Title:
Ash Free Pyrolysis Liquidl from Softwood Forestry Residue
Author(s):
Toven, K., Celaya, J., Lenes, M., Bridgwater, A.V.
Document(s):
Paper
Abstract:
In Scandinavia, the wood processing industry leaves large amounts of forest residue that could be used for producing a renewable liquid fuel through fast pyrolysis. A bottleneck for pyrolysis liquids produced from ash¬containing feedstock is that the presence of solids (char, ash) in pyrolysis liquids makes the pyrolysis liquid unsuitable for direct combustion in conventional boilers and turbine operations due to problems with fouling, corrosion, erosion and plugging. The aim of this study is to explore whether "char/ash free" pyrolysis liquids can be produced from forestry residues by separating solids from freshly produced pyrolysis liquid by high speed centrifugation. Pyrolysis liquids were produced from various forest residue feedstocks in a 1 kg/h continuous fluid bed rig and the liquids were subjected to high speed centrifugation to separate solids. Effects of forestry residue feedstock composition and high speed centrifugation on product yields, solids separation efficiency and liquid phase separation have been explored.
Keywords:
fast pyrolysis, forest residues, pyrolysis oil, char, ashes
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Pyrolysis and other biomass liquefaction technologies
Event:
20th European Biomass Conference and Exhibition
Session:
2CV.2.10
Pages:
1246 - 1248
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2CV.2.10
Price:
FREE
