Temperature-controlled combustion and kinetics of different rank coal samples

KÖK M. V.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.79, sa.1, ss.175-180, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 79 Sayı: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1007/s10973-004-0581-6
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.175-180
  • Anahtar Kelimeler: coal, differential scanning calorimetry, lignite, reaction kinetics, thermal analysis, thermogravimetry, THERMAL-ANALYSIS, REACTIVITY, OXIDATION, LIGNITES, CHAR
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Differential scanning calorimetry (DSC) and thermogravimetry (TG/DTG) has been used to obtain information on the temperature-controlled combustion characteristics of seventeen coals of different origin from Thrace basin of Turkey. Experiments were performed in air atmosphere up to 600degreesC at a heating rate of 10degrees min(-1). The DSC/TG curves clearly demonstrate distinct transitional stages in the entire coal samples studied. Reaction intervals, peak and burn-out temperatures of the coal samples are also determined. Two different kinetic methods known as, Arrhenius and Coats-Redfern, were used to analyze the kinetic data and the results are discussed.