COMPARISON BETWEEN METHODOLOGIES FOR THE CALCULATION OF KINETIC TRIPLET FOR THE PYROLYSIS OF HETEROGENEOUS BIOMASS (SUNFLOWER SEED HUSKS)
The pyrolytic kinetics of sunflower seed husks (SSH) are investigated based on previous activation energy data. By applying the kinetic compensation effect (KCE), the average value of the frequency factor was 3.517 × 109 s-1. Through the numerical reconstruction, the two-dimensional reaction model,...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2025-08-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000800301&tlng=en |
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| Summary: | The pyrolytic kinetics of sunflower seed husks (SSH) are investigated based on previous activation energy data. By applying the kinetic compensation effect (KCE), the average value of the frequency factor was 3.517 × 109 s-1. Through the numerical reconstruction, the two-dimensional reaction model, based on diffusion phenomena, [-ln(1 - α)]-1, best represented the pyrolysis of SSH; where α is the mass conversion of the material. The calculated kinetic parameters efficiently predicted experimental kinetic behavior since they presented lower deviations, with a maximum magnitude of 6%. These results indicated that the proposed methodology was suitable to describe the pyrolysis of SSH. This work is the first study on the kinetic triplet for the pyrolysis of heterogeneous biomass (SSH) using the KCE, with the construction of theoretical curves and the comparison with master plots methodology. |
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| ISSN: | 1678-7064 |