Filtration Combustion of Humid Fuels

A comparative study of the filtration combustion of two types of fuel in mixtures with an inert material at various degrees of humidity was performed. The fuels were activated birch charcoal and pinewood. It was demonstrated that the combustion of activated charcoal was only slightly affected by humidity. In the case of pinewood combustion, an increase in the fuel humidity caused substantial decreases in the gasification mass rate and temperature. The composition of the gaseous products was found to change only for mixtures containing a large amount of pinewood with a humidity of more than 35%. This can be accounted for by a change in the extent of pinewood pyrolysis.