Evaluation of the kinetic parameters for the thermal decomposition of natural Turkish limestones from their thermogravimetric curves using a computer programme

Erosy-Mericboyu A., Kucukbayrak S., Durus B.

Journal of thermal analysis, cilt.39, sa.6, ss.707-714, 1993 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 6
  • Basım Tarihi: 1993
  • Dergi Adı: Journal of thermal analysis
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.707-714
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The kinetic parameters, activation energy (E) and reaction order (n), of the thermal decomposition of various natural Turkish limestones were evaluated from non-isothermal TG curves by using a BASIC computer programme. The TG curves of 18 different natural limestones were obtained under identical experimental conditions. In the computer programme developed in this study a kinetic equation based on the Coats-Redfern method was used. A kinetic compensation effect between the Arrhenius parameters (E and log A) was observed and this effect was expressed as log A=0.215·E-1.872.