PECULIARITIES OF ABSORPTION OF SULFUR DIOXIDE AND NITROGEN OXIDE IN SUSPENSIONS AND SOLUTIONS OF MANGANESE COMPOUNDS
It is proposed to use manganese compounds to reduce emissions of sulfur and nitrogen oxides, large deposits of which are in Ukraine. The results of experimental studies of the binding of sulfur dioxide and potassium permanganate of nitric oxide in water by manganese oxide are presented. In the experiments, the model gas in the form of small bubbles was passed through the reactor with liquid. Heat and mass transfer processes between the gas and liquid phases occurred on the bubble surface. The gas-liquid contact time is the bubble rise time. The absorption reactions take place in the liquid phase. Complete absorption of sulfur dioxide takes place in an acidic environment, provided that the molar ratio MnO2 / SO2 is not less than 2. The reaction product is manganese sulfate, which is a useful product. The maximum absorption of nitrogen oxide is achieved at a molar ratio of KMnO4 / NO not less than 5. The reaction forms a precipitate of manganese oxide, which can later be used in the desulfurization process. Bibl. 12, fig. 6, tab. 3.
Council Decision of 29 May 2006 on the conclusion by the European Community of the Energy Community Treaty. Official Journal of the European Union. L 198. Vol. 49. 20.07.2006. P. 18–37. URL: https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=OJ:L:2006:198:FULL&from=EN (дата звернення: 04.08.2020)
Directive 2010/75/EU of the European Parliament and of the Council of 24 November 2010 on industrial emissions (integrated pollution prevention and control). Official Journal of the European Union. L 334. Vol. 53. 17.12.2010. P. 17–119. URL: https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=OJ:L:2010:334: FULL&from=EN (дата звернення: 04.08.2020)
Directive (EU) 2015/2193 of the European Parliament and of the Council of 25 November 2015 on the limitation of emissions of certain pollutants into the air from medium combustion plants. Official Journal of the European Union. L 313. Vol. 58. 28.11.2015. P. 1–19. URL: https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=OJ: L:2015:313:FULL&from=EN (дата звернення: 04.08.2020)
Thierry Lecomte, José Félix Ferrería de la Fuente, Frederik Neuwahl, Michele Canova, Antoine Pinasseau, Ivan Jankov, Thomas Brinkmann, Serge Roudier, Luis Delgado Sancho. Best Available Techniques (BAT) Reference Document for Large Combustion Plants; EUR 28836 EN, 2017; DOI:10.2760/949.
Atroshchenko V.I., Aliekseiev A.M., Zasorin A.P. Kurs tekhnologii sviazannogo azota. [Course of technology of associated nitrogen]. Moscow : Khimiia, 1968. 384 p. (Rus.)
Volchyn I.A., Karatsuba A.S., Rudenko L.N. Primenimost dioksida margantsa dlia ochistki dymovykh gazov. [Applicability of manganese dioxide for flue gas cleaning]. Energotekhnologii i resursus-berezhenie. [Energy technologies and resource conser-vation]. 2012. No. 3. pp. 49–55. (Rus.)
Sun D, Xin GZ, Yao L, Yang L, Jiang X, Jiang WJ. Manganese leaching in high concentration flue gas desulfurization process with semi-oxidized manganese ore. Chinese Journal of Chemical Engineering. 2020. 28 (2). pp. 571–576. DOI: 10.1016/j.cjche.2019.09.006.
Shigeo Uchida, Tsuguo Kobayashi, Shizuo Kageyama. Absorption of nitrogen monoxide into aqueous KMnO4/NaOH and Na2SO3/FeSO4 solutions. Industrial & Engineering Chemistry Process Design and Development. 1983. 22 (2). pp. 323–329. DOI: 10.1021/i200021a024;
Gamini Senanayake. A mixed surface reaction kinetic model for the reductive leaching of manganese dioxide with acidic sulfur dioxide. Hydrometallurgy. 2004. Vol. 73. pp. 215–224. DOI: 10.1016/j.hydromet.2003.10.010.
Chu H., Chien T.W., Li S.Y. Simultaneous absorption of SO2 and NO from flue gas with KMnO4/NaOH solutions. The Science of the Total Environment. 2001. Vol. 275. pp. 127–135. DOI: 10.1016/S0048-9697(00)00860-3.
Volchyn I.A., Mezin S.V., Rudenko L.N., Yasynetskyi A.A. Issledovanie pogloshchenia dioksida siery v rastvorie karbamida [Investigation of sulfur dioxide absorption in urea solution]. Energetik. [Pow-er Worker]. 2015. No. 6. pp. 24–26. (Rus.)
Hu J., Liu J., Lei M., Zheng Y., Cen C., Gan F. A study on the removal of NOx in simulated flue gas using urea/potassium permanganate solution as absorbent. Applied Mechanics and Materials. 2011. Vol. 71–78. pp. 2797–9805. DOI: 10.4028/www.scientific.net/AMM.71-78.2797.