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Influence of torrefaction on intrinsic bioconstituents of cotton stalk: TG-insights

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  • Gangil, Sandip
  • Bhargav, Vinod Kumar

Abstract

This is the first article presenting the detection of discrete and stratified nature of fringes in the lignin-related segment of the activation energy profile of a biomaterial. The torrefied biomaterial made from the cotton stalk was evaluated for intrinsic physico-chemical transformations in comparison with the raw cotton stalk. The intrinsic hemicellulose and cellulose components disappeared due to torrefaction process. Lignin was substantially noticed in torrefied biomaterial. Transitions of activation energy levels from raw to torrefied biomaterial were critically discussed and explained on the basis of Coats-Redfern kinetics. The patterned segregation of activation energy levels in the lignin degradation region, creating fringes like formations in activation energy profile, was noticed distinctly in the case of the torrefied biomaterial. These fringes were supposed to originate due to thermal stresses imposed on a biomaterial during the torrefaction process.

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  • Gangil, Sandip & Bhargav, Vinod Kumar, 2018. "Influence of torrefaction on intrinsic bioconstituents of cotton stalk: TG-insights," Energy, Elsevier, vol. 142(C), pages 1066-1073.
    • Handle: RePEc:eee:energy:v:142:y:2018:i:c:p:1066-1073
    DOI: 10.1016/j.energy.2017.10.128
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    1. Gangil, Sandip & Bhargav, Vinod Kumar, 2019. "Influences of binderless briquetting stresses on intrinsic bioconstituents of rice straw based solid biofuel," Renewable Energy, Elsevier, vol. 133(C), pages 462-469.
    2. Durga, Mattaparthi Lakshmi & Gangil, Sandip & Bhargav, Vinod Kumar, 2022. "Thermal influx induced biopolymeric transitions in paddy straw," Renewable Energy, Elsevier, vol. 199(C), pages 1024-1032.
    3. Jagadale, Manisha & Gangil, Sandip & Jadhav, Mahesh, 2023. "Enhancing fuel characteristics of jute sticks (Corchorus Sp.) using fixed bed torrefaction process," Renewable Energy, Elsevier, vol. 215(C).

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