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<p>This study investigates the hydrogen production via peanut shell gasification to address the growing global energy demand and environmental issues. A gasification model is established using Aspen Plus software. The effect of gasification agents (steam, air) on syngas composition, H<sub>2</sub>/CO ratio, lower heating value (LHV), carbon conversion efficiency, gasification efficiency, and gas yield are systematically analyzed. The results show that under atmospheric pressure and steam gasification conditions, temperature plays a significant role, with the H<sub>2</sub> concentration reaching up to 53.63%. LHV first increases and then decreases, while carbon conversion efficiency can reach 82.59%. Gasification efficiency and gas yield increase with higher temperature. Additionally, increasing pressure suppresses H<sub>2</sub> formation, with atmospheric pressure being the optimal condition. In air gasification, H<sub>2</sub> yield is low, and CO concentration is high, reaching up to 50.42%. LHV shows a decreasing trend, and gas yield is higher. Sensitivity analysis indicates that the optimal conditions for H<sub>2</sub> production in the air-steam co-gasification process are at a reaction temperature of 700&#xa0;°C, ER (equivalence ratio) = 0.18, and S/B (Steam-to-biomass ratio) = 0.8 under atmospheric pressure. This study provides a theoretical basis for the engineering application of peanut shell gasification for H<sub>2</sub> production.</p>

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Simulation and experimental research on hydrogen production characteristics from pyrolysis and gasification of waste peanut shells based on Aspen plus

  • 期刊论文

  • 发表日期：

    2026年2月7日

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  • Shaohui Zhang,
  • Guoyan Chen,
  • Haoxin Deng,
  • Tuo Zhou,
  • Cheng Wang,
  • Xiaoping Wen,
  • Fahui Wang,
  • Chenglong Yu

摘要

This study investigates the hydrogen production via peanut shell gasification to address the growing global energy demand and environmental issues. A gasification model is established using Aspen Plus software. The effect of gasification agents (steam, air) on syngas composition, H2/CO ratio, lower heating value (LHV), carbon conversion efficiency, gasification efficiency, and gas yield are systematically analyzed. The results show that under atmospheric pressure and steam gasification conditions, temperature plays a significant role, with the H2 concentration reaching up to 53.63%. LHV first increases and then decreases, while carbon conversion efficiency can reach 82.59%. Gasification efficiency and gas yield increase with higher temperature. Additionally, increasing pressure suppresses H2 formation, with atmospheric pressure being the optimal condition. In air gasification, H2 yield is low, and CO concentration is high, reaching up to 50.42%. LHV shows a decreasing trend, and gas yield is higher. Sensitivity analysis indicates that the optimal conditions for H2 production in the air-steam co-gasification process are at a reaction temperature of 700 °C, ER (equivalence ratio) = 0.18, and S/B (Steam-to-biomass ratio) = 0.8 under atmospheric pressure. This study provides a theoretical basis for the engineering application of peanut shell gasification for H2 production.