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Methane Abatement and Catalyst Durability in Heterogeneous Lean-Rich and Dual-Fuel Conditions


Natural gas is an alternative fuel to replace partly conventional liquid fuels like diesel or gasoline to improve fuel economy (less CO2) and decrease pollutants (particulates). Mixed stoichiometric–lean combustion has been introduced as a potential way to manage without secondary diesel fuel. This study focused on catalytic methods to oxidize methane, HCs, CO and NO in lean-stoichiometric NG and lean diesel–NG exhaust gases in heavy-duty applications. Lean methane oxidation is the most challenging condition and only methane oxidation catalyst (MOC) developed for lean conditions was able to reach low methane light-off temperatures. MOC was almost as good as three-way catalyst (TWC) in stoichiometric conditions but the heavier ageing and λ oscillating conditions cause problems for MOC (no oxygen storage materials). Diesel oxidation catalysts (DOC) were very poor in TWC reactions but Pt-rich DOC is important to reach in lean higher NO2 utilized in DPF regeneration and SCR. In TWC + MOC, DOC + MOC combinations, the MOC part dominated methane oxidations due to that significant difference in their base activity for methane oxidation. The combinatory systems showed also in deactivation–regeneration cycles promising and interesting results, which can be utilized in transient, heterogeneous exhaust conditions.

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  1. Accessed Sept 15 2018

  2. Maunula T (2013) SAE technical paper 2013-01-0530

  3. Lampert JK, Shahjahan Kazi M, Farrauto RJ (1997) Appl Catal B 14:211–223

    Article  CAS  Google Scholar 

  4. Gélin P, Primet M (2002) Appl Catal B 39:1–37

    Article  Google Scholar 

  5. Gélin P, Urfels L, Primet M, Tena E (2003) Catal Today 83:45–57

    Article  CAS  Google Scholar 

  6. Kinnunen N, Kallinen K, Kinnunen T SAE Paper 2013-24-0155

  7. Lapisardi G, Urfels L, Gélin P, Primet M, Kaddouri A, Garbowski E, Toppi S, Tena E (2006) Catal Today 117:564–568

    Article  CAS  Google Scholar 

  8. Escandón LS, Ordóñez S, Vega A, Díez FV (2005) Chemosphere 58:9–17

    Article  CAS  PubMed  Google Scholar 

  9. Kinnunen NM, Hirvi JT, Suvanto M, Pakkanen TA (2012) J Mol Catal A 356:20–28

    Article  CAS  Google Scholar 

  10. Satsuma A, Tojo T, Okuda K, Yamamoto Y, Arai S, Oyama (2015) J Catal Today 242:308–314

    Article  CAS  Google Scholar 

  11. Muller CA, Maciejewski M, Koeppel RA, Baiker A (1999) Catal Today 47:245

    Article  CAS  Google Scholar 

  12. Ordóñez S, Hurtado P, Díez FV (2005) Catal Lett 100:27–34

    Article  CAS  Google Scholar 

  13. Maunula T, Kallinen K, Savimäki A, Wolff T (2016) Topics Catal 59(10/12):1049–1053

    Article  CAS  Google Scholar 

  14. Kinnunen N, Hirvi J, Kallinen K, Maunula T, Keenan M, Suvanto M (2017) Appl Catal B 207:114 15

    Article  CAS  Google Scholar 

  15. Maunula T, Vakkilainen A, Lievonen A, Torkkell K, Niskanen K, Härkönen M (1999) SAE paper 1999-01-3625

  16. Maunula T, Suopanki A, Torkkell K, Härkönen M (2004) SAE paper 2004-01-3021

  17. Maunula T, Savimäki A, Wolff T (2016) SAE paper 2016-01-0926

  18. Nissinen V, Kinnunen NM, Suvanto M (2018) Appl Catal B 237:110–115

    Article  CAS  Google Scholar 

  19. Kinnunen NM, Keenan M, Kallinen K, Maunula T, Suvanto M (2018) ChemCatChem 10:1556–1560

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  20. Maunula T, Härkönen M, Kivioja M, Slotte T (1993) Oral presentation, ACS meeting, Denver, 28.3.1993–2.4.1993

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The research leading to these results has received funding from the European Community’s Horizon 2020 Programme under Grant Agreement No. 653391 (HDGAS) and from Business Finland project funding under Agreement No. 964/31/2016 (Newgas).

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Correspondence to T. Maunula.

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Maunula, T., Kallinen, K., Kinnunen, N. et al. Methane Abatement and Catalyst Durability in Heterogeneous Lean-Rich and Dual-Fuel Conditions. Top Catal 62, 315–323 (2019).

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  • Natural gas
  • Methane
  • Oxidation
  • Catalysts
  • Nitrogen oxides