Characterization and Combustion Kinetics of Chars Obtained from Loquat Stones

Sutcu H., Piskin S.

COMBUSTION SCIENCE AND TECHNOLOGY, vol.181, no.2, pp.264-273, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 181 Issue: 2
  • Publication Date: 2009
  • Doi Number: 10.1080/00102200802424633
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.264-273
  • Yıldız Technical University Affiliated: Yes


This paper describes the production of chars from loquat stones in a tube furnace at carbonization temperatures of 600C, 700C, and 800C in a nitrogen flow at a heating rate of 10C/min. The physical and chemical structures of the stones and chars were investigated by FTIR spectrometer, X-ray diffractometer, and SEM, as well as the combustion reaction and kinetic parameters based on the TG-DTG graphs obtained by thermogravimetric analysis. The combustion reaction was carried out at a heating rate 10C/min and an oxygen flow rate of 50ml/min up to 700C. The kinetic parameters were calculated using the methods by Arrhenius; Coats and Redfern; Horowitz and Metzger; and Ingraham and Marier.