Planetary Boundaries Assessment of Flue Gas Valorization into Ammonia and Methane ...

• Main Authors: D'Angelo, Sebastiano Carlo, Mache, Julian, Guillén Gosálbez, Gonzalo
• Format: Text
• Language: English
• Published: ETH Zurich 2022
• Subjects: flue gas valorization; planetary boundaries; life cycle assessment; circular economy; Ocean acidification
• Online Access: https://dx.doi.org/10.3929/ethz-b-000563066; http://hdl.handle.net/20.500.11850/563066

Carbon capture and utilization (CCU) has attracted growing interest to potentially curb CO2 emissions while generating valuable chemicals. These emerging technologies will coexist with their fossil analogs soon, creating opportunities to combine both. In this context, flue gas valorization from power plants can play a role in this transition. The success of CCU technologies will ultimately depend on its environmental sustainability, which should be evaluated based on global indicators such as the Planetary Boundaries (PBs). Here we assessed the absolute sustainability level of an integrated facility producing ammonia (NH3) and synthetic natural gas (SNG) using hydrogen (H2) from water electrolysis, and nitrogen (N2) and CO2 from flue gas from a combined-cycle natural gas power plant. The LCA-PBs assessment showed that the alternative technologies could contribute to operating the Planet safely by significantly reducing the impact on the climate change and ocean acidification Earth-system processes, compared ... : Computer Aided Chemical Engineering, 51 ...