Elucidation of associations of ash-forming matter in woody biomass residues using on-line chemical fractionation

► On-line chemical fractionation of ash-forming metals in varied biofuels and ashes. ► Screening results of ash-forming matter delivered to industry in <3 h. ► Assistance in taking decisions on firing/non-firing of biofuels on a short notice. ► Advanced characterization of biomass residues with fractionation, SEM-EDX and XRD. ► Investigation of the selectivity of extractants in sequential extraction procedures.