At Niederaussem, two different membrane types will be tested together with the CESAR1 solvent, a second-generation, non-proprietary amine-based solvent. Profound know-how on the degradation behaviour and operational performance exists for this solvent after a unique 34,000 hours testing campaign without exchange of the solvent inventory at Niederaussem, which allows a holistic evaluation of the performance of the membrane technology for solvent management.
![RWE Image](/-/media/RWE/images/11-forschung-und-entwicklung/innovation-centre/co2-utilisation-and-integrated-energy/carbon-capture/medora/TIC01-medora-1-en.jpg?db=web&mw=1920&w=2160&hash=E282EABC184826A3BF4CDA1C34552AB4)
Concept of MeDORA (Membrane-assisted Dissolved Oxygen Removal from Amine solution for CO2 capture) - left: The membrane contactor contains membrane hollow fibers to remove the oxygen from the amine-based solvent; right: The dissolved oxygen is diffusing from the solvent side through the membrane to the sweep gas side.
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The MeDORA membrane contactor module will treat the complete solvent flow at the capture plant at Niederaussem and will be installed directly downstream of the CO2 absorber.