Mass yield of biochar from hydrothermal carbonization of sucrose

https://doi.org/10.17221/73/2015-RAECitation:Velebil J., Malaťák J., Bradna J. (2016): Mass yield of biochar from hydrothermal carbonization of sucrose. Res. Agr. Eng., 62: 179-184.
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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.
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