With the inevitable decline in availability of fossil fuel sources, there has been a worldwide increase of interest in renewable energy, aiming at sustainability in all aspects: technical, economical, social and environmental. The renewable energy has advantages over fossil fuels, such as generating employment opportunities in remote areas, contributing to poverty alleviation, diversifying the energy matrix, and diminishing impacts on the emission of pollutants into the atmosphere. The generation of waste in the forest-based industry is a natural consequence of the transformation of wood, so new techniques for the use of biomass for energy have been developed in order to meet the growing energy demand. The use of wood wastes as an energy source contributes positively to the environment by reducing environmental problems related to contamination of soil, air and water through improper disposal of waste. Thus, the process of biomass gasification becomes an interesting alternative, since among the techniques of energy conversion has been enacted, this process has many advantages due to the conversion of biomass into a combustible gas that can be used for heat generation, electricity and synthesis of chemicals. The syngas produced from gasification of eucalyptus residues showed large potential with an average High Heating Value of 6.60 MJ/m³, and regular composition during the process, with predominance of carbon monoxide (19,02% v/v), followed by hydrogen (11,58% v/v), carbon dioxide (10,18% v/v) and methane (8,20% v/v). There was no interference of climatic conditions in the results.