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<p>This study investigates the influence of catalytic clay material on the pyrolysis of sugarcane leaves using TGA. Pyrolysis was performed from 35 to 800&#xa0;°C at the rates of 10, 15, and 20&#xa0;°C/min. Biomass samples were mixed with 10 and 50% clay with biomass samples. TGA-DTG analysis showed that the catalyst significantly affected biomass decomposition rates. However, variations in clay content had a minimal impact. Kinetic parameters were determined with and without catalysts in different proportions. Various iso-conversional techniques, which are model-free, were used, including FWO, Starink, DAEM, and Vyazovkin AIC methods. The presence of MMT clay reduced the energy of activation from 171.15 to 166.57&#xa0;kJ/mol, highlighting its catalytic efficiency. The reaction mechanism has been discussed using the master plot procedure. The incorporation of MMT clay facilitated enhanced thermal stability and optimized biomass conversion, making it a promising approach for biofuel production. The findings contribute valuable insights into the role of clay-based catalysts in improving pyrolysis kinetics and thermal decomposition pathways, offering potential for industrial-scale bioenergy applications.</p> Graphical abstract <p></p>

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Catalytic pyrolysis of sugarcane leaves with montmorillonite clay: unraveling kinetics and reaction mechanisms

  • 期刊论文

  • 发表日期：

    2025年5月29日

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  • Mohit Kumar,
  • Himanshu Sharma

摘要

This study investigates the influence of catalytic clay material on the pyrolysis of sugarcane leaves using TGA. Pyrolysis was performed from 35 to 800 °C at the rates of 10, 15, and 20 °C/min. Biomass samples were mixed with 10 and 50% clay with biomass samples. TGA-DTG analysis showed that the catalyst significantly affected biomass decomposition rates. However, variations in clay content had a minimal impact. Kinetic parameters were determined with and without catalysts in different proportions. Various iso-conversional techniques, which are model-free, were used, including FWO, Starink, DAEM, and Vyazovkin AIC methods. The presence of MMT clay reduced the energy of activation from 171.15 to 166.57 kJ/mol, highlighting its catalytic efficiency. The reaction mechanism has been discussed using the master plot procedure. The incorporation of MMT clay facilitated enhanced thermal stability and optimized biomass conversion, making it a promising approach for biofuel production. The findings contribute valuable insights into the role of clay-based catalysts in improving pyrolysis kinetics and thermal decomposition pathways, offering potential for industrial-scale bioenergy applications.

Graphical abstract