Title:
A Method to Examine Time-Resolved Mass Loss Behaviour of Large Single Biomass Particles Under Torrefaction Conditions
Author(s):
Becker, A., Brosch, B., Wirtz, S., Scherer, V.
Document(s):
Paper
Abstract:
Torrefaction is a thermal pretreatment of solid biomass to create a biomass based fuel with improved properties compared to untreated biomass. In the context of the project „Torrefaction of solid biomass" a test rig to investigate the time¬resolved mass loss behaviour of "large" single biomass particles up to 30 mm was designed at the Department of Energy Plant Technology (LEAT) at the Ruhr¬University Bochum. Time¬resolved mass loss of biomass particles in the millimetre scale is measured with a magnetic suspension balance at realistic torrefaction conditions in terms of heating rate. Investigations on deciduous – and coniferous wood, beech and pine, as well as on residual agriculture materials such as palm kernel shells (PKS) are considered at gas temperatures between 240 and 300 °C in inert atmosphere. Influence of gas temperature, type of biomass, particle size on time¬ resolved mass loss behaviour is presented in this paper. Results reveal differences between and within biomass species. As expected higher temperature leads to higher mass losses. Compared to woody biomass mass loss of palm kernel shells is significantly higher.
Keywords:
torrefaction, wood, solid fuels
Topic:
R&D on Processes for Solid, Liquid and Gaseous Fuels from Biomass
Subtopic:
Advanced solid biofuels
Event:
20th European Biomass Conference and Exhibition
Session:
3DV.4.13
Pages:
1748 - 1754
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-3DV.4.13
Price:
FREE
