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Dynamics of topochemical reactions in supported iron Fischer–Tropsch synthesis catalysts during their reduction in flowing CO and CO + H2

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Abstract

The reduction of Fe2O3/SiO2 catalysts in flowing CO and CO + H2 in the temperature-programmed and isothermal modes has been investigated by in situ magnetization measurements. The process takes place in two steps, successively yielding magnetite and Hägg carbide. The carbide concentration in the case of reduction with CO is higher than in the case of reduction with the CO + H2. This is assumed to be due to the formation of Fe2SiO4 in the reduction of the catalysts with CO + H2.

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Authors and Affiliations

  1. Faculty of Chemistry, Moscow State University, Moscow, 119991, Russia

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

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

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Original Russian Text © P.A. Chernavskii, V.O. Kazak, G.V. Pankina, V.V. Lunin, 2016, published in Kinetika i Kataliz, 2016, Vol. 57, No. 3, pp. 334–339.

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Chernavskii, P.A., Kazak, V.O., Pankina, G.V. et al. Dynamics of topochemical reactions in supported iron Fischer–Tropsch synthesis catalysts during their reduction in flowing CO and CO + H2 . Kinet Catal 57, 333–338 (2016). https://doi.org/10.1134/S0023158416030034

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  • DOI: https://doi.org/10.1134/S0023158416030034

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