Thermal analysis of Beypazari lignite

KÖK M. V.

JOURNAL OF THERMAL ANALYSIS, cilt.49, sa.2, ss.617-625, 1997 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 2
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1007/bf01996744
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.617-625
  • Anahtar Kelimeler: combustion, kinetics, lignite, thermal analysis, DIFFERENTIAL SCANNING CALORIMETRY, THERMOGRAVIMETRIC ANALYSIS, HEATING RATE, COAL, COMBUSTION, PYROLYSIS, MIXTURES
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Beypazari lignite was investigated by differential scanning calorimetry (DSC), thermogravimetry (TG), high pressure thermogravimetry (HPTG) and combustion cell experiments. All the experiments were conducted at non-isothermal heating conditions with a heating rate of 10 degrees C min(-1), in the temperature range of 20-700 degrees C. DSC-TG data were analysed using an Arrhenius-type reaction model assuming a first-order reaction. For the HPTG data the Coats and Redfern equation was used for kinetic analysis. In the combustion cell experiments the Fassihi and Brigham approach was used in order to calculate kinetic data. Finally a comparison is made between the kinetic results.