Study of loss-on-ignition anomalies found in ashes from combustion of iron-rich coal

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorVandenberghe, Robert Emile-
Autor(es): dc.creatorResende, Valdirene Gonzaga de-
Autor(es): dc.creatorCosta, Geraldo Magela da-
Autor(es): dc.creatorGrave, Eddy de-
Data de aceite: dc.date.accessioned2019-11-06T13:26:00Z-
Data de disponibilização: dc.date.available2019-11-06T13:26:00Z-
Data de envio: dc.date.issued2013-01-28-
Data de envio: dc.date.issued2013-01-28-
Data de envio: dc.date.issued2010-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/123456789/2080-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/555257-
Descrição: dc.descriptionSamples of a fly and a bottom ash, each before and after ignition at 960 _C, have been studied by X-ray diffraction, Mössbauer spectroscopy, carbon analysis, and thermogravimetric analysis with the aim to explain an observed negative loss on ignition. Ashes after ignition contain more maghemite resulting from oxidation of newly formed magnetite. Moreover, the fly ash that already contained magnetite exhibited an increase of hematite after ignition. Hercynite present in both ashes transforms to hematite and magnetite after the ignition. All these oxidation processes are responsible for a weight gain which may compensate the loss due to the burning of the remaining carbon in the ashes. Also, a-Fe is formed after ignition which may have originated from wustite.-
Idioma: dc.languageen-
Direitos: dc.rightsO Periódico Fuel concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3313110432955-
Palavras-chave: dc.subjectFly ash-
Palavras-chave: dc.subjectBottom ash-
Palavras-chave: dc.subjectLoss on ignition-
Palavras-chave: dc.subjectMössbauer spectroscopy-
Título: dc.titleStudy of loss-on-ignition anomalies found in ashes from combustion of iron-rich coal-
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