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Operation of SOFC Short-Stacks with Simulated Bio-Syngas: Influence of Model Tars Naphthalene and Phenol.

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Title: Operation of SOFC Short-Stacks with Simulated Bio-Syngas: Influence of Model Tars Naphthalene and Phenol.
Authors: Hauser, Michael1, Herrmann, Stephan1 stephan.herrmann@tum.de, Hauck, Maximilian1, Fendt, Sebastian1, Lenser, Christian2, Menzler, Norbert H.2, Spliethoff, Hartmut1
Source: Journal of The Electrochemical Society. Sep2020, Vol. 167 Issue 12, p1-9. 9p.
Subjects: Solid oxide fuel cells, Naphthalene derivatives, Phenol, Biomass gasification, Methane, Carbon monoxide, Electric potential
Abstract: Operation of solid oxide fuel cells (SOFCs) with bio-syngas from the gasification of biomass is a promising approach to highly efficient and sustainable power generation. At the same time, the coupling is challenging as several biogenic impurities in the biosyngas have a negative effect on the SOFC. For this paper the impacts of the impurities naphthalene and phenol on SOFC shortstacks were investigated experimentally for the first time. The cell in the stacks were anode-supported SOFCs with Ni/YSZ anode. The experiments were performed at 700 °C under load with simulated bio-syngas consisting of hydrogen, carbon monoxide, carbon dioxide, methane and water vapor. 2 g Nm−3 of naphthalene (350 ppm) caused a pronounced voltage drop and an increase in cell temperature. By analysing the anode off-gas and recording of I–V-curves, it could be shown that naphthalene blocked the electrochemical hydrogen oxidation as well as the reforming of methane and the shift reaction of carbon monoxide. Up to 8 g Nm−3 of phenol (1900 ppm), on the other hand, led to carbon deposition and irreversibly damaged the structure of the anode substrate by metal dusting. This form of degradation was not visible in the electrochemical data during operation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of The Electrochemical Society is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 145743703
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  Data: Operation of SOFC Short-Stacks with Simulated Bio-Syngas: Influence of Model Tars Naphthalene and Phenol.
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  Data: <searchLink fieldCode="AR" term="%22Hauser%2C+Michael%22">Hauser, Michael</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Herrmann%2C+Stephan%22">Herrmann, Stephan</searchLink><relatesTo>1</relatesTo><i> stephan.herrmann@tum.de</i><br /><searchLink fieldCode="AR" term="%22Hauck%2C+Maximilian%22">Hauck, Maximilian</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fendt%2C+Sebastian%22">Fendt, Sebastian</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lenser%2C+Christian%22">Lenser, Christian</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Menzler%2C+Norbert+H%2E%22">Menzler, Norbert H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Spliethoff%2C+Hartmut%22">Spliethoff, Hartmut</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+The+Electrochemical+Society%22">Journal of The Electrochemical Society</searchLink>. Sep2020, Vol. 167 Issue 12, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Solid+oxide+fuel+cells%22">Solid oxide fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Naphthalene+derivatives%22">Naphthalene derivatives</searchLink><br /><searchLink fieldCode="DE" term="%22Phenol%22">Phenol</searchLink><br /><searchLink fieldCode="DE" term="%22Biomass+gasification%22">Biomass gasification</searchLink><br /><searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+monoxide%22">Carbon monoxide</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+potential%22">Electric potential</searchLink>
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  Data: Operation of solid oxide fuel cells (SOFCs) with bio-syngas from the gasification of biomass is a promising approach to highly efficient and sustainable power generation. At the same time, the coupling is challenging as several biogenic impurities in the biosyngas have a negative effect on the SOFC. For this paper the impacts of the impurities naphthalene and phenol on SOFC shortstacks were investigated experimentally for the first time. The cell in the stacks were anode-supported SOFCs with Ni/YSZ anode. The experiments were performed at 700 °C under load with simulated bio-syngas consisting of hydrogen, carbon monoxide, carbon dioxide, methane and water vapor. 2 g Nm−3 of naphthalene (350 ppm) caused a pronounced voltage drop and an increase in cell temperature. By analysing the anode off-gas and recording of I–V-curves, it could be shown that naphthalene blocked the electrochemical hydrogen oxidation as well as the reforming of methane and the shift reaction of carbon monoxide. Up to 8 g Nm−3 of phenol (1900 ppm), on the other hand, led to carbon deposition and irreversibly damaged the structure of the anode substrate by metal dusting. This form of degradation was not visible in the electrochemical data during operation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Journal of The Electrochemical Society is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1149/1945-7111/ababd6
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      – Code: eng
        Text: English
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        PageCount: 9
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      – SubjectFull: Solid oxide fuel cells
        Type: general
      – SubjectFull: Naphthalene derivatives
        Type: general
      – SubjectFull: Phenol
        Type: general
      – SubjectFull: Biomass gasification
        Type: general
      – SubjectFull: Methane
        Type: general
      – SubjectFull: Carbon monoxide
        Type: general
      – SubjectFull: Electric potential
        Type: general
    Titles:
      – TitleFull: Operation of SOFC Short-Stacks with Simulated Bio-Syngas: Influence of Model Tars Naphthalene and Phenol.
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              M: 09
              Text: Sep2020
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              Y: 2020
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