INVESTIGATION OF STRUCTURAL-PHASE CONVERSION OF THE IRON-CONTAINING CATALYST BY MÖSSBAUER SPECTROSCOPY (Part 2)
Abstract
The active form of iron-containing catalysts – a mixture of iron(II, III) oxides – was studied by Mössbauer spectroscopy in order to identify the mechanism of formation of catalysts used in the upgrading of heavy oil. During the formation process, the iron oxide phase participates in breaking carbon-heteroatom bonds in high-molecular components (resins and asphaltenes) of heavy oil and reduces their molecular mass. Thus, the dispersed iron oxides are enriched with a sulfur-containing phase. Based on the results of mathematical processing of the Мössbauer spectra obtained during the experiment, the quantitative composition of the products of thermocatalytic action at 300°C was studied. Magnetite (Fe3O4), greigite (Fe3S4), pyrite (FeS2) and pyrrhotite (Fe1–xS) were mainly detected in the isolated catalysts. The content of magnetite decreases towards the formation of iron sulfides (pyrite and pyrrhotite). Hydrogen sulfide and hydrocarbons are formed because of cracking, hydrolysis and hydrogenolysis reactions at 300°С.
About the Authors
I. I. Mukhamatdinov
Institute of Geology and Petroleum Technologies, Kazan (Volga Region) Federal University
Russian Federation
Kazan, 420111
Russian Federation
Kazan, 420111
A. V. Pyataev
Institute Physics of Kazan (Volga Region) Federal University
Russian Federation
Kazan
Russian Federation
Kazan
R. D. Zaripova
Alexander Butlerov Institute of Chemistry of Kazan (Volga Region) Federal University
Russian Federation
Kazan
Russian Federation
Kazan
A. R. Khaidarova
Institute of Geology and Petroleum Technologies, Kazan (Volga Region) Federal University
Russian Federation
Kazan, 420111
Russian Federation
Kazan, 420111
A. V. Vakhin
Institute of Geology and Petroleum Technologies, Kazan (Volga Region) Federal University
Russian Federation
Kazan, 420111
Russian Federation
Kazan, 420111
References
1. W. Qin, Z. Xiao. Adv. Mater. Res., 608 (2013) 1428—1432
2. Y. Chen, Y. Wang, C. Wu, F. Xia. Energy Fuels, 22 (2008) 1502—1508
3. K. Chao, Y. Chen, H. Liu, X. Zhang, J. Li. Energy Fuels, 26 (2012) 1152—1159
4. Н. Н. Рокосова, Ю. В. Рокосов, С. И. Усков, Н. В. Бодоев. Нефтехимия, 41, № 4 (2001) 243—257
5. Г. П. Каюкова, Л. З. Нигмедзянова, А. Г. Романов, С. Н. Лазарев, М. В. Дахнова, Е. В. Храмова, Е. С. Назарова. Нефтехимия, 45, № 5 (2005) 252—261
6. A. V. Vakhin, F. A.Aliev, I. I. Mukhamatdinov, S. A. Sitnov, A. V. Sharifullin, S. I. Kudryashov, I. S. Afanasiev, O. V. Petrashov, D. K. Nurgaliev. Processes, 8, N 5 (2020), doi: 10.3390/pr8050532
7. I. I. Mukhamatdinov, A. R. Khaidarova, R. D. Zaripova, R. E. Mukhamatdinova, S. A. Sitnov, A. V. Vakhin. Catalysts, 10, N 1 (2020), doi: 10.3390/catal10010114
8. I. I. Mukhamatdinov, I. Sh. S. Salih, I. Z. Rakhmatullin, S. A. Sitnov, A. V. Laikov, V. V. Klochkov, A. V. Vakhin. J. Petroleum Sci. Eng., 181 (2020), doi: 10.1016/j.petrol.2019.106721
9. M. I. Oshtrakh, M. V. Ushakov, V. Šepelák, V. A. Semionkin, P. C. Morais. Spectrochim. Acta A: Mol. Biomol. Spectrosc., 152 (2016) 666—679
10. D. Shu, T. Chen, X. Zou, M. Li, C. Wang, H. Wang, H. Liu. Sci. Total Environ., 731, N 12 (2020) 138951
11. N. Belzile, Y.-W. Chen, M.-F. Cai, Y. Li. J. Geochem. Explor., 84, N 2 (2004) 65—76
12. M. Benz, A. van der Kraan, R. Prins. Appl. Catalys. A: General, 172, N 1 (1998) 149—157
13. А. Р. Хайдарова, А. В. Пятаев, И. И. Мухаматдинов, Р. Д. Зарипова, А. В. Вахин. Журн. прикл. спектр., 87, № 4 (2020) 622—626 [A. R. Khaidarova, A. V. Pyataev, I. I. Mukhamatdinov, R. D. Zaripova, A. V. Vakhin. J. Appl. Spectr., 87 (2020) 680—684]
14. I. I. Mukhamatdinov, A. V. Vakhin, S. A. Sitnov, A. R. Khaidarova, R. D. Zaripova, E. I. Garifullina, V. E. Katnov, S. N. Stepin. Chem. Technol. Fuels Oils, 54, N 5 (2018) 574—580
15. А. Р. Хайдарова, T. В. Гогалюк, И. И. Мухаматдинов, А. В. Вахин, О. В. Славкина, К. А. Щеколдин, В. И. Дарищев. Нефть. Газ. Новации, 225, № 4 (2020) 60—64
16. В. С. Русаков. Основы мёссбауэровской спектроскопии, Москва, МГУ (2011)
17. А. Г. Иванова, А. В. Вахин, Е. В. Воронина, А. В. Пятаев, Д. К. Нургалиев, С. А. Ситнов. Изв. РАН. Сер. физ., 81, № 7 (2017) 904—908
18. J. A. Morice, V. C. Rees, D. T. Rickard. J. Inorg. Nucl. Chem., 31, N 12 (1969) 3797—3802
Review
For citations:
Mukhamatdinov I.I., Pyataev A.V., Zaripova R.D., Khaidarova A.R., Vakhin A.V. INVESTIGATION OF STRUCTURAL-PHASE CONVERSION OF THE IRON-CONTAINING CATALYST BY MÖSSBAUER SPECTROSCOPY (Part 2). Zhurnal Prikladnoii Spektroskopii. 2021;88(1):104-108. (In Russ.)
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