Effects of Different Biomass Types on Pellet Qualities and Processing Energy Consumption

Yantao Yang, Lei Song, Yuanna Li, Yilin Shen, Mei Yang, Yunbo Wang, Hesheng Zheng, Wei Qi and Tingzhou Lei ()
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Yantao Yang: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China
Lei Song: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China
Yuanna Li: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China
Yilin Shen: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China
Mei Yang: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China
Yunbo Wang: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China
Hesheng Zheng: M.I.P Technology (Changzhou) Co., Ltd., Changzhou 213164, China
Wei Qi: Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
Tingzhou Lei: Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China

Agriculture, 2025, vol. 15, issue 3, 1-19

Abstract: This work conducts a single-factor experiment to study the effects of biomass types on the relax density, volume expansion, durability, hydrophobicity, and processing energy consumption. We analyze the differences in the quality of the pellets, and optimize the compaction conditions suitable for different biomass types including straw, hardwood, shell, and herbaceous plant. The results indicated that with a compressing force of 60~1500 N, compressing time of 10 s, powder size of less than 0.5 mm, and moisture content of 10%, the relax densities of corn straw, rice straw, selenium-rich rice straw, weigela japonica branches, and camphor leaves range from 360 to 820 kg/m 3 , with a processing energy consumption of 17,360 to 28,740 J/kg; meanwhile, the relax densities of argy wormwood, forage grass, green grass, and peanut shells range from 340 to 840 kg/m 3 , with a processing energy consumption of 33,510 to 73,700 J/kg. Therefore, the compaction pretreatment effectively regulates the density of biomass pellets and reduces the processing energy consumption. This study analyzed the differences in the quality of pellets caused by the inherent characteristics of biomass, providing strong support for the directional depolymerization and enhanced pretreatment technology for the scaled production of biomass alcohol fuels.

Keywords: biomass type; physicochemical property; compaction; pellet quality; processing energy consumption (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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