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AuthorAl-Degs, Y.S.
AuthorGhrir, A.
AuthorKhoury, H.
AuthorWalker, G.M.
AuthorSunjuk, M.
AuthorAl-Ghouti, Mohammad A.
Available date2016-02-28T12:50:47Z
Publication Date2014-07
Publication NameFuel Processing Technology
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.fuproc.2014.01.040
CitationAl-Degs, Y.S., Ghrir, A., Khoury, H., Walker, G.M., Sunjuk, M., Al-Ghouti, M.A., "Characterization and utilization of fly ash of heavy fuel oil generated in power stations", (2014) Fuel Processing Technology, 123, pp. 41-46.
ISSN0378-3820
URIhttp://hdl.handle.net/10576/4191
AbstractUnlike coal fly ash, fly ash of heavy fuel oil has received much less attention in the literature. In this work, detailed physicochemical characterization of heavy fuel oil fly ash (FA) is provided. The ash has a carbonaceous matrix and contains V, Ni, Zn, Cr, Cu, and Pb with variable amounts. V was the most abundant heavy metal with enrichment factor of 277 in the FA. The presence of V in the FA is attributed to the formation of Mg 3V2O8 oxides at high combustion temperature as confirmed by XRD. Particle size distribution showed that the mean particle diameter of the FA was 70.5 ?m. Extraction recovery up to 85% of metals was achieved using 1.0 M HNO3 and at room temperature. Standard metal-leaching tests confirmed that the elution of the toxic metals and the level of eluted Zn were much higher than the regulated value for the solid residues. Five stable geopolymers GPs containing 41.7 wt.% FA were prepared. All GPs showed high compressive strength and low water absorption which support their application as lightweight construction composites. Most importantly, adding FA to GP had significantly reduced metal migration into the environment as confirmed by the synthetic precipitation leaching procedure.
SponsorHigher Council for Science and Technology, Jordan
Languageen
PublisherElsevier B.V.
SubjectFly ash
Geopolymerization
Heavy fuel oil
Metals extraction
Surface characterization
TitleCharacterization and utilization of fly ash of heavy fuel oil generated in power stations
TypeArticle
Pagination41-46
Volume Number123
dc.accessType Abstract Only


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