Challenges and opportunities of torrefaction technology

31st International Conference on Equations of State for Matter

Kosov, V.F.^1 ; Kuzmina, J.S.^1 ; Sytchev, G.A.^1 ; Zaichenko, V.M.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow

125412, Russia^1

关键词: Biomass fuels;    Ecological balance;    Energy sector;    Heat and electricity;    Non-renewable energy resources;    Piston engines;    Renewable sources;    Technological process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012139/pdf
DOI  :  10.1088/1742-6596/774/1/012139

来源: IOP

【 摘 要 】

Since the active exploitation and usage of classical non-renewable energy resources the most promising direction is the development of technologies of heat and electricity production from renewable sources - biomass. This is important in terms of reducing the harmful man-made influence of fuel-and-energy sector on the ecological balance. One of the most important aims when using biomass is its pre-treatment. The paper describes the fuel preliminary preparation for combustion with such technological process as torrefaction. Torrefaction allows bringing the biomass fuel as close as it possible to fossil coals for the main thermotechnical parameters. During torrefaction moisture is removed from initial material and the partial thermal decomposition of its components appears. The final torrefied product can be recommended for utilization in existing coal-fired boilers without their major reconstruction. Thus torrefaction technology enables the partial or complete replacement of fossil coal. At JIHT RAS, a torrefaction pilot plant is developed. As heat transfer medium the gas-piston engine exhaust gases were used. Results of researching and proposals for further development are showed in this paper.