Thermal reactivity of rapeseed (Brassica napus L.) under different gas atmospheres

H. Haykiri-Acma, S. Yaman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Non-isothermal thermogravimetric method was applied to rapeseed to investigate its thermal reactivity under both individual dynamic atmospheres of nitrogen, steam, carbon dioxide and dry air, and under several mixtures of these gases (nitrogen + steam), (steam + dry air), and (nitrogen + carbon dioxide + steam). In this method, the sample was heated from ambient to 1273 K with a constant heating rate of 20 K/min. The trend of the TGA curves and the derived DTG profiles were interpreted regarding the conversion yields and the reactivity of the samples. Conversion yields of biomass to gaseous products changed in the range of 75-94% on original basis, with respect to the atmosphere under which the experiment was carried out. The maximum rates of the mass losses from the sample were found between 2.6 and 4.3 mg/min. The activation energies were calculated using the method of Coats-Redfern, and varied between 21.3 and 96.0 kJ/mol.

Original languageEnglish
Pages (from-to)237-242
Number of pages6
JournalBioresource Technology
Issue number2
Publication statusPublished - Jan 2008


  • Biomass
  • Gasification
  • Rapeseed
  • Thermal reactivity
  • Thermogravimetry


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