A New Perspective for Climate Change Mitigation—Introducing Carbon-Negative Hydrogen Production from Biomass with Carbon Capture and Storage (HyBECCS)

The greatest lever for advancing climate adaptation and mitigation is the defossilization of energy systems. A key opportunity to replace fossil fuels across sectors use renewable hydrogen. In this context, main political social push currently on neutral hydrogen (H2) production through electrolysis using electricity. Another possibility that has recently gained importance biohydrogen from biogenic residual waste materials. This paper introduces first time a novel concept with net negative emissions. derived combines biotechnological or thermochemical processes carbon dioxide (CO2) capture storage. Various process combinations referred basic approach are defined as HyBECCS (Hydrogen Bioenergy Carbon Capture Storage) described in paper. technical principles resulting advantages systematically compared other Negative Emission Technologies (NET). These include high concentration purity CO2 be captured Direct Air (DAC) Post-combustion (PCC) well emission-free higher possible rate hydrocarbon-based biofuels generated Storage (BECCS) technologies. Further, role carbon-negative future systems analyzed, taking into account societal technological drivers against background mitigation. For purpose, example Federal Republic Germany, ecological impacts estimated, an economic assessment made. hydrogen, saving potential 8.49–17.06 MtCO2,eq/a estimated year 2030 Germany. costs would have below 4.30 € per kg worst-case scenario 10.44 best-case order competitive market forecasts.