Gasification of pure and mixed feedstock components: Effect on syngas composition and gasification efficiency

The aim of this work was to investigate whether the use individual tree components (i.e., stem wood, bark, branches, and needles spruces) as feedstocks during oxygen blow gasification is more efficient than using mixtures these components. Experiments were performed at three levels in an 18-kW blown fixed bed gasifier with both single mixed component feedstocks. composition resulting syngas cold gas efficiency based on CO H2 (CGEfuel) used response variables evaluate influence different performance. Based experimental results data ?26000 trees drawn from a national Swedish spruce database, multivariate models developed simulate performance under operating conditions feedstock compositions. revealed that optimal CGEfuel respect supply differed markedly between Additionally, showed co-gasification yielded lower separate pure Optimizing for average reduced GCEfuel by 1.3–6.2% when compared Therefore, if single-component are available, it may be preferable gasify them separately because doing so provides higher