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Bed Agglomeration Behavior In A Bubbling Fluidized-Bed Combustor, Ehsan Ghiasi
Bed Agglomeration Behavior In A Bubbling Fluidized-Bed Combustor, Ehsan Ghiasi
Electronic Thesis and Dissertation Repository
Agglomeration is a major operational problem during the combustion of biomass containing a high amount of alkali compounds. The agglomerate formation is mainly due to the presence of alkali elements in biomass ashes that form low-melting compounds in the combustion.
In the first part of this project, the critical amount of liquid that would lead to a severe agglomeration/de-fluidization was studied and determined in a lab scale bubbling fluidized bed (BFB) heated at elevated temperatures. To simulate the biomass ashes, various percentages of KCl and KCl-K2SO4 compounds at eutectic composition were mixed with silica sand as the …