Forschungszentrum Jülich (FZJ)

Institut für Energie und Klimaforschung, IEK-2

The research field advanced power plants is carried out by the Institute of Energy and Climate Research (IEK-2). Major projects in this research field focus on the development and characterisation of high temperature Materials for advanced power plants with combined cycle technology and with steam technology with supercritical steam parameters, solid oxide fuel cells (SOFC) and plasma facing materials for future fusion devices. The work is carried out in close cooperation with industrial partners to bring the technology developed into the market.

For more than ten years, hot gas chemistry is a major topic at IEK-2. Within several national and European projects, the release of trace elements, hot gas chemistry, chemical hot gas cleaning, high temperature corrosion and slagging and fouling in coal and biomass based conversion systems has been investigated. The determination of thermo-chemical and thermo-physical data of complex systems or reduced model systems as well as data assessment and thermodynamic model calculations were mostly part of the investigations. By way of example, different slags from coal gasification are subject of investigation in the project HotVeGas (BMWi 0327773C). One result of this project is the slag database covering the oxides SiO2-Al2O3-CaO-MgO-Na2O-K2O.

The mass spectrometric equipment established at IEK-2 is unique in Europe. The two molecular beam mass spectrometer systems (MBMS) enable a complete on-line analysis of hot gases with emphasis on inorganics, including condensable and meta-stable gaseous species, at temperatures up to 1600 °C. In addition to the MS systems all analytical devices necessary for the project are available at IEK-2, e.g. KEMS, DTA, DSC, HT/HP-Microscopy, and HT/HP-Viscosimetry. FactSage will be used for thermodynamic calculations. Several commercial data basis (e.g. Fact, SGTE) are available.

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