This type of fly ash exhibits different properties in comparison with the ashes coming from conventional methods of combustion. It is an effect of lower temperature of combustion(on average about 850 C). Fluidized fly ash ischaracterized by porous grains and, in contrast to conventional fly ash, it usually does not include glass or spherical grains. In composition of fluidized fly ash one may find: mainly dehydrated aluminosilicates, quartz,calcium compounds in the form of CaO, Ca(OH)2 and
CaCO3 as well as anhydrite or gypsum from flue-gas desulphurization,and also non-combusted coal [10].
This type of fly ash exhibits different properties in comparison with the ashes coming from conventional methods of combustion. It is an effect of lower temperature of combustion(on average about 850 C). Fluidized fly ash ischaracterized by porous grains and, in contrast to conventional fly ash, it usually does not include glass or spherical grains. In composition of fluidized fly ash one may find: mainly dehydrated aluminosilicates, quartz,calcium compounds in the form of CaO, Ca(OH)2 and
CaCO3 as well as anhydrite or gypsum from flue-gas desulphurization,and also non-combusted coal [10].
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