Skip to main content
Log in

Effect of Water on Methane and Ethane Oxidation in the Conditions of Oxidative Coupling of Methane Over Model Catalysts

  • Original Paper
  • Published:
Topics in Catalysis Aims and scope Submit manuscript

Abstract

The effect of water onto the rate and selectivity of methane and ethane oxidation in the conditions of oxidative coupling of methane (OCM) is studied. The effect of water strongly depends on the OCM catalyst composition: whereas PbOX/Al2O3 undergoes an irreversible deactivation, no effect of water is observed on both reaction rate and OCM selectivity over La/MgO. Over NaWMn/SiO2 catalyst both rate of reaction and selectivity are enhanced by water addition to the feed at low conversions during methane oxidation. In the case of ethane oxidation, the rate of reaction is strongly affected by water addition, whereas selectivity to ethylene does not change at equal conversions. At increasing concentration of water in the feed gas its relative effect onto the methane oxidation substantially decreases, so the increasing concentration of water above ~8 vol% does not further enhance the rate of methane oxidation. The observed effects are explained by the participation of water in the active site turnover, namely in its re-oxidation by shifting the prevailing re-oxidation route from filling surface oxygen vacancies to oxidative dehydrogenation of surface hydroxy-groups.

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

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  1. Fang T, Yeh C (1981) J Catal 69:227–229

    Article  CAS  Google Scholar 

  2. Keller GE, Bhasin M (1982) J Catal 73:9–19

    Article  CAS  Google Scholar 

  3. Hinsen W, Baerns M (1983) Chem Ztg 107:223–226

    CAS  Google Scholar 

  4. Ito T, Lunsford JH (1985) Nature (London) 314:721–722

    Article  CAS  Google Scholar 

  5. Karasuda T, Nagaoka K, Aika K-I (1998) Stud Surf Sci Catal 119:283–288

    Article  CAS  Google Scholar 

  6. Takanabe K, Iglesia E (2009) J Phys Chem C 113:10131–10145

    Article  CAS  Google Scholar 

  7. Otsuka K, Jinno K, Morikawa A (1986) J Catal 100:353–359

    Article  CAS  Google Scholar 

  8. Fang X, Li S, Lin J, Chu Y (1992) J Mol Catal (China) 6:427–433

    CAS  Google Scholar 

  9. Lunsford JH (1995) Angew Chem 34:970–980

    Article  CAS  Google Scholar 

  10. Arutyunov V, Krylov O (1998) Oxidative transformations of methane (in Russ.). Nauka, Moscow

    Google Scholar 

  11. Sinev MYu (2003) J Catal 216:468–476

    Article  CAS  Google Scholar 

  12. Zanthoff H, Baerns M (1990) Ind Eng Chem Res 29:2–10

    Article  CAS  Google Scholar 

  13. McCarty JG, McEwen AB, Quinlan MA (1990) Stud Surf Sci Catal 55:405–415

    Article  CAS  Google Scholar 

  14. Mims CA, Mauti R, Dean AM, Rose KD (1994) J Phys Chem 98:13357–13372

    Article  CAS  Google Scholar 

  15. Sinev MYu (1992) Catal Today 13:561–564

    Article  CAS  Google Scholar 

  16. Sinev MYu (1995) Catal Today 24:389–393

    Article  CAS  Google Scholar 

  17. Sinev MYu (2007) Russ J Phys Chem B 1:412–433

    Article  Google Scholar 

  18. Sinev M, Arutyunov V, Romanets A (2007) Adv Chem Engng 32:167–258

    Article  CAS  Google Scholar 

  19. Morrison SR (1977) The Chemical Physics of Surfaces. Plenum Press, New York

    Book  Google Scholar 

  20. Sinev MYu, Bychkov VYu (1999) Kinetika i Kataliz (Russ Kinetics and Catalysis) 40:906–925

    Google Scholar 

  21. Sinev MYu, Bychkov VYu (1993) Kinetika i Kataliz (Russ Kinetics and Catalysis) 34:309–313

    CAS  Google Scholar 

  22. Tsang W, Hampson RF (1986) J Phys Chem Ref Data 15:1087–1279

    Article  CAS  Google Scholar 

  23. Hewett KB, Rosynek MP, Lunsford JH (1997) Catal Lett 45:125–128

    Article  CAS  Google Scholar 

  24. Sinev MYu, Bychkov VYu, Rozentuller BV, Rajput AM (1993) In: IX Soviet-Japanese Seminar on Catalysis. Proceedings. BIC, Novosibirsk

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to M. Sinev.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lomonosov, V., Gordienko, Y. & Sinev, M. Effect of Water on Methane and Ethane Oxidation in the Conditions of Oxidative Coupling of Methane Over Model Catalysts. Top Catal 56, 1858–1866 (2013). https://doi.org/10.1007/s11244-013-0122-2

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11244-013-0122-2

Keywords

Navigation