http://www.cnr.it/ontology/cnr/individuo/prodotto/ID89917
The influence of reactivation of spent SO2 sorbents on fragmentation upon resulphation in fluidized bed combustors (Contributo in atti di convegno)
- Type
- Label
- The influence of reactivation of spent SO2 sorbents on fragmentation upon resulphation in fluidized bed combustors (Contributo in atti di convegno) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
Montagnaro F., Santoro L., Scala F., Salatino P. (2008)
The influence of reactivation of spent SO2 sorbents on fragmentation upon resulphation in fluidized bed combustors
in Congresso GRICU 2008 "Ingegneria Chimica: Le Nuove Frontiere", Le Castella (KR)
(literal)
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- Montagnaro F., Santoro L., Scala F., Salatino P. (literal)
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- Dipartimento di Chimica, Università degli Studi di Napoli Federico II
Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche
Dipartimento di Ingegneria Chimica, Università degli Studi di Napoli Federico II (literal)
- Titolo
- The influence of reactivation of spent SO2 sorbents on fragmentation upon resulphation in fluidized bed combustors (literal)
- Abstract
- The relationship between calcination/sulphation and attrition/fragmentation of limestone-based SO2 sorbents in FB combustors has long been recognized, but only recently did attrition by impact receive consideration. Moreover, there is scarce information available on the propensity to undergo impact fragmentation upon resulphation by exhausted sorbents submitted to hydration/reactivation. The present study represents an original attempt to characterize this propensity. The limestone was pre-processed (sulphation at 850°C in a lab-scale FB, water-hydration for 3 h in a thermostatic bath, dehydration at 850°C in the FB) and subjected to impact test in a purposely designed apparatus, operated with different particle impact velocities. The particle size distribution of the debris was worked out to define a fragmentation index and a probability density function of the size of generated fragments. The effect of hydration/reactivation of spent sorbent on its impact fragmentation propensity was assessed, and results were discussed in the light of a mechanistic framework. (literal)
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