In this paper, the catalytic pyrolysis of Jimsar oil shale was studied using CoCl2·6H2O as a catalyst. The thermogravimetric analysis (TGA) was carried out on oil shale samples with the catalyst added. The kinetic analysis of the pyrolysis reaction of each sample was performed using the main curve method and several model-free methods. The results showed that CoCl2·6H2O could not only reduce the average activation energy of oil shale pyrolysis from 216 kJ/mol to 163 kJ/mol, but also decrease the pyrolysis temperature by about 100 °C.
1. Bakr, M. Y., Yokono T., Sanada, Y., Akiyama, M. Role of pyrite during the thermal degradation of kerogen using in situ high-temperature ESR technique. Energy Fuels, 1991, 5(3), 441‒444.
https://doi.org/10.1021/ef00027a014
2. Han, B. Effect of Pyrite on the Pyrolysis of Organic Matter and its Semi-Coke Functional Groups in Longkou Oil Shale. Ph.D. Thesis, Harbin Institute of Technology, 2016 (in Chinese).
3. Zhang, J. L., Zhang, P. Z. A discussion of pyrite catalysis on the hydrocarbon generation process. Advances in Earth Sciences, 1996, 11(3), 282‒287 (in Chinese).
4. Jiang, H. F., Song, L. H., Cheng, Z. Q., Chen, J., Zhang, L., Zhang, M. Y., Hu, M. J., Li, J. N., Li, J. F. Influence of pyrolysis condition and transition metal salt on the product yield and characterization via Huadian oil shale pyrolysis. J. Anal. Appl. Pyrolysis, 2015, 112, 230‒236.
https://doi.org/10.1016/j.jaap.2015.01.020
5. Holstein, W. L., Boudart, M. Transition metal and metal oxide catalysed gasification of carbon by oxygen, water, and carbon dioxide. Fuel, 1983, 62(2), 162‒165.
https://doi.org/10.1016/0016-2361(83)90190-4
6. Pan, L. W. Study on the Pyrolysis Characteristics of Jimsar Oil Shale and the Theory and Simulation of Dry Distillation Furnace. Ph.D. Thesis, Wuhan University of Science and Technology, 2017 (in Chinese).
7. Li, S. Y., Yue, C. G. Study of pyrolysis kinetics of oil shale. Fuel, 2003, 82(3), 337‒342.
https://doi.org/10.1016/S0016-2361(02)00268-5
8. Bar, H., Ikan, R., Aizenshtat, Z. Comparative study of the isothermal pyrolysis kinetic behaviour of some oil shales and coals. J. Anal. Appl. Pyrolysis, 1988, 14(1), 49‒71.
https://doi.org/10.1016/0165-2370(88)80007-X
9. Wang, W., Li, S. Y., Li, L. Y., Ma, Y., Yue, C. T., He, J. L. Pyrolysis kinetics of North-Korean oil shale. Oil Shale, 2014, 31(3), 250‒265.
https://doi.org/10.3176/oil.2014.3.05
10. Wang, Q., Liu, H. P., Sun, B. Z., Li, S. H. Study on pyrolysis characteristics of Huadian oil shale with isoconversional method. Oil Shale, 2009, 26(2), 148‒162.
https://doi.org/10.3176/oil.2009.2.07
11. Vyazovkin, S., Chrissafis, K., Di Lorenzo, M. L., Koga, N., Pijolat, M., Roduit, B., Sbirrazzuoli, N., Sunol, J. J. ICTAC Kinetics Committee recommendations for collecting experimental thermal analysis data for kinetic computations. Thermochim. Acta, 2014, 590, 1‒23.
https://doi.org/10.1016/j.tca.2014.05.036
12. Pan, N., Yue, Y., He, Z., Lv, W. Influence of transition metal salts and pyrolysis conditions on the product yield via Jimsar oil shale pyrolysis. Oil Shale, 2020, 37(4), 304‒318.
https://doi.org/10.3176/oil.2020.4.04
13. Pan, N., Li, D., Lü, W., Dai, F. Q. Kinetic study on the pyrolysis behavior of Jimsar oil shale. Oil Shale, 2019, 36(4), 462‒482.
