Combustion related characterisation of Miscanthus peat blends applying novel fuel characterisation tools

摘要: Abstract A continuously increasing demand for energy from biomass encourages utilisation of new fuels which usually cause ash related problems in conventional wood combustion systems. One approach to make these applicable such systems is prepare blends with other as peat, positively influence the behaviour ash-forming elements. Usually application fuel has been evaluated experimentally, but this study novel and advanced characterisation tools (developed fixed bed/grate systems) are applied Miscanthus/peat blends. In a first step pure were chemically analysed. Fuel indexes provide primary information on ash-melting estimation K release, indications aerosol emissions, risk high-temperature chlorine corrosion NO x emission potential. Thermodynamic equilibrium calculations used qualitative semi-quantitative prediction release volatile semi-volatile elements (K, Na, S, Cl, Zn, Pb) behaviour. To quantitatively determine elements, lab-scale reactor experiments conducted comparison theoretical was performed. This work shows that applying characterise works well meaningful can be recommended. The advantage method varying peat compositions (since composition strongly depends its origin) considered. Additionally helps significantly reduce time-consuming expensive testing programs.