The primary objective of the research project HotVeGas is to lay the necessary foundations for the long-term development of future, highly efficient high-temperature gasification processes. This includes integrated hot gas cleaning and optional CO2 capture and storage for next generation IGCC power plants and processes for the development of synthetic fuels. The joint research project is funded by the German Federal Ministry of Economics and Technology and five industry partners. It is coordinated by the Technische Universität München (TUM) with participation of further project partners namely Forschungszentrum Jülich, TU Freiberg and GTT Technologies. The project covers experimental investigations, model development, as well as overall process calculations. In a first project phase from September 2007 until August 2011 the experimental basis was set for the investigation of coal properties, its mineral matter and trace elements under reducing atmospheres. A pressurized and an atmospheric entrained flow reactor, pressurized and atmospheric TGAs and a wire-mesh reactor were designed and built for the investigation of numerous coal properties at highest temperatures up to 1800°C and pressures up to 5 MPa. Different online measuring techniques like ELIF and FTIR are available at the institute and allow in-situ measurements of the main gas components as well as the determination of trace gas elements like Na and K. In the second phase of the research project (September 2011 until August 2015), further investigations regarding kinetic studies of coal conversion and the analysis of the trace material are carried out for an extended quantity of fuels and gasification agents. So far, stable operating conditions up to 1600°C and 4 MPa have been achieved. The experiments are accompanied by a comprehensive model development to simulate flow, heat and mass transfer, reactions and slag properties. This allows the design and optimization of future gasifier and gas-cleaning concepts. The models are fed and validated with the experimentally determined parameters. Additionally, overall process calculations are conducted to evaluate the potential of future IGCC power plant concepts and lead the way for future research. In that context the integration of a membrane-shift reactor was identified to show best performance for an IGCC with CCS and further developments towards that direction were initiated. Here, the status of selected project work at TUM will be reported and results presented.
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The primary objective of the research project HotVeGas is to lay the necessary foundations for the long-term development of future, highly efficient high-temperature gasification processes. This includes integrated hot gas cleaning and optional CO2 capture and storage for next generation IGCC power plants and processes for the development of synthetic fuels. The joint research project is funded by the German Federal Ministry of Economics and Technology and five industry partners. It is coordinat...
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