Characterization and Combustion Kinetics of Chars Obtained from Loquat Stones
Hale Sutcu, Sabriye Piskin
article (Uluslararası, Hakemli) | Yazar(lar): Hale Sutcu, Sabriye Piskin | Yıl: 2009 | Dergi/Kurum: COMBUSTION SCIENCE AND TECHNOLOGY | İndeks: WOS.SCI | DOI: 10.1080/00102200802424633 | Anahtar Kelimeler: Arrhenius, Char, Coats and Redfern, Combustion, Horowitz and Metzger, Ingraham and Marier, Loquat stone, Thermogra
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.