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標題: Inhibition and promotion: The effect of earth alkali metals and operating temperature on particle agglomeration/defluidization during incineration in fluidized bed
作者: Lin, C.L.
Kuo, J.H.
Wey, M.Y.
Chang, S.H.
Wang, A.S.
關鍵字: Agglomeration;Defluidization;Incineration;Fluidized bed;agglomeration;ash;defluidization;combustion;waste;destabilization;gasification;behavior;biomass;model
Project: Powder Technology
期刊/報告no:: Powder Technology, Volume 189, Issue 1, Page(s) 57-63.
Some studies have demonstrated that earth alkali metals promote agglomeration: however, others have shown that they inhibit the generation of agglomeration. The earth alkali metals (Mg and Ca) may cause both inhibition and promotion of agglomeration/defluidization. Therefore, this study focuses on the effect of Mg, Ca and the operating temperature on the agglomeration/defluidization of sodium during incineration in a fluidized bed reactor. The results indicate that the added Mg and Ca inhibit agglomeration and increase the defluidization time. At low Na/Mg and Na/Ca mole ratios, Mg and Ca inhibit defluidization significantly. However, the inhibition reduces as the concentration of Na increases. When the mole ratio (Na/Mg and Na/Ca) exceeds two, the inhibition of Mg and Ca is not apparent. Under these conditions, the operation temperature is the main factor with regard to agglomeration/defluidization. When Mg and Ca are added to reduce the agglomeration/defluidization. both the concentration of Na and operating temperature must be considered. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
ISSN: 0032-5910
DOI: 10.1016/j.powtec.2008.06.003
Appears in Collections:環境工程學系所

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