Flue Gas Desulfurization by Mechanically and Thermally Activated Sodium Bicarbonate

• Authors: Barbara Walawska , Arkadiusz Szymanek , Anna Pajdak , Marzena Nowak
• Languages of publication: EN

Abstracts

EN

This paper presents the results of study on structural parameters (particle size, surface area, pore volume) and the sorption ability of mechanically and thermally activated sodium bicarbonate. The sorption ability of the modified sorbent was evaluated by: partial and overall SO2 removal efficiency, conversion rate, normalized stoichiometric ratio (NSR). Sodium bicarbonate was mechanically activated by various grinding techniques, using three types of mills: fluid bed opposed jet mill, fine impact mill and electromagnetic mill, differing in grinding technology. Grounded sorbent was thermally activated, what caused a significant development of surface area. During the studies of SO2 sorption, a model gas with a temperature of 300°C, of composition: sulfur dioxide at a concentration of 6292 mg/mn3, oxygen, carbon dioxide and nitrogen as a carrier gas, was used. The best development of surface area and the highest SO2 removal efficiency was obtained for the sorbent treated by electromagnetic grinding, with simultaneous high conversion rate.

Keywords

EN

flue gas desulfurization; sodium bicarbonate; surface area; conversion rate

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2014
• Volume: 16
• Issue: 3
• Pages: 56-62

Dates

published

1 - 9 - 2014

online

3 - 10 - 2014

Contributors

author

Barbara Walawska

• Instytut Nawozów Sztucznych, Oddział Chemii Nieorganicznej „IChN” w Gliwicach, ul. Sowińskiego 11, 44-101 Gliwice, Poland

author

Arkadiusz Szymanek

• Instytut Zaawansowanych Technologii Energetycznych, Wydział Inżynierii Środowiska i Biotechnologii, Politechnika Częstochowska, ul. J.H. Dąbrowskiego 73, 42-200 Częstochowa, Poland

author

Anna Pajdak

• Instytut Zaawansowanych Technologii Energetycznych, Wydział Inżynierii Środowiska i Biotechnologii, Politechnika Częstochowska, ul. J.H. Dąbrowskiego 73, 42-200 Częstochowa, Poland

author

Marzena Nowak

• Instytut Nawozów Sztucznych, Oddział Chemii Nieorganicznej „IChN” w Gliwicach, ul. Sowińskiego 11, 44-101 Gliwice, Poland

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Identifiers

DOI

10.2478/pjct-2014-0051