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@INPROCEEDINGS{Schfer:909831,
      author       = {Schäfer, Dominik and Schorn, Felix and Samsun, Remzi Can
                      and Fang, Qingping and Kunz, Felix},
      title        = {{T}he biogas-oxyfuel process as a carbon source for
                      high-temperature co-electrolysis and degradation by oxidized
                      sulphur contaminants},
      reportid     = {FZJ-2022-03452},
      pages        = {A1413},
      year         = {2022},
      abstract     = {The indirect electrification of the sectors heating,
                      mobility and chemical industry by power-to-X processes may
                      play a significant role in transforming our energy system,
                      because not all processes can easily use electrical power
                      directly. The high-temperature co-electrolysis is
                      particularly well suited to produce synthesis gas as
                      feedstock for various power-to-fuel and power-to-chemicals
                      processes.Besides the energy- and cost-intensive direct air
                      capture, biogenic carbon dioxide emissions are promising
                      candidate for supplying the CO2. Biogas contains between 30
                      - 50 vol. $\%$ of CO2 besides methane and trace impurities
                      and is available in a significant amount in Europe. The
                      biogas can be upgraded by separating the CO2 and methane.
                      However, since the upgrade plants add additional costs and
                      the combination is often not economically viable, biogas is
                      in most cases directly burned in CHP plants.To harness the
                      significant carbon potential of biogas, an oxyfuel
                      combustion may be used, which avoids the dilution of CO2
                      with nitrogen from the air and emits a mixture of steam and
                      CO2 that could be used directly in a co-electrolysis system
                      for re-usage of CO2. Recent investigations show, that this
                      mixture can be supplied for low costs by retrofitting
                      existing biogas combustion to an oxyfuel combustion. This
                      contribution will investigate the performance and operation
                      of short-stacks containing Ni/YSZ-based solid-oxide cells
                      with simulated flue gases from such a biogas-oxyfuel
                      process.However, biogas also contains trace impurities
                      originating from the biomass, foremost sulfuric species and
                      siloxanes. Before combustion, these are partially removed
                      from the gas, but some traces remain and are converted to
                      oxidized combustion products. In particular, the impact of
                      these oxidized contaminants on the degradation behavior of
                      the cells will be considered and experimentally
                      investigated.},
      month         = {Jul},
      date          = {2022-07-05},
      organization  = {15th EUROPEAN SOFC $\&$ SOE FORUM,
                       Lucerne (Switzerland), 5 Jul 2022 - 8
                       Jul 2022},
      cin          = {IEK-9 / IEK-14},
      cid          = {I:(DE-Juel1)IEK-9-20110218 / I:(DE-Juel1)IEK-14-20191129},
      pnm          = {1232 - Power-based Fuels and Chemicals (POF4-123) /
                      Verbundvorhaben P2X-2: Erforschung, Validierung und
                      Implementierung von 'Power-to-X' Konzepten ' Teilvorhaben
                      Z0-2 (03SFK2Z0-2)},
      pid          = {G:(DE-HGF)POF4-1232 / G:(BMBF)03SFK2Z0-2},
      typ          = {PUB:(DE-HGF)8},
      url          = {https://juser.fz-juelich.de/record/909831},
}