title: Characterization of Scots pine stump-root biomass as feed-stock for gasification.
abstract: The main objective was to explore the potential for gasifying Scots pine stump-root biomass (SRB). Washed thin roots, coarse roots, stump heartwood and stump sapwood were characterized (solid wood, milling and powder characteristics) before and during industrial processing. Non-slagging gasification of the SRB fuels and a reference stem wood was successful, and the gasification parameters (synthesis gas and bottom ash characteristics) were similar. However, the heartwood fuel had high levels of extractives (≈19%) compared to the other fuels (2-8%) and thereby ≈16% higher energy contents but caused disturbances during milling, storage, feeding and gasification. SRB fuels could be sorted automatically according to their extractives and moisture contents using near-infrared spectroscopy, and their amounts and quality in forests can be predicted using routinely collected stand data, biomass functions and drill core analyses. Thus, SRB gasification has great potential and the proposed characterizations exploit it.
authors: Swedish University of Agricultural Sciences, Vindeln Experimental Forest, Svartberget Research Station, SE-922 91 Vindeln, Sweden. Daniel.Eriksson@slu.se
authors: Daniel
authors: D
authors: Eriksson
authors: Fredrik
authors: F
authors: Weiland
authors: Henry
authors: H
authors: Hedman
authors: Martin
authors: M
authors: Stenberg
authors: Olov
authors: O
authors: Öhrman
authors: Torbjörn A
authors: TA
authors: Lestander
authors: Urban
authors: U
authors: Bergsten
authors: Marcus
authors: M
authors: Öhman
mesh_terms: D003198:Computer Simulation; D005740:Gases / Q000138:chemical synthesis*; D006361:Heating / Q000379:methods*; D008956:Models, Chemical; D041605:Pinus sylvestris / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*
chemical_list: D005740:Gases