Biomass co-firing and refuse derived fuel fired boiler considerations

摘要

Biomass in the form of wood residues or many other forms is co-fired with refuse derived fuel (RDF) and burned with coal as a way of reducing the carbon footprint and utilising biomass materials to provide extra heat for steam or electricity generation. The variable properties of biofuels, fuel handling, feeding, fouling, slagging and superheater corrosion are challenges not present in simple coal fired systems and must be overcome. Variable moisture content makes a fundamental difference to the biomass heating value. Circulating fluidised bed (CFB) furnaces have proved very well suited for heat and power production for a wide range of co-fired biofuels and municipal refuse or coal.