This process, operated close to 600℃ requires no external energy consumption due to partial oxidation sequence within. When applied to high humidity products a previous drying stage is required. In this case the energy consumption increases and the overall energy balance shifts to steam gasification one. It is well-known that steam gasification provides a superior syngas in terms of low heating value and hydrogen content. A solution could be the injection of water from the drying stage into the gasification one. Therefore we chose the pyro-steam-gasification as analyzed process.