The aim of this research is to simulate and analyse a power plant starting from a co-combustion of solid waste, biomass and methane equipped with CO2 Capture and Utilization units. The captured carbon dioxide will be then used in the same cycle for producing methane to be used in the plant and to be partially recirculated to the combustion chamber. The study will provide a complete energy, exergy, safety and economic analysis of the plant, varying, between the various operative conditions, the oxygen content of the combustion air, provided by the water electrolyser already used for the production of hydrogen for subsequent captured CO2 methanation using isothermal reactors, according to a power-to-gas approach. The CO2 capture technology will be gas/solid thermal swing adsorption and the thermodynamic and kinetic data of this process will derive from the mathematical modelling of the results provided by the experiments carried out by the research group. Different porous adsorbent materials will be developed, characterized and tested. The experimental tests will be initially performed on a gas mixture of nitrogen and carbon dioxide, whereas in a second phase of the research, a model flue gas will be prepared in laboratory.
