An SEM/EDX study of bed agglomerates formed during the fluidized bed combustion of three biomass fuels (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• An SEM/EDX study of bed agglomerates formed during the fluidized bed combustion of three biomass fuels (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.biombioe.2007.09.009 (literal)

Alternative label

• Scala F., Chirone R. (2008)
  An SEM/EDX study of bed agglomerates formed during the fluidized bed combustion of three biomass fuels
  in Biomass & bioenergy
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Scala F., Chirone R. (literal)

Pagina inizio

• 252 (literal)

Pagina fine

• 266 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 32 (literal)

Rivista

• Biomass & bioenergy (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• ISTITUTO DI RICERCHE SULLA COMBUSTIONE (literal)

Titolo

• An SEM/EDX study of bed agglomerates formed during the fluidized bed combustion of three biomass fuels (literal)

Abstract

• The agglomeration behaviour of three biomass fuels (exhausted and virgin olive husk and pine seed shells) during fluidized bed combustion in a lab-scale reactor was studied by means of SEM/EDX analysis of bed agglomerate samples. The effect of the fuel ash composition, bed temperature and sand particle size on agglomeration was investigated. The study was focused on the main fuel ash components and on their interaction with the bed sand particles. Agglomeration was favoured by high temperature, small sand size, a high fraction of K and Na and a low fraction of Ca and Mg in the fuel ash. An initial fuel ash composition close to the low-melting point eutectic composition appears to enhance agglomeration. The agglomerates examined by SEM showed a hollow structure, with an internal region enriched in K and Na where extensive melting is evident and an external one where sand particles are only attached by a limited number of fused necks. Non-molten or partially molten ash structures deposited on the sand surface and enriched in Ca and Mg were also observed. These results support an ash deposition-melting mechanism: the ash released by burning char particles inside the agglomerates is quantitatively deposited on the sand surface and then gradually embedded in the melt. The low-melting point compounds in the ash migrate towards the sand surface enriching the outermost layer, while the ash structure is progressively depleted of these compounds. (literal)

Prodotto di

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Studio dei processi e tecnologie di combustione a basso impatto ambientale (ET.P01.003.001) (Modulo)

Autore CNR

• FABRIZIO SCALA (Persona)
• RICCARDO CHIRONE (Unità di personale interno)

Incoming links:

Autore CNR di

• FABRIZIO SCALA (Persona)
• RICCARDO CHIRONE (Unità di personale interno)

Prodotto

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Studio dei processi e tecnologie di combustione a basso impatto ambientale (ET.P01.003.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Biomass & bioenergy (Rivista)