Torrefaction and Compaction of Eucalyptus and Spruce Wood

I. Olofsson, E. Sandström, M. Nordwaeger, M. Rudolfsson, S. Larsson, T. Lestander, G. Kalén, R. Samuelsson, L. Pommer, M. Brännström & A. Nordin
Eucalyptus is a fast growing tree with typical rotations of 7­8 years, and is therefore suitable as biomass raw material for the energy industry. Spruce is presently widely used in the Nordic countries and was therefore chosen as our reference material. Torrefied biomass generally shows superior fuel qualities with respect to logistics, handling, storage and feeding. Therefore, the two wood chip materials Spruce (Norwegian Spruce) and Eucalyptus were torrefied at temperatures ranging from 270 to...