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Dynamics of carbide formation in iron-supported catalysts of the Fischer–Tropsch process promoted by copper and potassium

  • Chemical Kinetics and Catalysis
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Abstract

The kinetics of the formation of iron carbides during the activation of iron-coated catalyst for Fischer–Tropsch synthesis promoted by copper and potassium, and by carbon monoxide and syngas, is studied. It is established that the presence of copper lowers the initial temperature of hematite reduction to magnetite and leads to the formation of carbide in both CO and СО/Н2. Potassium slows the rate of magnetite formation, but it accelerates the formation of iron oxide. It is shown that the rate of carbide formation during magnetite reduction for catalysts is half that in the reaction of hematite reduction to magnetite in both CO and СО/Н2.

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Authors and Affiliations

  1. Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia

    V. O. Kazak, G. V. Pankina, P. A. Chernavskii & V. V. Lunin

Authors
  1. V. O. Kazak
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  2. G. V. Pankina
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  3. P. A. Chernavskii
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  4. V. V. Lunin
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Correspondence to V. O. Kazak.

Additional information

Original Russian Text © V.O. Kazak, G.V. Pankina, P.A. Chernavskii, V.V. Lunin, 2017, published in Zhurnal Fizicheskoi Khimii, 2017, Vol. 91, No. 5, pp. 778–787.

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Kazak, V.O., Pankina, G.V., Chernavskii, P.A. et al. Dynamics of carbide formation in iron-supported catalysts of the Fischer–Tropsch process promoted by copper and potassium. Russ. J. Phys. Chem. 91, 822–830 (2017). https://doi.org/10.1134/S0036024417050120

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  • DOI: https://doi.org/10.1134/S0036024417050120

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