Torrefaction is an efficient pre-treatment method that can significantly increase the energy density, overall quality, and handling characteristics of biofuel. Roasted in relatively mild temperatures, usually in 200–300˚C, in absence of oxygen and in atmospheric pressure, the properties of feedstock improve and approach those of coal. Torrefied wood can be used in co-combustion with coal as well as for production of syngas and bio-oil. Still, there are a number of questions that are related to the use of torrefied wood in power plants, such as the storage properties. To quantify the outside storage properties of torrefied wood, this article presents preliminary results that focus on the resistance to decay.
Keywords: Wood waste recycling, MDF, Biological process
Authors
Kymäläinen M.
Department of Forest Sciences, University of Helsinki
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