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of the original manuscript:Czyperek, M.; Zapp, P.; Bouwmeester, H.J.M.; Modigell, M.; Ebert, K.; Voigt, I.; Meulenberg, W.A.; Singheiser, L.; Stoever, D.: AbstractThe objective of the "MEM-BRAIN" project is the development and integration of ceramic and polymeric gas separation membranes for zero-emission fossil power plants. This will be achieved by membranes with high permeability and selectivity for either CO 2 , O 2 or H 2 , for the three CO 2 capture process routes in power plants, enabling capturing of CO 2 with high-purity in a readily condensable form. For the pre-combustion process, ceramic microporous membranes operating at intermediate temperatures (≤ 400°C) are developed for H 2 /CO 2 separation. For the oxyfuel process, dense ceramic mixed oxygen ionic-electronic conducting membranes operating at 800-1000°C are developed for O 2 /N 2 separation. The perovskite-type oxide Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ (BSCF5582) is taken as the reference material for this application. For the post combustion process, polymeric and organic/inorganic hybrid membranes are developed for the CO 2 /N 2 separation at temperature up to 200°C. New hybrid organic/inorganic membranes with inorganic molecular sieves will be prepared, characterized and incorporated in polymer matrices. Additional to the development of membranes the integration of the membranes into power plants by modelling and optimization is considered. Finally, specific technical, economic and environmental properties of CO 2 capture as a component of a CCS process chain are assessed, analysing at the energy supply system as a whole.

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The cooperative project OXYCOAL-AC aims at the development of a zero-CO 2 -emission coal combustion process for power generation. The scope of the research comprises a multitude of aspects. This article focuses on membrane-based air separation modules and their design for oxycoal conditions, the specifics of coal combustion in a CO 2 /O 2 atmosphere including related burner design as well as the cleaning of hot flue gas from oxycoal combustion.