Catalytic co-combustion of biomass and brown coal in a fluidized bed: Economic and environmental benefits.

Autor: Dubinin YV; Federal Research Center Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia., Yazykov NA; Federal Research Center Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia., Yeletsky PM; Federal Research Center Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia. Electronic address: yeletsky@catalysis.ru., Tabakaev RB; University of Tyumen, Volodarskogo str. 6, Tyumen, 625003, Russia., Belyanovskaya AI; University of Tyumen, Volodarskogo str. 6, Tyumen, 625003, Russia., Yakovlev VA; Federal Research Center Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia.
Jazyk: angličtina
Zdroj: Journal of environmental sciences (China) [J Environ Sci (China)] 2024 Jun; Vol. 140, pp. 24-36. Date of Electronic Publication: 2023 Mar 05.
DOI: 10.1016/j.jes.2023.02.045
Abstrakt: The work is devoted to the study of combustion of brown coal, pine sawdust, and their mixtures in a fluidized bed of catalyst at 600-750°С. It is shown that an increase in the content of sawdust in a mixture with brown coal leads to an increase in the burnout degree of solid fuel from 94.4% to 99.9%, while the emission of greenhouse gases in the form of CO 2 CO and NO x is reduced (CO 2 from the biomass is not included in the balance). The high content of alkaline earth metal oxides (CaO and MgO) in the mineral part of brown coal, sawdust, and their mixtures eliminates the emission of sulfur oxides and the slagging of heat-exchange surfaces during the combustion in a fluidized bed of catalyst. The optimal temperature, when the highest burnout degree of the above fuels is achieved in the combustion is 750°С. It is also shown that the increase in temperature and the content of sawdust in the composition of the fuel mixtures has a positive effect on the economic and environmental process indicators.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023. Published by Elsevier B.V.)
Databáze: MEDLINE
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