Abstract
The tray unit for heat treatment of reduced wood, which provides uniform torrefaction of raw materials with different fractional composition without a prior fractionation, is developed. Fuel pellets derived from thermally heated reduced wood using the unit are studied. The research showed the effectiveness of thermal processing of wood raw material prior to production of solid fuel to reduce requirements for storage conditions and energy efficiency. It is noted that the equilibrium moisture content of torrefied pellets is more than twice as low as of standard pellets. The rise in combustibility of wood pellets with increasing temperature of torrefaction is observed which can be explained by the increase in a released heat of combustion and reduction of the initial humidity, which in total allows torreficating and maintaining self-combustion longer. It is established that the increase in productivity and economic efficiency of the torrefaction process of wood raw material can be achieved by completion of processing at the time of significant reduction in a stream of gaseous decomposition products without a substantial loss of energy quality of fuel.
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Khasanshin, R.R., Safin, R.R., Shaikhutdinova, A.R. (2020). Study of Operating Characteristics of Pellets Made from Torrefied Wood Raw Material. In: Radionov, A., Karandaev, A. (eds) Advances in Automation. RusAutoCon 2019. Lecture Notes in Electrical Engineering, vol 641. Springer, Cham. https://doi.org/10.1007/978-3-030-39225-3_56
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