Investigation of the processing of fossil coals from the Kalewa and Tigyit deposits as raw materials for the production of activated by steam-gas activation

https://doi.org/10.58224/2619-0575-2024-7-3-93-101
Objectives: the article reveals the results of research on the technical indicators of the target products of the processes of steam-gas activation of fossil coals of the Tigyit and Kalewa deposits (Tigyit/Kalewa, Myanmar).
Methods. In order to assess the suitability of fossil coals from the Tigyit and Kalewa deposits for the production of granular activated carbons, the results of their petrographic analysis in the form of maceral composition and arbitrary vitrinite reflection indicators are characterized, indicating the potential possibility of their use to solve this problem, based on data from thermographic tests performed in a protective atmosphere, the rational limits of thermal effects on this raw material are estimated during pyrolysis.
Results. The results of steam-gas activation of the named fossil coals are presented, indicating the possibility of obtaining activated carbons with structurally acceptable adsorption properties for practical use, it is concluded that it is necessary to improve the processes of the named steam activation in order to optimize them.
Conclusions. Thus, the described results indicate the fundamental possibility of obtaining on the basis of fossil coals of the Kalewa and Tigyit deposits by the characterized reception of sufficiently high quality activated car-bons.
1. Shifeng Dai, Robert B. Finkelman Coal as a promising source of critical elements: progress and future prospects. Int. J. Coal Geol. 2018. No. 186. P. 155 – 164.
2. Shifeng Dai, Robert B Finkelman The importance of minerals in coal as the hosts of chemical elements. Int. J. Coal Geol. 1 August, 2019 Vol. 212. P. 103 – 251.
3. Kienle H., Bader E. Activated carbons and their industrial application. trans. from German. edited by T.G. Plachenov and S.D. Kolosentsev. L.: Chemistry, 1984. 215 p.
4. Mukhin V.M., Klushin V.N. Production and application of carbon adsorbents LAMBERT Academic Publishing. 2018. 308 p.
5. Redin V.I., Knyazev A.S., Kostyuk L.V. Design of nature protection facilities. SPb.: SPbGTI (TU), 2010. 72 p.
6. Biryukov V.V. Fundamentals of industrial biotechnology: textbook for students of higher education institutions. Moscow: KolosS, 2004. 296 p.
7. Vetoshkin A.G. Processes and apparatuses for environmental protection. Penza: Higher. school, 2008. 639 p.
8. Vetoshkin A.G. Processes and apparatuses for gas purification. Penza: PSU, 2006. 297 p.
9. GOST R 55662-2013. Methods of petrographic analysis of coals. Part 3. Method for determination of maceral composition. M.: Standartinform, 2014. 21 p.
10. GOST R 55659-2013. (ISO 7404-5:2009) Methods of petrographic analysis of coals. Part 5. Method for determination of vitrinite reflectance index using a microscope. M.: Standartinform, 2014. 29 p.
11. GOST R 55663-2013 (ISO 7404-2:2009). Part 2. M.: Standartinform, 2014. 19 p.
12. Activated carbons. Flexible sorbents, catalysts, desiccants and chemical absorbents based on them. Nomenclature catalog. edited by Doctor of Engineering Sciences V.M. Mukhin. M.: Publishing house "Ore and Metals", 2003. 280 p.
13. Stolbova N.F., Isaeva E.R. Petrology of coals: a tutorial. Tomsk: TPU Publishing House, 2013. 77 p.
14. Zo E Naing, Klushin V.N. The nature of the destruction of fossil coal from the Kaleiva deposit during heating. Advances in Chemistry and Chemical Technology. Moscow: D.I. Mendeleyev University of Chemical Technology of Russia. 2017. Vol. XXXI. No. 9. P. 37 – 38.
15. Zo E Naing, Klushin V.N. Features of thermal and thermo-oxidative decomposition of fossil coal from the Teichik deposit. Advances in Chemistry and Chemical Technology. Publishing House of the Federal State Budgetary Educational Institution of Higher Education D.I. Mendeleyev University of Chemical Technology of Russia. Moscow, 2017. T. 31. No. 9. P. 34 – 36.
Zaw Ye Naing, Saw Win Myint, Nistratov A.V., Klushin V.N. Investigation of the processing of fossil coals from the Kalewa and Tigyit deposits as raw materials for the production of activated by steam-gas activation. Chemical Bulletin. 2024. 7 (3). P. 93 – 101. https://doi.org/10.58224/2619-0575-2024-7-3-93-101