The shale oils of oil shales from Mongolian Khoot, Tesegtiin honhor, Uvurjargalant and Zuun bulag deposits, as well as their distillates were studied by the hydrodesulfurization (HDS), hydrodenitrogenation (HDN) and hydrodeoxygenation (HDO) processes for the possibility of improving the quality of liquid products. Elemental and chemical compositions of the shale oils, distillates and hydrotreated oils were examined qualitatively and quantitatively, using a Thermo Scientific FLASH2000 CHNS analyzer and an Agilent 6890A gas chromatograph (GC). Hydrotreatment of Khoot shale oil (KH) under different reaction conditions showed that with increasing reaction temperature from 330 to 370 °C, HDN, HDS and HDO increased from 13 to 37%, from 65 to 92% and from 59 to 81%, respectively. Among the shale oils hydrotreated at a temperature of 350 °C for 2h, the Uvurjargalant shale oil (UJ) had the highest conversion by HDN (39%), HDS (89%) and HDO (71%).
1. Landau, M. V. Deep hydrotreating of middle distillates from crude and shale oils. Catal. Today, 1997, 36(4), 393–429.
https://doi.org/10.1016/S0920-5861(96)00233-7
2. Narangerel, J., Sugimoto, Y. Removal of nitrogen compounds before deep hydrotreatment of synthetic crude oils. J. Jpn. Petrol. Inst., 2008, 51(3), 165–173.
https://doi.org/10.1627/jpi.51.165
3. Avid, B., Purevsuren, B., Dugarjav, J. Pyrolysis and thermogravimetric investigation of the Mongolian Khoot oil shale. Oil Shale, 2000, 17(3), 241–251.
4. Purevsuren, B., Ochirbat, P. Comparative study of pyrolysis and thermal dissolution of Estonian and Mongolian Khoot oil shales. Oil Shale, 2016, 33(4), 329–339.
https://doi.org/10.3176/oil.2016.4.02
5. Harvey, T. G., Matheson, T. W., Pratt, K. C., Stanborough, M. S. Studies of the batch hydrotreatment of Rundle shale oil. Fuel, 1985, 64(7), 925–930.
https://doi.org/10.1016/0016-2361(85)90145-0
6. Holmes, S. A., Thompson, L. F. Nitrogen compound distributions in hydrotreated shale oil products from commercial-scale refining. Fuel, 1983, 62(6), 709–717.
https://doi.org/10.1016/0016-2361(83)90312-5
7. Shin, S., Yang, H., Sakanishi, K., Mochida, I., Grudoski, D. A., Shinn, J. H. Inhibition and deactivation in staged hydrodenitrogenation and hydrodesulfurization of medium cycle oil over NiMoS/Al2O3 catalyst. Appl. Catal. A, 2001, 205(1–2), 101–108.
https://doi.org/10.1016/S0926-860X(00)00541-X
