Abstract
The objective of this study is to characterize the elemental and functional group analysis of oils obtained from the pyrolysis of oil sand bitumen with the aim of determining oil quality. For this purpose, the present study extracted bitumen from oil sand using toluene, thermally cracked the bitumen using a fixed bed reactor, chromatographically separated the derived oil into saturate and aromatic fractions, and employed Energy dispersive x-ray fluorescence and Fourier transform-infrared spectroscopy to characterize them. The results of the elemental analysis indicated that potassium had the highest mean concentration of about 531 mg/L and 552 mg/L in the saturate and aromatic fractions respectively. The mean elemental concentrations of the aromatic fraction were relatively higher than the saturate fraction. The functional group analysis showed the predominant presence of C-H (CH3) and C-H (CH2) groups, indicating the presence of aliphatic compounds in the pyrolytic oils, in addition to the presence of sulfur reflected by the sulphoxide index. The findings of the study provide valuable information on the feedstock potential of the pyrolysis oil in the petrochemical industry. This study provides baseline information required for exploitation of the heavy oil resource which is yet to be commercially mined in Nigeria.
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