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Mass yield of biochar from hydrothermal carbonization of sucrose

Author

Listed:
  • J. Velebil

    (Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • J. Malaťák

    (Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • J. Bradna

    (Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

In this article, the effect of increasing dry matter content and reaction time of hydrothermal carbonization on mass yield of biochar was studied. Carbonization took place in batch experiments in a pressure vessel. Results have confirmed the assumption that the mass yield of biochar would increase with growing dry matter content in the initial solution and also with reaction time at reaction temperature of 200°C. It was found that components of the liquid product that remain in the biochar have a measurable impact on its mass yield. Mixing of the reactor proved to have a considerable effect on the mass yield as well. Biochar produced in absence of mixing had higher pore volume and higher yield. This was evident even after subtracting the equivalent liquid phase dry matter in the biochar after drying.

Suggested Citation

  • J. Velebil & J. Malaťák & J. Bradna, 2016. "Mass yield of biochar from hydrothermal carbonization of sucrose," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 62(4), pages 179-184.
    • Handle: RePEc:caa:jnlrae:v:62:y:2016:i:4:id:73-2015-rae
    DOI: 10.17221/73/2015-RAE
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    References listed on IDEAS

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    1. J. Malaťák & J. Bradna, 2014. "Use of waste material mixtures for energy purposes in small combustion devices," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 60(2), pages 50-59.
    2. J. Malaťák & T. Dlabaja, 2015. "Hydrothermal carbonization of stabilized sludge and meat and bone meal," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 61(1), pages 21-28.
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