Deactivation of Co-Al2O3/SiO2 Fischer–Trospch Synthesis Catalyst in Industrially Relevant Conditions

  • Alexander P. Savost’yanov
  • Oleg L. EliseevEmail author
  • Roman E. Yakovenko
  • Grigoriy B. Narochniy
  • Konstantin I. Maslakov
  • Ivan Zubkov
  • Vitaliy N. Soromotin
  • Alexey T. Kozakov
  • Anatolii V. Nicolskii
  • Serge A. Mitchenko


The deactivation rate of Co-Al2O3/SiO2 Fischer–Tropsch synthesis catalyst have been experimentally assessed at industrially relevant conditions (T 198–237 °C, P = 60 bar, H2/CO = 1.85, GHSV 2000–7000 h–1). The fresh and spent catalyst was characterized by XRD, XPS, BET, TEM, and SEM–EDX techniques. Decreasing active surface area due to cobalt oxidation by product water and sintering of cobalt crystallites were found to be minor factors for the deactivation. The principal reason of activity loss seems is diffusion limitations arising due to catalyst pores plugging by product wax. The linear dependence between gas flow rate and estimated catalyst lifetime was revealed. High GHSV of fresh synthesis gas and/or high circulation ratio of product gas should be employed to prevent rapid loss of catalyst activity.

Graphic Abstract


Heterogeneous catalysis Fischer–Tropsch Deactivation Cobalt Wax 



This work was supported by the Ministry of Education and Science of the Russian Federation (state task no. 10.2980.2017/4.6). XPS spectra analysis was supported by the project no 3.6105.2017/8.9.

Compliance with Ethical Standards

Conflict of interest

The authors declare no conflict of interest.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • Alexander P. Savost’yanov
    • 1
  • Oleg L. Eliseev
    • 2
    Email author
  • Roman E. Yakovenko
    • 1
  • Grigoriy B. Narochniy
    • 1
  • Konstantin I. Maslakov
    • 3
  • Ivan Zubkov
    • 1
  • Vitaliy N. Soromotin
    • 1
  • Alexey T. Kozakov
    • 4
  • Anatolii V. Nicolskii
    • 4
  • Serge A. Mitchenko
    • 1
  1. 1.Platov South-Russian State Polytechnic University (NPI)NovocherkasskRussia
  2. 2.N.D. Zelinsky Institute of Organic ChemistryMoscowRussia
  3. 3.Department of ChemistryLomonosov Moscow State UniversityMoscowRussia
  4. 4.Scientific Research Institute of Physics At SouthernFederal UniversityRostov-on-DonRussia

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