THERMAL BEHAVIOR OF RAW OIL SHALE AND ITS COMPONENTS; pp. 160–171Full article in PDF format | doi: 10.3176/oil.2015.2.06
In this study, the thermal behavior of dawsonite, nahcolite, quartz, dolomite, albite, illite, analcime, kerogen and raw oil shale samples is discussed. Thermal Gravimetric Analysis (TGA), Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Differential Scanning Calorimetry (DSC) were used to study the thermal properties of the samples. The DSC dynamic experiments were performed in CO2 and N2 atmospheres. The influence of purge gases on the thermal decomposition of kerogen, dawsonite and nahcolite was investigated. In the DSC experiments, the heating rate did not change the decomposition mechanism of both dawsonite and nahcolite and the Tp (the sample temperature at which the maximum deflection in the DSC curve is recorded) of dawsonite and nahcolite could be moved to higher temperatures by purging CO2.
1. Külaots, I., Goldfarb, J. L., Suuberg, E. M. Characterization of Chinese, American and Estonian oil shale semicokes and their sorptive potential. Fuel, 2010, 89(11), 3300–3306.
2. Benezeth, P., Palmer, D. A., Anovitz, L. M., Horita, J. Dawsonite synthesis and reevaluation of its thermodynamic properties from solubility measurements: Implications for mineral trapping of CO2. Geochim. Cosmochim. Ac., 2007, 71(18), 4438–4455.
3. Altun, N. E., Hicyilmaz, C., Hwang, J.-Y., Suat Bağci, A., Kök, M. V. Oil shales in the world and Turkey; reserves, current situation and future prospects: a review. Oil Shale, 2006, 23(3), 211–227.
4. Mohamed, S. A. E. K. Oil Shale Technology and Efficient Utilization of Oil Shale Resources in Egypt. In: SPE Annual Technical Conference & Exhibition, (ATCE 2012), San Antonio, Texas, USA, 8–10 October 2012, Vol. 6, 4788 (SPE 160910-STU).
5. Zhao, P.W., Zhao, Y. J., Zou, C. J., Gu, T. Study on ultrasonic extraction of kerogen from Huadian oil shale by solvents. Oil Shale, 2013, 30(4), 491–500.
6. Li, G. X., Han, D. Y., Cao, Z. B., Yuan, M. M., Zai, X. Y. Studies on Fushun shale oil furfural refining. Oil Shale, 2011, 28(3), 372–379.
7. Berkovich, A. J., Levy, J. H., Schmidt, S. J., Young, B. R. Heat capacities and enthalpies for some Australian oil shales from non-isothermal modulated DSC. Thermochim. Acta, 2000, 357–358, 41–45.
8. Loughnan, F. C., See, G. T. Dawsonite in the Greta Coal Measures at Muswellbrook, New South Wales. Am. Mineral., 1967, 52, 1216–1219.
9. Aboulkas, A., El Harfi, K. Study of the kinetics and mechanisms of thermal decomposition of Moroccan Tarfaya oil shale and its kerogen. Oil Shale, 2008, 25(4), 426–443.
10. Huggins, C. W., Green, T. Thermal decomposition of dawsonite. Am. Mineral., 1973, 58(5–6), 548–550.
11 Pelovski, Y., Petkova, V. Investigation on thermal decomposition of pyrite. Part I. J. Therm. Anal. Calorim., 1999, 56, 95–99.
12. Kok, M. V. Thermal investigation of Seyitomer oil shale. Thermochim. Acta, 2001, 369(1–2), 149–155.
13. Rajeshwar, K., Nottenburg, R., Dubow, J. Review. Thermophysical properties of oil shales. J. Mater. Sci., 1979, 14, 2025–2052.
14. Pinheiro, G., Lourenco, V., Iha, K. Influence of the heating rate in the thermal decomposition of HMX. J. Therm. Anal. Calorim., 2002, 67(2), 445–452.
15. Warne, S. S. J., Dubrawski, J. V. Applications of DTA and DSC to coal and oil shale evaluation. J. Therm. Anal., 1989, 35, 219–242.
16. Bamford, C. H., Tipper, C. F. H. (eds.). Comprehensive Chemical Kinetics. Vol. 32. Elsevier, Amsterdam, 1980.
17. Atkins, P., de Paula, J. Atkins’ Physical Chemistry. 9th ed. Oxford, New York, 2010.
18. Palayangoda, S. S., Nguyen, Q. P. An ATR-FTIR procedure for quantitative analysis of mineral constituents and kerogen in oil shales. Oil Shale, 2012, 29(4), 344–356.
19. Hu, Y., Devegowda, D., Striolo, A., Civan, F. Microscopic dynamics of water and hydrocarbon in shale-kerogen pores of potentially mixed-wettability. In: 2013 SPE Unconventional Resources Conference, Alberta, Canada, 5–7 November 2013 (SPE 167234).20. Levy, J. H., Stuart, W. I. Thermal properties of Australian oil shales: Characterization by thermal analysis and infrared spectrophotometry. In: American Chemical Society St. Louis Meeting, April 8–13, 1984, 61–70.
Back to Issue