Characteristic of mercury on the surface of ash originating from electrostatic precipitators of lignite and bituminous coal-fired power plants

• Autorzy: Veselý Václav , Szeliga Zbyszek , Vávrová Zuzana , Čech Bohumír , Regucki Paweł , Krzyżyńska Renata

Identyfikatory

DOI

10.5277/epe190404

• Języki publikacji: EN

Abstrakty

EN

Mercury concentrations in ash taken from electrostatic precipitations (ESPs) installed in bituminous coal and lignite power plants have been analyzed by the X-ray fluorescence (XRF) method and leaching test supported by detailed coal and ash compositions’ analyses, surface scans and particles size distribution studies. The results showed that mercury was present on the surface of ash particles. Its concentration decreased upon increasing size of ash particles. Leaching tests showed that only small part of mercury was removed with water which suggests the fact that it occurred mostly in the form of insoluble compounds such as Hg, HgO, HgS and Hg₂Cl₂. There existed ash particles of the diameters from 50 to 60 μm, characterizing by the maximum capability to adsorb mercury and its compounds. The authors suggest that metals like copper and lead formed ash active centers that were preferably occupied by molecules containing atoms of mercury. It was highly possible to expect that content of these elements in ash would have a significant effect on sorption of mercury from combustion gases.

Słowa kluczowe

EN

electrostatic precipitators; brown coal; mercury; X-ray fluorescence; XRF

PL

elektrofiltry; węgiel brunatny; rtęć; fluorescencja rentgenowska; XRF

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2019
• Tom: Vol. 45, nr 4
• Strony: 45--59
• Opis fizyczny: Bibliogr. 20 poz., tab., rys.

Twórcy

autor

Veselý Václav

• Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, Prague, Czech Republic

autor

Szeliga Zbyszek

• VŠB Technical University Ostrava, CENET, Centre of Energy Utilization of Non-traditional Energy Sources Ostrava, Czech Republic

autor

Vávrová Zuzana

• VŠB Technical University Ostrava, CENET, Centre of Energy Utilization of Non-traditional Energy Sources Ostrava, Czech Republic

autor

Čech Bohumír

• VŠB Technical University Ostrava, CENET, Centre of Energy Utilization of Non-traditional Energy Sources Ostrava, Czech Republic

autor

Regucki Paweł

• Wrocław University of Science and Technology, Faculty of Mechanical and Power Engineering, Wrocław, Poland

autor

Krzyżyńska Renata

• Wrocław University of Science and Technology, Faculty of Environmental Engineering, Wrocław, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).