Biomass Boiler - an overview | ScienceDirect Topi
S. Caillat, E. Vakkilainen, in Biomass Combustion Science, Technology and Engineering, 2013. Liquid content. When biomass boiler dust is heated, it at first behaves like a solid. At the first melting temperature, liquid appears. Above that temperature, a state where the deposit is partially molten and partially solid exists.