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Biomed Res Int. 2013;2013:162907. doi: 10.1155/2013/162907. Epub 2013 Nov 19.

Pyrolytic and kinetic analysis of two coastal plant species: Artemisia annua and Chenopodium glaucum.

Author information

  • 1Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 17 Chunhui Road, Laishan District, Yantai 264003, China.
  • 2Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 17 Chunhui Road, Laishan District, Yantai 264003, China ; Tianjin Key Laboratory of Animal and Plant Resistance/College of Life Science, Tianjin Normal University, Tianjin 300387, China.
  • 3Tianjin Key Laboratory of Animal and Plant Resistance/College of Life Science, Tianjin Normal University, Tianjin 300387, China ; Tianjin Aquatic Animal Infectious Disease Control and Prevention Center, Tianjin 300221, China.
  • 4Tianjin Key Laboratory of Animal and Plant Resistance/College of Life Science, Tianjin Normal University, Tianjin 300387, China.

Abstract

The large amount of coastal plant species available makes them ideal candidates for energy production. In this study, thermogravimetric analysis was used to evaluate the fuel properties of two coastal plant species, and the distributed activation energy model (DAEM) was employed in kinetic analysis. The major mass loss due to devolatilization started at 154 and 162°C at the heating rate of 10°C min(-1) for Artemisia annua and Chenopodium glaucum, respectively. The results showed that the average activation energies of Artemisia annua and Chenopodium glaucum were 169.69 and 170.48 kJ mol(-1), respectively. Furthermore, the activation energy changed while the conversion rate increased, and the frequency factor k 0 decreased greatly while the activation energy decreased. The results also indicated that the devolatilization of the two coastal plant species underwent a set of first-order reactions and could be expressed by the DAEM. Additionally, a simplified mathematical model was proposed to facilitate the prediction of devolatilization curves.

PMID:
24350245
[PubMed - indexed for MEDLINE]
PMCID:
PMC3852807
Free PMC Article
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