G Tao, P Geladi, TA Lestander, S Xiong - Renewable and Sustainable …, 2012 - Elsevier
A study was carried out based on ash composition data (relative proportion of SiO2, K2O,
CaO, MgO, Na2O, P2O5, Al2O3, Fe2O3 and SO2 in ash) in a large number of biomass …