Pyrolysis kinetics of potassium-impregnated rubberwood analyzed by evolutionary computation

Yu Ying Lin, Wei Hsin Chen, Baptiste Colin, Bo Jhih Lin, François Leconte, Anelie Pétrissans, Mathieu Pétrissans

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

To explore the catalytic effect of potassium on pyrolysis characteristics of biomass, the rubberwood is pyrolyzed by a thermogravimetric analyzer. The samples are impregnated by three concentrations of potassium carbonate (0.004 M, 0.008 M, and 0.012 M). The pyrolysis kinetics is analyzed by an independent parallel reaction (IPR) model to describe the catalytic effect on the four-pseudo components model in the rubberwood. The particle swarm optimization (PSO) is adopted to optimize the fit quality between the established kinetic models and experimental data. It is found that the pyrolysis of rubberwood impregnated with 0.012 M concentration of K2CO3 can reduce the activation energy of cellulose from 223.86 to 204.14 kJ mol−1, whereas there is no obvious effect on the activation energies of hemicelluloses and lignin. The starting temperature and ending temperature of cellulose thermodegradation also move toward lower temperatures, indicating that the addition of potassium enhances the degradation of cellulose.

原文English
文章編號124145
期刊Bioresource technology
319
DOIs
出版狀態Published - 2021 1月

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 環境工程
  • 可再生能源、永續發展與環境
  • 廢物管理和處置

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