Thermoeconomic Analysis of Biomethane Production Plants: A Dynamic Approach

This work analyses the two most diffused technologies for biogas upgrading, namely water scrubbing and membrane separation. In order to carry out such analysis, these are coupled with photovoltaic panels an electric energy storage system. The optimal renewable plant achieves a primary saving of 5.22 GWh/year operating cost 488 k€/year, resulting in best plant. It was compared reference system based on cogenerator unit, directly supplied by biogas, producing thermal energy, delivered district heating network grid. profitability both plants depends biomethane exporting price. proposed bigas upgrading payback period lower than 10 years selling price greater 0.55 €/Sm3 index around 25–30% null share exported cogeneration