Increasing bio-oil yield and quality in fast pyrolysis of ash-rich forest residues through novel in-situ ash management
Background/Motivation
- Fast pyrolysis of lignocellulosic biomass constitutes a promising technology toreduce the Swedish dependence on fossil fuels for transportation.
- Commercial pyrolysis installations based on ash-lean sawdust (e.g., the Pyrocell plant) have reached a TRL of 8-9.
- Fast pyrolysisash-richresidual biomassstreams, suchasbarkandforest residues, is currently at a significantly lower TRL.
- High ash content in the biomass feedstock leads to lower fast pyrolysis bio-oil production yield and quality.
Research objectives
To develop efficient countermeasures, i.e., ash related management concepts, to increase the bio-oil yield and quality in fast pyrolysis of ash-rich forest residues
Funding: Swedish Energy Agency, BTG, BTG-BTL (6 MSEK)
Partners: Luleå University of Technology, KTH, BTG, BTG-BTL
Duration: 2020-2024
Contact persons: Marcus Öhman and Klas Engvall.
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