Contribution of thermal analysis and kinetics of Siberian and Tatarstan regions crude oils for in situ combustion process
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.122, sa.3, ss.1375-1384, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 122 Sayı: 3
- Basım Tarihi: 2015
- Doi Numarası: 10.1007/s10973-015-4892-6
- Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1375-1384
- Anahtar Kelimeler: Crude oil, Thermal analysis, TG, Calorimetry, Kinetics, In situ combustion
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
This research focused on the characterization and kinetics of Siberian and Tatarstan crude oils by gas chromatography, combustion calorimetry, and thermogravimetry (TG-DTG) techniques. Calorimetric experiments show that crude oil with higher saturate content and low resin fraction has higher heating value. TG-DTG curves indicates that the crude oils undergoes two major transitions when subjected to an oxidizing and constant rate environment known as low- and high-temperature oxidations at each heating rate studied. Kinetic analysis in the low- and high-temperature oxidation regions was performed using model-free methods knows as Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose. Throughout the study, it was observed that the activation energy values of the crude oil samples are varied between 41-72 and 145-198 kJ mol(-1) in low- and high-temperature oxidation regions, respectively.