Pyrolysis analysis and kinetics of crude oils

KÖK M. V., Karacan O.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.52, sa.3, ss.781-788, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 3
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1023/a:1010114624345
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.781-788
  • Anahtar Kelimeler: crude oil, differential scanning calorimetry, kinetics, pyrolysis, thermal analysis, thermogravimetry, THERMAL-CRACKING, COMBUSTION
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This research presents the results of an experimental study on the determination of pyrolysis behaviour and kinetics of six crude oils by differential scanning calorimetry (DSC) and thermogravimetry (TG/DTG). Crude oil pyrolysis indicated two main temperature ranges where loss of mass was observed. The first region between ambient to 400 degrees C was distillation. The second region between 400 and 600 degrees C was visbreaking and thermal cracking. Arrhenius-type kinetic model is used to determine the kinetic parameters of crude oils studied. It was observed that as crude oils gets heavier (degrees API decreases) cracking activation energy increases. Activation energy of cracking also show a general trend with asphaltene content.