Mercury emission from three lignite-fired power plants in the Czech Republic
| Autor: | Karel Borovec, Zbyszek Szeliga, Jerzy Górecki, Lukas Pilar |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Flue gas
Power station Waste management business.industry 020209 energy General Chemical Engineering fungi Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Flue-gas desulfurization Mercury (element) Fuel Technology 020401 chemical engineering chemistry Fly ash 0202 electrical engineering electronic engineering information engineering Environmental science Coal 0204 chemical engineering business |
| Zdroj: | Fuel Processing Technology. 212:106628 |
| ISSN: | 0378-3820 |
| DOI: | 10.1016/j.fuproc.2020.106628 |
| Popis: | The main aim of the research was to estimate mercury emissions from three selected power plants in the Czech Republic, where lignite is burnt, as well as to conduct a comprehensive measurement of Hg in fuels, fly ash and desulfurization products. The average concentrations of the mercury in fuel were as follows: for Power Plant 1 it was 0.19 ± 0.01 mg/kg, in the case of power plants 2 and 3 it was 0.24 ± 0.03 mg/kg and 0.23 ± 0.02 mg/kg, respectively. The average concentrations of mercury in the flue gas, at the stack, were the following: for Power Plant 1–19.5 ± 2.9 μg/m3N, for Power Plant 1–19.9 ± 3.0 μg/m3N and for power plant 3–23.5 ± 3.5 μg/m3N. In all three cases, the mercury emission level exceeds the planned permissible emission level, 7 μg/m3N. The percentage of the mercury removed by means of the flue gas purification systems installed in the power plants varied from approximately 30 to 53%. The efficiency of mercury removal with the fly ash in the electrostatic precipitators ranged from 2 to 52%. The efficiency of mercury removal in the SO2 removal systems ranged from about 1 to 30%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect