Geological and thermal characterization of EskiAYehir region oil shales

KÖK M. V., Senguler I.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol.116, no.1, pp.367-372, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 116 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1007/s10973-013-3537-x
  • Journal Name: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.367-372
  • Keywords: Oil shale, Rock-Eval, Differential scanning calorimeter, Thermogravimetry, Kinetics, KINETIC-ANALYSIS, COMBUSTION, DECOMPOSITION
  • Middle East Technical University Affiliated: Yes

Abstract

In this study, geological consideration and thermal characterization of oil shale samples were studied. Geological considerations of oil shale samples were studied using Rock-Eval analysis and it was observed that the kerogen type of all oil shale samples were in the majority of Type-I and II. Thermal characteristics and kinetics analysis of oil shale samples were studied by non isothermal differential scanning calorimeter (DSC) and thermogravimetry (TG/DTG). In air atmosphere, two different mechanisms causing loss of mass were observed known as loss of moisture, and decomposition of kerogen and bitumen. Kinetic parameters of the samples are determined using ASTM-I and II (DSC), Kissinger, and KAS (TG-DTG) kinetic models and the results are discussed.