Steffen Merseburg’s research while affiliated with Fraunhofer Institute for Manufacturing Engineering and Automation and other places

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Publications (1)


Figure 1: Process diagram for carbon-negative hydrogen production using the Hydrogen Bioenergy with Carbon Capture and Storage (HyBECCS) approach
Figure 2: Emission reduction potential through HyBECCS in Germany based on carbon-negative hydrogen production from residual biomass using dark fermentation.
Figure 3: Impact factors on the profitability of carbon-negative hydrogen production using HyBECCS concepts
Figure 4: Pricing fundamentals for carbon-negative hydrogen considering the supply costs of competing
imported green hydrogen and expected incentives for CO2 capture and storage in Germany
Figure 5: Exemplary scheme for the expansion of the product range to create a biorefinery concept based on HyBECCS
A New Perspective for Climate Change Mitigation—Introducing Carbon-Negative Hydrogen Production from Biomass with Carbon Capture and Storage (HyBECCS)
  • Article
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April 2021

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459 Reads

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42 Citations

Sustainability

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Steffen Merseburg

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

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Citations (1)


... The following LCA indicators were calculated and shown in Table 4: Hydrogen can also be produced with net negative carbon emissions by applying the H 2 BECC concept that combines biohydrogen production with carbon dioxide capture and storage, representing a significant difference from carbon-neutral hydrogen production through electrolysis. This compensates GHG emissions in agriculture and waste management [62]. GWP-global warming potential. ...

Reference:

A Comprehensive Technical, Environmental, Economic, and Bibliometric Assessment of Hydrogen Production Through Biomass Gasification, Including Global and Brazilian Potentials
A New Perspective for Climate Change Mitigation—Introducing Carbon-Negative Hydrogen Production from Biomass with Carbon Capture and Storage (HyBECCS)

Sustainability