Torrefaction thermogravimetric analysis and kinetics of sorghum distilled residue for sustainable fuel production

Shih Wei Yen, Wei Hsin Chen, Jo Shu Chang, Chun Fong Eng, Salman Raza Naqvi, Pau Loke Show

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

This study investigated the kinetics of isothermal torrefaction of sorghum distilled residue (SDR), the main byproduct of the sorghum liquor-making process. The samples chosen were torrefied isothermally at five different temperatures under a nitrogen atmosphere in a thermogravimetric analyzer. Afterward, two different kinetic methods, the traditional model-free approach, and a two-step parallel reaction (TPR) kinetic model, were used to obtain the torrefaction kinetics of SDR. With the acquired 92-97% fit quality, which is the degree of similarity between calculated and real torrefaction curves, the traditional method approached using the Arrhenius equation showed a poor ability on kinetics prediction, whereas the TPR kinetic model optimized by the particle swarm optimization (PSO) algorithm showed that all the fit qualities are as high as 99%. The results suggest that PSO can simulate the actual torrefaction kinetics more accurately than the traditional kinetics approach. Moreover, the PSO method can be further employed for simulating the weight changes of reaction intermediates throughout the process. This computational method could be used as a powerful tool for industrial design and optimization in the biochar manufacturing process.

原文English
文章編號4246
期刊Sustainability (Switzerland)
13
發行號8
DOIs
出版狀態Published - 2021 4月 2

All Science Journal Classification (ASJC) codes

  • 地理、規劃與發展
  • 可再生能源、永續發展與環境
  • 環境科學(雜項)
  • 能源工程與電力技術
  • 管理、監督、政策法律

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