EVALUATION OF THE KINETIC-PARAMETERS FOR THE THERMAL-DECOMPOSITION OF NATURAL TURKISH LIMESTONES FROM THEIR THERMOGRAVIMETRIC CURVES USING A COMPUTER-PROGRAM


ERSOYMERICBOYU A., KUCUKBAYRAK S., DURUS B.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.39, ss.707-714, 1993 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 39 Konu: 6
  • Basım Tarihi: 1993
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Sayfa Sayıları: ss.707-714

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 [1] 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.