4P00001-15 Development of method for determination of moisture absorption characteristics of torrefiesd biomass
The goal of the project is to study the mechanisms of drying, humidification and moisture resistance for heat-treated (torrefied) wood. Another aim is to develop methods to determine the characteristics, and study how different types of treatment can affect the moisture absorption capacity of torrefied materials. | |
Within the project "Development of method for determining the moisture absorption characteristic of torrefied biomass", stem wood from spruce; raw material and torrefied material with three degrees of torrefaction, been analyzed for sorption properties. The materials equilibrium moisture contents at a specific temperature (60° C) and relative humidity from 0 to 95%, and the kinetics of a adsorptionsförlopp from 0 to 95% RH has been determined. The equilibrium moisture content of the hardest torrefied material was half as high as for the raw material. The time requried for torrefied material to go from 0% to 6.8% db, (equivalent to 90% of the equilibrium moisture content of 7.4% db) was 9 minutes. | |
SLU, Umeå Universitet, SCA, BioEndev, Bruks | |
Liselotte Uhlir | |
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2014-02 | |
ongoing | |
Smart Processes, Energy |