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Zeolitization of Coal Fly Ashes and Coal Fly Ash Microspheres
 
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Institute of Energy and Fuel Processing Technology ul. Zamkowa 1 41-803 Zabrze
2
Synthos S.A. ul. Chemików 1 32-600 Oświęcim
CORRESPONDING AUTHOR
Katarzyna Rychlewska   

Institute of Energy and Fuel Processing Technology ul. Zamkowa 1 41-803 Zabrze
 
J. Ecol. Eng. 2022; 23(11):109–121
 
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ABSTRACT
The research investigated the efficiency of zeolitization of silicon and alumina bearing combustion by-products, i.e. coal fly ash and coal microspheres. Lab-scale alkali activation with 3M sodium hydroxide solution of raw materials obtained from Polish coal-fired power plant were conducted in 100°C. Obtained result proved, that both combustion by-products are prone to zeolitization under the tested conditions with obtained zeolite yields of 60 and 55% in case of fly ash and microspheres, respectively. The main identified zeolite in case of both by-products was NaP1.