Characterization of medium and heavy crude oils using thermal analysis techniques

Kok M. V.

FUEL PROCESSING TECHNOLOGY, cilt.92, sa.5, ss.1026-1031, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 92 Sayı: 5
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.fuproc.2010.12.027
  • Dergi Adı: FUEL PROCESSING TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1026-1031
  • Anahtar Kelimeler: Crude oil, Limestone, Combustion, Thermogravimetry, Differential scanning calorimeter, Kinetics, THERMOGRAVIMETRIC ANALYSIS, COMBUSTION KINETICS, PYROLYSIS, ASPHALTENES, BEHAVIOR, TEMPERATURE, FRACTIONS, FOSTERTON
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This study focused on the characterization of heavy and medium grade crude oils in limestone matrix using differential scanning calorimeter (DSC) and thermogravimetry (TG-DTG). DSC and TG-DTG curves produced for two different crude oils + limestone mixtures indicate that the crude oil undergoes two major transitions when subjected to an oxidizing and constant rate environment known as low- and high-temperature oxidation. Kinetic analysis in the low- and high-temperature oxidation regions were performed using two different kinetic methods. Throughout the study. it was observed that the activation energy values of the samples are varied between 2.40-10.62 and 42.3-181.9 kJ/mol in low- and high-temperature oxidation regions respectively. (C) 2011 Elsevier B.V. All rights reserved.