Characterization, correlation and kinetics of dolomite samples as outlined by thermal methods

KÖK M. V., Kloss S.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol.91, no.2, pp.565-568, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 91 Issue: 2
  • Publication Date: 2008
  • Doi Number: 10.1007/s10973-007-8560-3
  • Journal Name: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.565-568
  • Keywords: chemical structure, decomposition, dolomite, thermal analysis, X-ray, CRUDE-OIL COMBUSTION, PROCEDURAL VARIABLES, DECOMPOSITION, PYROLYSIS, TEMPERATURE, ATMOSPHERE, LIMESTONE, DIOXIDE, TG/DTG, SHALES
  • Middle East Technical University Affiliated: Yes

Abstract

In this study, the decomposition behavior of four dolomite samples of different origin was studied by X-ray diffractometer and simultaneous TG-DTA experiments. Three different decomposition regions were determined known as dehydration of inter-particle water, formation of MgO and calcite and decomposition of calcite. Kinetic analysis of these decomposition regions was analyzed and the related activation energies are determined. It was observed that the activation energies were in the range of 48-137 kJ mol(-1).