Teknisk och ekonomisk analys av en bränslekonvertering vid SIA TallOils pelletsfabrik :

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At SIA TallOil's pellets factory in Latvia wood shavings and saw dust are dried with flue gases from a gas burner. TallOil wants to replace the gas with a biofuel that is available at the pellet plant. The reason for this is the unstable gas market in Europe in combination with the fact that TallOil wants to improve its profile as supplier of renewable bio fuels. In this project the technical and economical possibilities for a fuel conversion to ether bark powder, wood shavings or wood powder have been investigated. These fuels should be burned in one of the following applications: TPS BioSwirl, VTS Multifuel burner or Saxlunds bio fuel combustion plant Due to the fact that the fuel alternatives available are relatively common except for bark powder, the work has mainly been focused on bark powder. Bark powder is most easily burned in a VTS Multifuel burner. This application should, if used, be vertical assembled to ease the collection of the ash. When burning wood powder for generation of flue gases is it suitable to take the wood powder falling from the pellets production line and burn it in a BioSwirl. The wood powder production will then take place continuously during the pellets production and only a small buffer storage would be needed. In a technical and economical point of view a conversion to burning bark shavings in a combustion plant is the most suitable alternative. If a conversion of this type shou...