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Bed agglomeration characteristics of wood-derived fuels in FBC
Åbo Akademi.
Åbo Akademi.
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2006 (English)In: Energy & Fuels, ISSN 0887-0624, E-ISSN 1520-5029, Vol. 20, no 2, p. 818-824Article in journal (Refereed) Published
Abstract [en]

The agglomeration tendency of five Scandinavian forest-derived biomass fuels was studied using an advanced fuel analysis, i.e., a combination of chemical fractionation analysis, controlled bed defluidization tests, and SEM/EDX analysis of bed samples. It is shown that all five fuels have a tendency to form bed agglomerates when fired in a fluidized bed with silica sand as the bed material. The agglomeration appeared to proceed by formation of a sticky layer on bed particles gluing them together. The layers on the bed particles contained Si, Ca, and K, and, in some cases, P. The combination of advanced fuel analysis by SEM/EDX showed that the soluble fraction of Ca and K (i.e., leachable from the fuel with water and acetate) may be responsible for the formation of the layer. Silicon may mainly come from the bed particles.

Place, publisher, year, edition, pages
2006. Vol. 20, no 2, p. 818-824
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-11148DOI: 10.1021/ef050349dLocal ID: a0df3760-4b37-11dc-ac5f-000ea68e967bOAI: oai:DiVA.org:ltu-11148DiVA, id: diva2:984097
Note
Upprättat; 2006; 20070815 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Öhman, Marcus

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