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@BOOK{Mller:136138,
      author       = {Müller, Michael},
      title        = {{F}reisetzung und {E}inbindung von
                      {A}lkalimetallverbindungen in kohlebefeuerten
                      {K}ombikraftwerken},
      volume       = {34},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GbmH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-136138},
      isbn         = {978-3-89336-568-0},
      series       = {Schriften des Forschungszentrums Jülich . Reihe Energie
                      $\&$ Umwelt / Energy $\&$ Environment},
      pages        = {155 S.},
      year         = {2009},
      note         = {Record converted from JUWEL: 18.07.2013},
      abstract     = {Coal fired combined cycle power systems will be a
                      sufficient way to increase the efficiency of coal
                      combustion. However, combined cycle power systems require a
                      reliable hot gas cleanup. Especially alkali metals, such as
                      sodium and potassium, can lead to hot corrosion of the gas
                      turbine blading if they condensate as sulphates. The actual
                      work deals with the release and sorption of alkali metals in
                      coal fired combined cycle power systems. The influence of
                      coal composition, temperature and pressure on the release of
                      alkali species in coal combustion was investigated and the
                      relevant release mechanisms identified. Alumosilicate
                      sorbents have been found that reduce the alkali
                      concentration in the hot flue gas of the Circulating
                      Pressurized Fluidized Bed Combustion 2nd Generation (CPFBC
                      2$^{nd}$ Gen.) at 750 °C to values sufficient for use in a
                      gas turbine. Accordingly, alumosilicate sorbents working at
                      1400 °C have been found for the Pressurized Pulverized Coal
                      Combustion (PPCC). The sorption mechanisms have been
                      identified. Thermodynamic calculations were performed to
                      upscale the results of the laboratory experiments to
                      conditions prevailing in power systems. According to these
                      calculations, there is no risk of hot corrosion in both
                      processes. Furthermore, thermodynamic calculations were
                      performed to investigate the behaviour of alkali metals in
                      an IGCC with integrated hot gas cleanup and H2 membrane for
                      CO$^{2}$ sequestration.},
      cin          = {IEF-2},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)VDB810},
      typ          = {PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/136138},
}