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Prediction of ash fusion temperatures of high calcium lignites originated from the Ptolemais-Amyntaio basin, North Greece

Stratakis Antonios, Galetakis Michail

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URIhttp://purl.tuc.gr/dl/dias/F3EC8C5E-1E1B-42CB-B3AA-25025E878475-
Identifierhttps://doi.org/10.1080/19392699.2019.1708336-
Identifierhttps://www.tandfonline.com/doi/full/10.1080/19392699.2019.1708336-
Languageen-
Extent14 pagesen
TitlePrediction of ash fusion temperatures of high calcium lignites originated from the Ptolemais-Amyntaio basin, North Greeceen
CreatorStratakis Antoniosen
CreatorΣτρατακης Αντωνιοςel
CreatorGaletakis Michailen
CreatorΓαλετακης Μιχαηλel
PublisherTaylor & Francisen
Content SummaryThis study aims to investigate the lignite ash behavior during combustion for electricity generation and to predict the Ash Fusion Temperatures (AFTs) using ash chemical composition. The studied lignite samples were collected from the area of Ptolemais-Amyntaio at Western Macedonia district of Northwest Greece. Ash chemical composition and its AFTs were determined for all collected samples. Results indicated that the chemical composition of the ash varies significantly and is rich in CaO. AFTs, as well as, slagging and fouling indices derived from the chemical analysis results, showed the tendency for slagging and fouling fluctuates also significantly. The varying chemical composition and AFTs, requires frequent sampling and laboratory analysis. Since AFTs determination is a time-consuming laboratorial procedure, multiple linear regression models, capable to predict AFTs from ash chemical composition, were developed. The adjusted regression coefficients of the prediction models were around to 0.90, while the relative root mean square error was approximately 4%.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2024-06-11-
Date of Publication2022-
SubjectLigniteen
SubjectAsh Fusion Temperaturesen
SubjectHigh calcium ligniteen
SubjectAsh chemical compositionen
SubjectSlaggingen
SubjectFoulingen
Bibliographic CitationA. Stratakis and M. Galetakis, “Prediction of ash fusion temperatures of high calcium lignites originated from the Ptolemais-Amyntaio basin, North Greece,” Int. J. Coal Prep. Util., vol. 42, no. 5, pp. 1304–1317, May 2022, doi: 10.1080/19392699.2019.1708336.en

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