Skip to main content
SpringerLink
Log in

Reduction kinetics of iron oxides used for hydrogen production in various gas media

  • Published:
Powder Metallurgy and Metal Ceramics Aims and scope

The paper examines the physicochemical features of the reduction of iron oxides (as multicomponent scale waste) in various gases: H2, CH4, CO, and generator gas containing 33% CO and 67% N2. At the initial stage of reduction, the activity of the gases decreases in the above sequence. It is analyzed how blocking of iron oxide surface with carbon formed in the conversion of methane and carbon monoxide influences the reduction processes. The deposition of carbon in these media is intensified when the reduction degree is higher than 70%. The thermodynamic dependencies of oxide reduction on the ratio of PCO2/Pco partial pressures are given. Noteworthy is high sensitivity of Fe3O4 and FeO reduction to the change in CO2 content.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. V. S. Zenkov, V. V. Pasichnyi, and V. P. Red’ko, “Reduction of iron-containing metallurgical waste to obtain hydrogen with iron vapor method,” Powder Metall. Met. Ceram., 47, No. 11–12, 733–742 (2008).

    Article  CAS  Google Scholar 

  2. A. A. Sigov, V. V. Veselov, and V. P. Dorokhovich, “A. Domsa et al., “Obtaining iron powder by direct reduction with natural gas,” Powder Metall. Met. Ceram., 5, No. 10, 844–846 (1966).

    Google Scholar 

  3. I. N. Frantsevich, V. S. Zenkov, V. N. Bulanov, and V. P. Klimenko, “Effect of a catalytic nickel addition on the reduction of ferric oxide powder by carbon monoxide and hydrogen,” Powder Metall. Met. Ceram., 22, No. 8, 597–601 (1983).

    Google Scholar 

  4. V. S. Zenkov, “Effect of reduction conditions of γ-Fe2O3 on the kinetics, phase composition, and particle size of reaction products,” in: Current Problems of Materials Science [in Russian], Inst. Probl. Materialoved. NAN Ukrainy, Kiev (1996), pp. 117–131.

Download references

Author information

Authors and Affiliations

  1. Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine

    V. I. Zenkov & V. V. Pasichnyi

Authors
  1. V. I. Zenkov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. V. Pasichnyi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. I. Zenkov.

Additional information

Translated from Poroshkovaya Metallurgiya, Vol. 49, No. 3–4 (472), pp. 130–139, 2010.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zenkov, V.I., Pasichnyi, V.V. Reduction kinetics of iron oxides used for hydrogen production in various gas media. Powder Metall Met Ceram 49, 231–237 (2010). https://doi.org/10.1007/s11106-010-9227-3

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11106-010-9227-3

Keywords

Search

Navigation