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Kinetics of H2S selective oxidation by oxygen at the carbon nanofibrous catalyst

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Abstract

This work is dedicated to construction of kinetic model for the process of H2S selective oxidation into elemental sulfur at carbon nanofibrous (CNF) catalyst. The experiments included the CNF synthesis and kinetic studies. The modified minimization procedure was proposed for kinetic modelling, model discrimination and determination of kinetic parameters. The selected kinetic model provides the qualitatively adequate and quantitatively accurate description of experimental results in a wide range of temperatures (155–250 °C), H2S (0.5–2 V%) and O2 (0.25–10 V%) concentrations and reaction mixture humidity (0–35 V% of water vapor). The average value of deviation in the experimental and calculated concentration of key reactants (H2S, O2, SO2) does not exceed 0.04 V%. Such value is comparable with the mean error in maintenance and control of these concentrations in experiments, so the overall model accuracy may be estimated as quite high. The constructed model may be applied for the mathematical modelling, engineering and scale-up of different H2S oxidation processes, based on the CNF catalyst.

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Acknowledgements

This work was conducted within the frameworks of Russian State budget Project No. 0303-2016-0017 for Boreskov Institute of Catalysis and of Tomsk Polytechnic University Competitiveness Enhancement Program grant.

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk, Russia, 630090

    Vasiliy Shinkarev & Andrey Zagoruiko

  2. Novosibirsk State Technical University, Marxa, 30, Novosibirsk, Russia, 630073

    Vasiliy Shinkarev & Gennady Kuvshinov

  3. OCSiAl Company, Inzhenernaya, 24, Novosibirsk, Russia, 630090

    Vasiliy Shinkarev

  4. Sochi State University, Sovetskaya, 26 “A”, Sochi, Russia, 354000

    Gennady Kuvshinov

  5. Tomsk Polytechnic University, Lenina, 30, Tomsk, Russia, 634050

    Andrey Zagoruiko

Authors
  1. Vasiliy Shinkarev
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  2. Gennady Kuvshinov
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  3. Andrey Zagoruiko
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Correspondence to Andrey Zagoruiko.

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Shinkarev, V., Kuvshinov, G. & Zagoruiko, A. Kinetics of H2S selective oxidation by oxygen at the carbon nanofibrous catalyst. Reac Kinet Mech Cat 123, 625–639 (2018). https://doi.org/10.1007/s11144-017-1339-z

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  • DOI: https://doi.org/10.1007/s11144-017-1339-z

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