The increase in the yield of charcoal from saw dust of birch waste
DOI:
https://doi.org/10.23877/MS.TS.26.005Keywords:
gasification, biomass, birch sawdust, wood coal, carbonization, pre-impregnationAbstract
The implementation of new processes for the gasification of solid biomass on an industrial scale is hampered by the need to decompose tars. To solve this problem, it is proposed to use a preliminary process of carbonization of solid biomass into charcoal with a calorific value of 25-30 MJ/kg. By the example of carbonization of birch sawdust wastes, the possibility of increasing the yield of charcoal by 12.8-20.9% is shown due to preliminary impregnation of the original wood with aqueous solutions of H<sub>3</sub>PO<sub>4</sub> and FeCl<sub>3</sub>. After preliminary impregnation, the share of fixed carbon in the original wood increased by 6.6-13.2%, which, along with the choice of optimal conversion modes, had a decisive effect on increasing the efficiency of the wood carbonization process by 1.6-1.8 times
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References
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Investigation of the processes of preparation and carbonization of freshly cut birch waste/P.E. Strizhak, A.I. Trypolsky, E. Yu. Kalishin, A.N. Dudnik/Prace Institute Nafty I Gazu. Efektywność Energetyczna, Kraków, Poland. - 2009, N162. - pp. 203-208
