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Work of JSC “VTI” in the Area of Fluidized Beds for Efficient and Environmentally-Friendly Use of Solid Fuels

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Power Technology and Engineering Aims and scope

The development of fluidized bed (FB) and circulating fluidized bed (CFB) technologies for the combustion and gasification of solid fuels is analyzed. The efficiency of CFB technology is mainly determined by fuel quality and the power rating of the installation given restrictions on the emissions of harmful substances. An important condition for the optimal use of CFB technology is conformity with standards for harmful emissions without the use of desulfurization and nitrogen purification units. Another significant advantage consists in the diversification of fuel supplies. A retrospective substantiation of methods for calculating fluid dynamics and heat transfer in CFB units carried out by JSC “VTI” is given. A brief analysis of the operation results of the first in the Russian Federation boiler with CFB of the 330 MWunit of Novocherkassk thermal power plant (TPP) is presented showing the need for a more detailed study involving additional measurements, as well as the optimization equipment and operating conditions. Particular attention is paid to the latest research on the combustion, pyrolysis, and gasification of biomass. Data on biomass particle fragmentation and bed agglomeration processes are presented. It is shown that the key issue affecting the use of CFB technology consists in maintaining the optimal bed material composition, which is determined by the separation of material and return system operation. The results of new work on particle separation in cyclones and the hydrodynamics of downward movement in risers and pneumatic valves are presented. Research into new interconnected FB and CFB reactor technologies shows their significant potential for use at distributed energy facilities for generating heat, electricity, and useful products, as well as for capturing CO2 during combustion and gasification of fuels in chemical cycles with metal oxides/oxygen carriers.

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Correspondence to G. A. Ryabov.

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Translated from Élektricheskie Stantsii, No. 6, June 2021, pp. 17 – 22. DOI: 10.34831/EP.2021.1079.6.003

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Ryabov, G.A., Folomeev, O.M. & Litun, D.S. Work of JSC “VTI” in the Area of Fluidized Beds for Efficient and Environmentally-Friendly Use of Solid Fuels. Power Technol Eng 55, 594–599 (2021). https://doi.org/10.1007/s10749-021-01403-2

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  • DOI: https://doi.org/10.1007/s10749-021-01403-2

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