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Oxidative Conversion of Wood Gasification Products in a Mixing Reactor

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Abstract

The results of thermodynamic calculations and experimental data on conversion of wood gasification tars in pyrolysis gas to tar-free fuel gas by partial oxidation with air are reported. The rate of oxygen feeding into the converter, expressed via oxygen excess J, was used as the main controlling parameter of the conversion. The calculation shows that, under the optimum conversion conditions (J = 0.45), the tars are converted virtually completely to gaseous products that are not inferior to the starting substances in the heat of combustion and have approximately 3 times larger volume. In the experiments, because of the effect of lateral heat loss, at the air feeding rate corresponding to J = 0.45–0.50, the temperature is approximately 400°С lower; therefore, the tar conversion reached only 80%. The heat of combustion of the gaseous products after the conversion was 20–30% lower than that of the initial gaseous gasification products, and the volume of the gaseous conversion products increased by a factor of 2.5–3.

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ACKNOWLEDGMENTS

The elemental composition of pyrolysis tar was determined at the Analytical Center of Shared Use, Institute of Problems of Chemical Physics, Russian Academy of Sciences by Senior Engineer G.V. Guseva.

Funding

The study was financially supported by government assignment no. 0089-2019-0018, state registry no. АААА-А19-119-022690098-3.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432, Chernogolovka, Russia

    V. M. Kislov, S. V. Glazov, M. V. Salganskaya, E. N. Pilipenko & Yu. Yu. Tsvetkova

  2. Department of Fundamental Physicochemical Engineering, Moscow State University, 119991, Moscow, Russia

    M. V. Salganskaya

Authors
  1. V. M. Kislov
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  2. S. V. Glazov
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  3. M. V. Salganskaya
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  4. E. N. Pilipenko
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  5. Yu. Yu. Tsvetkova
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Corresponding author

Correspondence to V. M. Kislov.

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Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 3, pp. 363–370, January, 2021 https://doi.org/10.31857/S0044461821030117

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Kislov, V.M., Glazov, S.V., Salganskaya, M.V. et al. Oxidative Conversion of Wood Gasification Products in a Mixing Reactor. Russ J Appl Chem 94, 347–353 (2021). https://doi.org/10.1134/S1070427221030113

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