Kinetic analysis of DSC and thermogravimetric data on combustion of lignite

Kok M., Okandan E.

JOURNAL OF THERMAL ANALYSIS, cilt.46, sa.6, ss.1657-1669, 1996 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 6
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1007/bf01980771
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Index Islamicus, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1657-1669
  • Anahtar Kelimeler: activation energy, combustion, differential scanning calorimetry, kinetics, lignite, oxidation, thermogravimetric analysis, COMPUTER-PROGRAMS, THERMAL-ANALYSIS, MIXTURES
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Thermal analysis increasingly being used to obtain kinetic data relating to sample decomposition. This work involves a comparative study of several methods used to analyse DSC and TG/DTG data obtained on the oxidation of Beypazari lignite. A general computer program was developed and the methods are compared with regard to their accuracy and the ease of interpretation of the kinetics of thermal decomposition. For this study, the ratio method was regarded as the preferred method, because it permits the estimation of reaction order, activation energy and Arrhenius constant simultaneously from a single experiment.