PECULIARITIES OF ABSORPTION OF SULFUR DIOXIDE AND NITROGEN OXIDE IN SUSPENSIONS AND SOLUTIONS OF MANGANESE COMPOUNDS

  • I.A. Volchyn Coal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv
  • S.V. Mezin Coal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv
  • A.O. Yasinetsky Coal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv
Keywords: flue gas, gas purification, sulfur dioxide, nitric oxide, manganese

Abstract

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.

Author Biographies

I.A. Volchyn, Coal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv

Doctor of Technical Sciences

A.O. Yasinetsky, Coal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv

Candidate of Technical Sciences

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Published
2020-12-20
How to Cite
Volchyn, I., Mezin, S., & Yasinetsky, A. (2020). PECULIARITIES OF ABSORPTION OF SULFUR DIOXIDE AND NITROGEN OXIDE IN SUSPENSIONS AND SOLUTIONS OF MANGANESE COMPOUNDS. Energy Technologies & Resource Saving, (4), 49-56. https://doi.org/10.33070/etars.4.2020.05
Section
Environment protection