KEROGREEN, P2X-2, and two other projects (PRODIGY and CO2SimO) together form a group of projects which, viewed in pairs, have very similar technologies as objects of R&D and compete with each other in all combinations – at least in theory. The technologies have practically identical technology, energy, and environmental policy backgrounds and are assessed using identical methods due to identical questions. For further information, please visit P2X-2.

The common Power-to-X concept is a process for chemical storage of electricity through electrolysis of water or water/CO₂ mixtures (products: H₂, synthesis gas, also C₂₊ compounds). This is followed by synthesis reactions such as the Fischer-Tropsch reaction or methanation. In KEROGREEN, the synthesis gas is converted to FT kerosene. However, the synthesis gas is produced in an unconventional way. The CO₂ is not split by electrolysis but by plasmolysis. A major technical research focus is on the development or identification of optimal materials for the plasma electrodes and the membranes for the separation of the mixture of CO₂, CO, and O₂ produced during plasmolysis. The hydrogen is obtained by a water-gas shift reaction with part of the CO; the CO₂ is returned to the plasmolysis.

The aim of the ITAS work package is to provide the project partners with the system analytical information necessary for the efficiency-optimized and sustainable implementation of the KEROGREEN concept. The technical focus of the work at ITAS is on modular plants for decentralized production of FT kerosene. The content focus is on assessing the environmental characteristics and cost using life-cycle based methods (LCA, LCC). The analyses are conducted R&D-integrated and are performed in close cooperation with the technical partners.

Research questions are

• the positioning of the technologies to be developed in comparison to a fossil reference technology and innovative competitive concepts in order to define benchmarks for KEROGREEN, and
• the identification of weak points to optimize the concept and achieve the objectives.

The societal dimension is assessed based on the acceptance of the KEROGREEN concept and its competitors. The data and method basis is provided by the cost and environmental assessment of the KEROGREEN concept and the acceptance analyses conducted by IZES in P2X-2.

The LCA and LCC results are aggregated to indicators such as, e.g., greenhouse gas abatement costs. All three dimensions are discussed in summary form.

Tel.: +49 721 608-24606
E-mail