Evaluation of the suitability of defined SRF in mixture with wood and as a standalone fuel for the pilot-scale gasification processes

• SRF gasification was performed in a pilot-scale unit • High LHV achieved in both investigated fuel scenarios (6.53-6.74 MJ/m3) • Predictive model had shown satisfying relation with the experimental data • LCA revealed that over 188 km transportation, fuel pelletization brings environmental benefits This study evaluates the suitability of defined solid recovered fuel (SRF) both as a standalone feedstock and as a wood-blended fuel. The experiments were conducted using an air-blown autothermal gasification reactor equipped with a circular grate, with atmospheric air serving as the oxidizing agent. The results indicate that both fuel configurations are suitable for gasification, resulting in a stable process and production of methane-rich producer gas production with high CH 4 content of 14-15 % vol. . The LCA analysis determines the pelletization process and evaluates its benefit within a transportation framework, which reduces environmental impacts for transport distances exceeding approximately 200 km due to improved energy density. This research study highlights an experimentally evaluated alternative to waste-to-energy processes, where material valorization is of the essence for converting high-calorific waste fractions into gaseous energy carriers and solid carbon-rich residues. Equilibrium-based modeling was additionally applied to provide a theoretical reference for syngas composition during air-blown gasification and was compared with experimental results. Moreover, waste management of non-recyclable, high-calorific waste fractions can be partially solved through this approach, as was found in this study. These findings support the role of SRF gasification as a complementary waste valorization route for non-recyclable, high-LHV waste streams.