Wood pellets with waste: energy, environmental and mechanical aspects

G.S. Nyashina, V.V. Dorokhov, D.K. Shvedov and P.A. Strizhak

Renewable Energy, 2025, vol. 250, issue C

Abstract: Combining several components in the composition of pellets affects their physicochemical processes of combustion. The motivation of this research is to perform a comprehensive study on the characteristics of production and combustion of composite pellet. It served as a basis for a multi-criteria evaluation encompassing energy, economic and environmental components. The study reports experimental findings on the effect of straw and cardboard in the composition of wood pellets. The proportion of additives was varied from 10 wt% to 50 wt%. The addition of cardboard and straw to wood pellets increased their density by 3–15 %. The maximum vibration durability was exhibited by wood pellets and pellets with 50 wt% of cardboard. The use of straw in fuel pellets reduced the gas-phase ignition delay times by 30 % compared to pellets without additives. The co-combustion of straw and wood was found to yield almost 30 % lower emissions of СО2. The concentrations of СО and SO2 in the composition of flue gases produced by the combustion of composite pellets decreased by 15–60 % and 21–64%, respectively. A multi-criteria analysis revealed that the use of cardboard, straw and carboxymethylcellulose increased the efficiency indicator by 6 % relative to pellets without additives.

Keywords: Pellet; Biomass; Municipal solid waste; Combustion; Emissions; Mechanical properties (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:250:y:2025:i:c:s0960148125009310

DOI: 10.1016/j.renene.2025.123269

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