Advertisement

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

  • 137 Accesses

  • 2 Citations

Abstract

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.

This is a preview of subscription content, log in to check access.

Access options

Buy single article

Instant unlimited access to the full article PDF.

US$ 39.95

Price includes VAT for USA

Subscribe to journal

Immediate online access to all issues from 2019. Subscription will auto renew annually.

US$ 199

This is the net price. Taxes to be calculated in checkout.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

References

  1. 1.

    http://www.dieselnet.com/standards. Accessed Sept 15 2018

  2. 2.

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

  3. 3.

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

  4. 4.

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

  5. 5.

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

  6. 6.

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

  7. 7.

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

  8. 8.

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

  9. 9.

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

  10. 10.

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

  11. 11.

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

  12. 12.

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

  13. 13.

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

  14. 14.

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

  15. 15.

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

  16. 16.

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

  17. 17.

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

  18. 18.

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

  19. 19.

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

  20. 20.

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

Download references

Acknowledgements

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).

Author information

Correspondence to T. Maunula.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

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) doi:10.1007/s11244-018-1123-y

Download citation

Keywords

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