A new method of flue gas desulfurization with the production of a valuable is proposed. The essence of the method is to pass flue gases through a scrubber (Venturi) filled with magnesium hydroxide suspension. At the same time, SO2 of the flue gases will react with magnesium hydroxide according with the formation of magnesium sulfite. Crystals of magnesium sulfite are able to interact with new portions of SO2 and turn into hydrosulfite. As a result of such "washing" of flue gases, a suspension of sparingly soluble salt MgSO3∙6H2O in a 12-15% solution of MgSO4 is obtained. Magnesium hexahydrate will precipitate as large crystals and be separated in a hydrocyclone. Separated crystals of magnesium sulfite will be oxidized under the influence of air oxygen to magnesium sulfate.
1. Analytical Report following the Communication from the Commission to the European Parliament, the European Council and the Council Commission Opinion on Ukraine’s application for membership of the European Union (2023). Retrieved from https://neighbourhood-enlargement.ec.europa.eu/system/files/2023-02/SWD_2023_30_Ukraine.pdf
2. EMBER. (2024). A safe climate thanks to clean electricity. Retrieved from https://ember-climate.org/insights/research/coal-power-air-pollution
3. Ecodia. (2023). Impact of the energy sector of Ukraine on air quality. Retrieved from https://en.ecoaction.org.ua/impacts-energy-on-air-quality.html
4. Kryzhanivskyi, Je. I., & Koshlak, H. V. (2016). Environmental problems of energy. Naftohazova enerhetyka, 1, 80-90.
5. On the approval of the Strategy for Environmental Security and Adaptation to Climate Change for the period up to 2030: Order Cabinet of Ministers of Ukraine 2021, № 1363-р (2021). Retrieved from https://zakon.rada.gov.ua/laws/show/1363- 2021-%D1%80#Text
6. On the approval of the Irrigation and Drainage Strategy in Ukraine for the period until 2030: Order Cabinet of Ministers of Ukraine 2019, № 688-р (2019). Retrieved from https://zakon.rada.gov.ua/ laws/show/688-2019-р
7. Resolution "First practical actions and problematic issues of the implementation of the Law of Ukraine "On Waste Management" of the National Forum "Waste Management in Ukraine: Legislation, Economy, Technologies" (2023), Ivano-Frankivsk. Retrieved from https://www.ecoleague.net/pres-tsentr-vel/novyny/2023-rik/lystopad/item/2648-natsionalnyi-forum-povodzhennia-z-vidkhodamy-v-ukraini-zakonodavstvo-ekonomika-tekhnolohii
8. The National Plan for Reducing Emissions from Large Combustion Plants, with Changes and Additions Made by: Order of the Cabinet of Ministers of Ukraine 2019, № 597-р (2019). Retrieved from https://www.rada.gov.ua/en/news/News/212702.html
9. United Nations Climate Change: Long-term strategies portal. (2022). Retrieved from https://unfccc.int/process/the-parisagreement/long-term-strategies
10. World Health Organization (2021). Climate change and health.. Retrieved from https://www.who.int/news-room/factsheets/detail/climate-change-and-health