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Effect of kaolin and limestone addition on slag formation during combustion of woody biomass pellets
2005 (English)In: Biomass for energy, industry and climate protection: 14th European Biomass Conference & Exhibition ; proceedings of the international conference held in Paris, France, 17 - 21 October 2005, Florence: ETA - Renewable Energies , 2005, 1319-1322 p.Conference paper, Published paper (Refereed)
Abstract [en]

Limited availability of sawdust and cutter shavings and an increasing demand for wood pellets in Sweden are pushing the market towards new, more problematic, raw materials with higher ash content. Examples of such raw materials are bark, logging residues and whole tree assortments. The objectives of the present work were to determine the effects of kaolin and limestone addition on the slagging tendencies of some problematic woody biomass pellets during combustion in a typical residential pellet burner and also to contribute to the understanding of the role of kaolin and limestone in preventing slagging. This was accomplished by studying the bottom ash and the slag composition after 19 suspension with additive-to-fuel ratio of 1 wt %d.s. to the severely contaminated bark and cleaning assortment ignificantly reduced the slagging tendencies. Significantly higher Ca- and Al-concentrations in the slag were observed for limestone and kaolin addition, respectively. These changes resulted in a more favorable melting behavior (i.e. a igher solid phase to melt ratio).

Place, publisher, year, edition, pages
Florence: ETA - Renewable Energies , 2005. 1319-1322 p.
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-40718Local ID: ff2fb3f0-b890-11dc-b7e3-000ea68e967bISBN: 88-89407-07-7 (print)OAI: oai:DiVA.org:ltu-40718DiVA: diva2:1014239
Conference
European Biomass Conference & Exhibition : 17/10/2005 - 21/10/2005
Note
Upprättat; 2005; Bibliografisk uppgift: CD-ROM; 20080101 (ohmmar)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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Öhman, Marcus

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CiteExportLink to record
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