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@PHDTHESIS{Ma:865867,
      author       = {Ma, Mingshui},
      title        = {{T}hermochemische {E}igenschaften von kombinierten
                      {K}atalysator- und {S}auerstoffträgersystemen für die
                      partielle {O}xidation von {T}eeren aus der
                      {B}iomassevergasung},
      volume       = {473},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {FZJ-2019-05153},
      isbn         = {978-3-95806-426-3},
      series       = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {VII, 157},
      year         = {2019},
      note         = {Dissertation, RWTH Aachen University, 2012},
      abstract     = {A big, not yet completely solved problem in biomass
                      gasification processes is the high proportion of
                      higher-boiling hydrocarbons (tars) in the fuel gas, which
                      always leads to high equipment and operating costs.
                      Therefore, a high effort has to be made to remove them from
                      the fuel gas. In this thesis, catalytic partial oxidation is
                      applied as a thermo-chemical method to remove tar and
                      convert it into fuel gas by using a combined system of
                      catalyst and oxygen carrier. By this method, the amount of
                      oxygen needed for the partial oxidation of tar will be
                      supplied by an oxygen carrier, which will also serve as a
                      carrier of the catalyst. Several oxygen carrier materials
                      were manufactured and tested for their redox properties by
                      conducting TG measurements. In addition, different catalyst
                      materials were synthesized and analysed by a molecular beam
                      mass spectrometer for their catalytic activities. The
                      influence of trace substances (such as HCl, KCl and
                      H$_{2}$S) on the performance of the material systems was
                      also tested on laboratory-scale. Based on the results of
                      laboratory tests, CSFM5555 and ilmenite exhibited very
                      promising properties as oxygen carriers. They can supply a
                      sufficient amount of oxygen for the oxidation of tar and
                      show good redox properties for the regeneration. As a
                      potential catalyst material, NiO showed high catalytic
                      activity. During testing, the combination of these two
                      material groups showed high ability for the removal of
                      naphthalene, which was used as a model component for tar. In
                      order to prevent thecatalyst (NiO) from being poisoned by
                      H$_{2}$S, H$_{2}$S sorbents (CuO) were used. The utilisation
                      of H$_{2}$S sorbents in combination with the
                      catalyst-oxygen-carrier system enhanced significantly the
                      performance of the catalyst. In conclusion, suitable oxygen
                      carrier materials, catalysts and sour gas sorbents will be
                      identified in this work, which in combination enable the
                      proposed tar removal process},
      cin          = {IEK-2},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:0001-2019111316},
      url          = {https://juser.fz-juelich.de/record/865867},
}