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<p>This study systematically evaluates three methodologies for quantifying the heat required for biomass pyrolysis (HRP), namely differential scanning calorimetry (DSC), power monitoring, and heat balance calculation, employing four typical agricultural residues (camellia shell, tobacco stalk, cassava straw, and eucalyptus) as substrates. DSC analysis, conducted under nitrogen atmosphere with heating rates of 10, 20, and 30 °C/min, yields HRP values in the range of –0.472 to –1.123 MJ/kg. Additionally, experiments were carried out on a screw pyrolyzer equipped with an energy monitor to obtain the HRP. The HRP, as determined by the energy meter, ranges from 0.756 to 0.936 MJ/kg. Conversely, the HRP calculated through the heat balance method varies from 2.026 to 2.672 MJ/kg.</p>

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Comparative analysis of three methods for measuring the heat required for biomass pyrolysis

  • 期刊论文

  • 发表日期：

    2025年8月23日

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  • Zonglin Li,
  • Weizheng Shao,
  • Yan Sun,
  • Yongzhi Ren

摘要

This study systematically evaluates three methodologies for quantifying the heat required for biomass pyrolysis (HRP), namely differential scanning calorimetry (DSC), power monitoring, and heat balance calculation, employing four typical agricultural residues (camellia shell, tobacco stalk, cassava straw, and eucalyptus) as substrates. DSC analysis, conducted under nitrogen atmosphere with heating rates of 10, 20, and 30 °C/min, yields HRP values in the range of –0.472 to –1.123 MJ/kg. Additionally, experiments were carried out on a screw pyrolyzer equipped with an energy monitor to obtain the HRP. The HRP, as determined by the energy meter, ranges from 0.756 to 0.936 MJ/kg. Conversely, the HRP calculated through the heat balance method varies from 2.026 to 2.672 MJ/kg.