Limestone dissolution plays a relevant role in determining the quality of the gypsum that can be obtained as a byproduct of the wet limestone flue gas desulfurization process. In this work, the dissolution of limestone in an aqueous solution of SO2 is experimentally studied. The dissolution rate in a fixed-bed reactor is measured at different sulfur strengths of the solution and liquid-solid relative velocities. The results are interpreted using a model based on the film theory. It is shown that the thickness of the liquid film, and therefore the Sherwood number, is a function of the Reynolds number, and a correlation is proposed for this dependence. Using the correlation and the theoretical model proposed, some results are obtained for the shrinking of a spherical limestone particle as a function of time.

"Characteristic times for limestone particle dissolution in the production of gypsum from the wet flue gas desulfurization process"

MUSMARRA, Dino;
1994

Abstract

Limestone dissolution plays a relevant role in determining the quality of the gypsum that can be obtained as a byproduct of the wet limestone flue gas desulfurization process. In this work, the dissolution of limestone in an aqueous solution of SO2 is experimentally studied. The dissolution rate in a fixed-bed reactor is measured at different sulfur strengths of the solution and liquid-solid relative velocities. The results are interpreted using a model based on the film theory. It is shown that the thickness of the liquid film, and therefore the Sherwood number, is a function of the Reynolds number, and a correlation is proposed for this dependence. Using the correlation and the theoretical model proposed, some results are obtained for the shrinking of a spherical limestone particle as a function of time.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11591/230686
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 6
social impact