The aim of this work is to understand how to manage biomass, either as a stand-alone fuel or in interaction with fossil fuel, and to help define optimal granulometry and fuel mix. A higher proportion of fine-grained particles in sawdust can lead to complications in agglomeration mixture. This work describes the process of absorptivity of oak and pine pellets with water of 25 °C, water of 60 °C, soapy water and industrial surfactant. The decisive factors influencing the absorption were the surface tension of the liquids, the type and granulometry of the materials. It has been confirmed that the use of liquids with a lower surface tension or surfactant value has resulted in higher material absorption values. The absorption values obtained are a basic data base that can be further studied and further developed. Based on the data obtained, it is possible to consider the appropriate granulometry of alternative fuels and the hypotheses to verify the fuels together with the iron ores and slag additives by pregranulation.Keywords: Agglomerate, biomass, alternative fuels, technology, absorptivity
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