| dc.description.abstract | This study presents the cenospheres formation based on the characteristic of the fly ash and the coal as well as
the potential production of cenospheres from fly ash from six coal-fired power plants in Indonesia. For cenospheres characterization, SEM-EDS, petrography analysis, and particle analyzer distribution were applied
through all samples. Coal and fly ash chemical composition were analyzed using proximate analysis and ICP-MS.
Based on the characterization of cenospheres and fly ash chemical components, we correlate the concentration of
SiO2, Al2O3, SiO2/Al2O3, Fe2O3, Fe2O3+TiO2, CaO, MgO in the fly ash with cenospheres yield and diameter. The
cenospheres yield in six Indonesian coal-fired power plant fly ash is in the range of 0.04–0.16% and inline with
the ash content in the initial coal. Moreover, it was found that the cenospheres yield and diameter are in positive
correlation with the concentration of SiO2 and Al2O3 in the fly ash, but they are in vice versa correlation with
other chemicals. Ternary diagram of the cenospheres was made to their potential application and found that
most of the cenospheres are in the ferrocalsialic. | en_US |
