Resource-efficient fuel additives for reducing ash related operational problems in waste wood combustion

Today, waste wood combustion in co-combustion with forest wood chips has become common practice in many EU Member States. While recycling and energy markets for clean wood have been growing in Europe in recent years, waste wood has been a largely overlooked resource. Depending on the source, waste wood contains elements that increase the risk to get ash-related problems in the boiler during combustion. One of the measures to reduce the alkali chloride-related problems in biomass combustion is to use additives. Fuel additives can increase the reliability of biofuel plants and develop skills to extend the use of different types of biofuels, which ultimately may mean that the energy supply of conventional fuels with high environmental impact can be reduced. Thus, the objective is to improve economic and environmental conditions and enlarge the market for the use of wood waste fuels in heating and CHP-plants by using resource efficient additives such as recycled gypsum.