Abstract
In this study, the combustion behaviors of heavy oil and low temperature oxidation products were analyzed by differential scanning calorimetry (DSC) technique. The results elucidated that the coke formed after static oxidation showed the highest heat release (24.03 kJ/g), which was a positive signal for the in-situ combustion (ISC) process of Tahe heavy oil. The most abundant asphaltenes in heavy oil and residue contributed more fuel for high temperature oxidation (HTO), resulting the two samples to exhibit intense HTO reactions. In summary, activation energies of the samples in the low temperature oxidation (LTO) were higher than that in HTO region.
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