Zpravodaj Hnědé uhlí 2023, 63(2)

The Distribution of Hg in the flue gas in the wet desulphurization method of the flue gas generated from the combustion of solid fossil fuels

Ing. Lukáš Pilař, Ph.D., Ing. Karel Borovec, Ph.D., Ing. Zbyszek Szeliga, Ph.D., Ing. Stanislav Kapr

The application of EU legislation on BAT for LCP leads to the need for a new perspective on a comprehensive solution to the issue of technologies used for greening, flue gas cleaning and related research and development activities, especially in countries with a large share of solid fossil fuel use in industrial sources. Examples of these countries in the EU are, for example, the Czech Republic and Poland. These new regulations, valid from August 2021, set lower emission limits for SO2, NOx, dust (TZL), CO, in comparison with the national ones and set new emission limits for flue gas components such as HF, HCl and, last but not least, Hg. On one hand, the presented paper introduces basic knowledge about the concentrations of Hg in fuels mined in the Czech Republic, with the concentration of HgT in the flue gas produced after burning brown coal mined in the Czech Republic, and especially with the results of the experimental tests carried out dealing with the capture of Hg by dosing a reagent based on sodium sulphide.

Keywords: Hg (mercury), flue gases, reagent, desulfurization, air pollution

Published: June 1, 2023  Show citation