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<p>The global energy crisis and climate change have intensified the search for sustainable alternatives to fossil fuels, with sugarcane bagasse emerging as a promising biomass feedstock. This study investigates the integrated pyrolysis and pelletization of Suphanburi-50 sugarcane bagasse to optimize bioenergy production. Fast pyrolysis (100&#xa0;°C/min) yielded 57.4% bio-oil with 20.4&#xa0;MJ/kg heating value (HHV), while slow pyrolysis (5&#xa0;°C/min) produced 60.7% biochar (30.0&#xa0;MJ/kg) and energy-rich syngas (5.59&#xa0;MJ/m³). Bio-oil characterization identified oxygenated compounds, including furans (27.28%), phenols (19.80%), and carboxylic acids (14.40%), while biochar showed enhanced fuel properties suitable for co-combustion. Kinetic analysis revealed an activation energy of 44.42&#xa0;kJ/mol, confirming suitability for slow pyrolysis. Pelletization at 12% moisture achieved high durability (96.8 Shore A), a bulk density of 848&#xa0;kg/m³, and HHV of 18.4&#xa0;MJ/kg, and met ENPlus and Thailand Pellet Standards. Economic analysis showed pelletization as the most viable small-scale option (NPV: 4.5&#xa0;million THB, IRR: 61%, PBP: 0.79 years), while slow pyrolysis offered higher long-term returns (NPV: 8.8&#xa0;million THB, IRR: 38%). Fast pyrolysis, despite higher oil yield, had lower profitability (NPV: 5.8&#xa0;million THB, IRR: 29%). The results demonstrate that integrated thermochemical conversion can enhance bagasse valorization, with pelletization being optimal for SMEs and slow pyrolysis for diversified bioenergy production.</p> Graphical abstract <p></p>

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Characteristics of sugarcane bagasse-based biofuels produced by pelletization and pyrolysis

  • 期刊论文

  • 发表日期：

    2026年1月23日

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  • Rattana Jariyaboon ,
  • Arisara Benmad ,
  • Edy Kurniawan ,
  • Jutarut Wongpattanaphon ,
  • Prawit Kongjan

摘要

The global energy crisis and climate change have intensified the search for sustainable alternatives to fossil fuels, with sugarcane bagasse emerging as a promising biomass feedstock. This study investigates the integrated pyrolysis and pelletization of Suphanburi-50 sugarcane bagasse to optimize bioenergy production. Fast pyrolysis (100 °C/min) yielded 57.4% bio-oil with 20.4 MJ/kg heating value (HHV), while slow pyrolysis (5 °C/min) produced 60.7% biochar (30.0 MJ/kg) and energy-rich syngas (5.59 MJ/m³). Bio-oil characterization identified oxygenated compounds, including furans (27.28%), phenols (19.80%), and carboxylic acids (14.40%), while biochar showed enhanced fuel properties suitable for co-combustion. Kinetic analysis revealed an activation energy of 44.42 kJ/mol, confirming suitability for slow pyrolysis. Pelletization at 12% moisture achieved high durability (96.8 Shore A), a bulk density of 848 kg/m³, and HHV of 18.4 MJ/kg, and met ENPlus and Thailand Pellet Standards. Economic analysis showed pelletization as the most viable small-scale option (NPV: 4.5 million THB, IRR: 61%, PBP: 0.79 years), while slow pyrolysis offered higher long-term returns (NPV: 8.8 million THB, IRR: 38%). Fast pyrolysis, despite higher oil yield, had lower profitability (NPV: 5.8 million THB, IRR: 29%). The results demonstrate that integrated thermochemical conversion can enhance bagasse valorization, with pelletization being optimal for SMEs and slow pyrolysis for diversified bioenergy production.

Graphical abstract