The influence of temperature on limestone sulfation and attrition under fluidized bed combustion conditions (Articolo in rivista)

Type
Label
  • The influence of temperature on limestone sulfation and attrition under fluidized bed combustion conditions (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.expthermflusci.2009.10.013 (literal)
Alternative label
  • Montagnaro F., Salatino P., Scala F (2010)
    The influence of temperature on limestone sulfation and attrition under fluidized bed combustion conditions
    in Experimental thermal and fluid science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Montagnaro F., Salatino P., Scala F (literal)
Pagina inizio
  • 352 (literal)
Pagina fine
  • 358 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 34 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Chimica - Università degli Studi di Napoli Federico II Istituto di Ricerche sulla Combustione - CNR Dipartimento di Ingegneria Chimica - Università degli Studi di Napoli Federico II (literal)
Titolo
  • The influence of temperature on limestone sulfation and attrition under fluidized bed combustion conditions (literal)
Abstract
  • The influence of temperature on attrition of two limestones during desulfurization in a fluidized bed reactor was investigated. Differences in the microstructure of the two limestones were reflected by a different thickness of the sulfate shell formed upon sulfation and by a different value of the ultimate calcium conversion degree. Particle attrition and fragmentation were fairly small under moderately bubbling fluidization conditions for both limestones. An increase of temperature from 850 ?C to 900 ?C led to an increase of the attrition rate, most likely because of a particle weakening effect caused by a faster CO2 evolution during calcination. This weakening effect, however, was not sufficiently strong to enhance particle fragmentation in the bed. The progress of sulfation, associated to the build-up of a hard sulfate shell around the particles, led in any case to a decrease of the extent of attrition. Sulfation at 900 ?C was less effective than at 850 ?C, and this was shown to be related to the porosimetric features of the different samples. (literal)
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