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Industrial processes for biomass drying and their effects on the quality properties of wood pellets
Karlstad University, Faculty of Technology and Science, Department of Energy, Environmental and Building Technology.ORCID iD: 0000-0003-2528-4399
Karlstad University, Faculty of Technology and Science, Department of Energy, Environmental and Building Technology.ORCID iD: 0000-0002-0380-3533
Karlstad University, Faculty of Technology and Science, Department of Energy, Environmental and Building Technology.ORCID iD: 0000-0002-9707-8896
Karlstad University, Faculty of Technology and Science, Department of Energy, Environmental and Building Technology.ORCID iD: 0000-0002-5764-7062
2004 (English)In: Biomass and Bioenergy 27:621-628, 2004, Vol. Vol.27, p. 621-628Article in journal (Refereed)
Abstract [en]

This paper contributes to the discussion of how different kinds of industrial scale dryers for biomass influence the quality properties of wood pellets. It also discusses how the drying technique can affect the environment. The most common biomass drying processes in use, i.e., convection dryers are discussed. The discussion of drying techniques is based on advantages and disadvantages with a focus on the drying medium,temperature and residence time. The choice of drying technique is particularly important if the end-users choice of pellets is made due to the specific requirements for the heating system used. Some specific parameters were tested in order to investigate how the choice of drying technique affects the pellet quality. The parameters tested were moisture content and the emissions of volatile hydrocarbons. Pellets available on the market were chosen for the tests. The amount of volatile hydrocarbons left in sawdust after drying vary with drying technique, as emissions of terpenes are larger in dryers with long residence times. Low emissions of volatile hydrocarbons would improve the energy content of the sawdust, and by decreasing air pollution improve the work environment and the environment in the surroundings of the dryers

Place, publisher, year, edition, pages
Elsevier , 2004. Vol. Vol.27, p. 621-628
National Category
Energy Systems
Research subject
Environmental and Energy Systems
Identifiers
URN: urn:nbn:se:kau:diva-20296OAI: oai:DiVA.org:kau-20296DiVA, id: diva2:593954
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2017-12-06

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Ståhl, MagnusGranström, KarinBerghel, JonasRenström, Roger

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • de-DE
  • en-GB
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  • fi-FI
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Output format
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