The Åbo Akademi database - fuel characterization

Std. fuel analyses provide insufficient information for proper prediction of ash deposition.  Therefore, chem. fractionation, i.e. a stepwise leaching procedure, has been developed in the past.  It has been used extensively for detn. of the distribution of ash forming matter both in coal, peat, waste and biomass fuels.  With this method fuels are leached in three steps, i.e. leached with water, ammonium acetate and hydrochloric acid resp.  This paper presents the fuel database developed at åbo Akademi University.  The database contains over 100 fuels, i.e. coal, peat, bark, wood derived fuels, agricultural crops and waste fuels.  Std. fuel analyses, stepwise leaching results, thermodn. melting calcns. and SEM pictures are available for the majority of these fuels.  For 11 fuels also trace metals were analyzed.