Non-isothermal DSC and TG/DTG analysis of the combustion of silopi asphaltites

KÖK M. V.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol.88, no.3, pp.663-668, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 88 Issue: 3
  • Publication Date: 2007
  • Doi Number: 10.1007/s10973-006-8028-x
  • Journal Name: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.663-668
  • Keywords: coal, combustion, kinetics, thermal analysis, PARTICLE-SIZE, PYROLYSIS KINETICS, HEATING RATE, OIL SHALES, COAL, REACTIVITY, PARAMETERS, OXIDATION, SAMPLES
  • Middle East Technical University Affiliated: Yes

Abstract

In this research, non-isothermal combustion and kinetics of Silopi (Turkey) asphaltite samples were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG/DTG). A sample size of 10 mg, heating rates of 5, 10, 15 and 200C min(-1) were used in the temperature range of 20-600 degrees C, under air atmosphere. Two reaction regions were observed in DSC curves. The first region is due to the evaporation of moisture in asphaltite sample whereas, release of volatile matter and burning of carbon is called the second region.