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Title:

Effects of Torrefaction on Pelletability and Pellet Properties of Norwegian Biomass Fuels

Author(s):

Misljenovic, N., Bach, Q-V., Tran, K-Q., Salas-Bringas, C., Skreiberg, .

Document(s):

Paper Paper

Abstract:

This paper examines the influence of torrefaction on pelletability and pellet properties of two types of wood, Norwegian spruce (softwood) and birch (hardwood), which were torrefied at two different temperatures (225 and 275C) for 30 minutes. Energy and mass losses, higher heating value, moisture uptake and particle size distribution of raw and torrefied woods were determined in order to characterize the materials before pelleting and to see how the torrefaction affects wood properties. The impact of wood type, temperature and compacting pressure on pellet strength and materials (raw and torrefied wood) compressibility was investigated using a single pellet press method. Pellets were produced at three different temperatures (60, 120 and 180C) and eight different compacting pressures (5, 10, 20, 40, 80, 160, 240, 300 MPa).

Keywords:

torrefaction, wood pellets, pelletization

Topic:

R&D on Processes for Solid, Liquid and Gaseous Fuels from Biomass

Subtopic:

Advanced solid biofuels

Event:

21st European Biomass Conference and Exhibition

Session:

3EO.2.4

Pages:

1419 - 1424

ISBN:

978-88-89407-53-0

Paper DOI:

10.5071/21stEUBCE2013-3EO.2.4

Price:

FREE