Lifecycle Assessment of a Non-Phase-Transition Drying Pyrolysis and Mass Conversion Technology

Yulei Gao, Jikang Jiang, Zheng Shen, Xu Zhang, Lingjie Zeng and Xiaolu Shao
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Yulei Gao: School of Mechanical Engineering, Institute of New Rural Development, Tongji University, Shanghai 201804, China
Jikang Jiang: School of Mechanical Engineering, Institute of New Rural Development, Tongji University, Shanghai 201804, China
Zheng Shen: School of Mechanical Engineering, Institute of New Rural Development, Tongji University, Shanghai 201804, China
Xu Zhang: School of Mechanical Engineering, Institute of New Rural Development, Tongji University, Shanghai 201804, China
Lingjie Zeng: School of Mechanical Engineering, Institute of New Rural Development, Tongji University, Shanghai 201804, China
Xiaolu Shao: School of Mechanical Engineering, Institute of New Rural Development, Tongji University, Shanghai 201804, China

Energies, 2021, vol. 14, issue 21, 1-13

Abstract: A lifecycle model was established to explore the efficiency, economy, and greenhouse gas emissions of a non-phase-transition drying pyrolysis and mass conversion technology, based on the principle of lifecycle assessment. The evaluation scope included straw collection and transportation, drying and crushing, biomass pyrolysis, charcoal processing, and waste heat utilization. The results show that the energy output/input ratio for non-phase-transition drying pyrolysis was 20.43, and the energy efficiency was high. The pure profit from treating wet straw was USD 45.32 per ton, the profit margin of sales was 52.11%, and the economic benefit was high. The equivalent emission of CO 2 was 34.10 g·MJ −1 , demonstrating high environmental benefits. Therefore, non-phase-transition drying pyrolysis and mass conversion technology is a potential biomass utilization technology with energy, economic, and ecological benefits.

Keywords: biomass; straw; lifecycle assessment; carbon emission (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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