Google Scholar
  2. 2.
    Döring A, Emmerling G, Rothe D (2012) Downsizing of the Euro VI exhaust aftertreatment components to fit into the Euro III silencer. In: International Vienna engine symposium.  https://doi.org/10.13140/2.1.2355.0723
  3. 3.
    Schraml S, Rothe D, Lutz F, Zuther F (2017) In: Liebl J, Beidl C (eds) Internationaler Motorenkongress 2017. Proceedings. Springer Vieweg, WiesbadenGoogle Scholar
  4. 4.
    Johansen K (2015) Catal Today 258:2–10CrossRefGoogle Scholar
  5. 5.
    Johansen K, Widd A, Zuther F, Viecenz H (2016) SAE Technical Paper No. 2016-01-0915Google Scholar
  6. 6.
    Czerwinski J, Zimmerli Y, Mayer A, D’Urbano G, Zürcher D (2015) Emission Control Sci Technol 1:152CrossRefGoogle Scholar
  7. 7.
    Johansen K, Bentzer H, Kustov A, Larsen K, Janssens TVW, Barfod RG (2014) SAE Technical Paper No. 2014-01-1523Google Scholar
  8. 8.
    Marberger A, Elsener M, Ferri D, Kröcher O (2015) Catalysts 5:1704–1720CrossRefGoogle Scholar
  9. 9.
    Casanova M, Nodari L, Sagar A, Schermanz K, Trovarelli A (2015) Appl Catal B 176–177:699–708CrossRefGoogle Scholar
  10. 10.
    Tronconi E, Nova I, Marchitti F, Koltsakis G, Karamitros D, Maletic B, Markert N, Chatterjee D, Hehle M (2015) Emission Control Sci Technol 1:134CrossRefGoogle Scholar
  11. 11.
    Mihai O, Stenfeldt M, Olsson L (2015) Catal Today 306:243–250CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.MAN Energy Solutions SEAugsburgGermany

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