Operation of solid oxide fuel cells with alternative hydrogen carriers

Anke Hagen*, Hendrik Langnickel, Xiufu Sun

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Future electricity production will use fossil-free sources with zero CO2 emission or closed carbon cycle technologies based on renewable sources. While hydrogen is considered a key energy source, its production at present time relies heavily on fossil fuels. Furthermore, distribution and storage are not well established and require substantial investments. This is a strong motivation to identify alternative, safe, high power density hydrogen carriers, where existing logistics and infrastructure can be utilized. In this contribution, ammonia and biogas are considered for high-efficient electricity production in solid oxide fuel cells (SOFCs). It is demonstrated that the properties and operating conditions of SOFC allow for direct use of these fuels, with fuel pretreatment inside the SOFC anode. The high efficient electricity production using pure ammonia or real biogas was successfully proven on state-of-the-art SOFCs. Even without optimization of operating parameters, electrical efficiencies of 40–50% and high and stable power output were demonstrated.
Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Volume44
Issue number33
Pages (from-to)18382-18392
ISSN0360-3199
DOIs
Publication statusPublished - 2019

Keywords

  • SOFC
  • Hydrogen carrier
  • Ammonia
  • Biogas
  • Efficiency

Cite this

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title = "Operation of solid oxide fuel cells with alternative hydrogen carriers",
abstract = "Future electricity production will use fossil-free sources with zero CO2 emission or closed carbon cycle technologies based on renewable sources. While hydrogen is considered a key energy source, its production at present time relies heavily on fossil fuels. Furthermore, distribution and storage are not well established and require substantial investments. This is a strong motivation to identify alternative, safe, high power density hydrogen carriers, where existing logistics and infrastructure can be utilized. In this contribution, ammonia and biogas are considered for high-efficient electricity production in solid oxide fuel cells (SOFCs). It is demonstrated that the properties and operating conditions of SOFC allow for direct use of these fuels, with fuel pretreatment inside the SOFC anode. The high efficient electricity production using pure ammonia or real biogas was successfully proven on state-of-the-art SOFCs. Even without optimization of operating parameters, electrical efficiencies of 40–50{\%} and high and stable power output were demonstrated.",
keywords = "SOFC, Hydrogen carrier, Ammonia, Biogas, Efficiency",
author = "Anke Hagen and Hendrik Langnickel and Xiufu Sun",
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Operation of solid oxide fuel cells with alternative hydrogen carriers. / Hagen, Anke; Langnickel, Hendrik; Sun, Xiufu.

In: International Journal of Hydrogen Energy, Vol. 44, No. 33, 2019, p. 18382-18392.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Operation of solid oxide fuel cells with alternative hydrogen carriers

AU - Hagen, Anke

AU - Langnickel, Hendrik

AU - Sun, Xiufu

PY - 2019

Y1 - 2019

N2 - Future electricity production will use fossil-free sources with zero CO2 emission or closed carbon cycle technologies based on renewable sources. While hydrogen is considered a key energy source, its production at present time relies heavily on fossil fuels. Furthermore, distribution and storage are not well established and require substantial investments. This is a strong motivation to identify alternative, safe, high power density hydrogen carriers, where existing logistics and infrastructure can be utilized. In this contribution, ammonia and biogas are considered for high-efficient electricity production in solid oxide fuel cells (SOFCs). It is demonstrated that the properties and operating conditions of SOFC allow for direct use of these fuels, with fuel pretreatment inside the SOFC anode. The high efficient electricity production using pure ammonia or real biogas was successfully proven on state-of-the-art SOFCs. Even without optimization of operating parameters, electrical efficiencies of 40–50% and high and stable power output were demonstrated.

AB - Future electricity production will use fossil-free sources with zero CO2 emission or closed carbon cycle technologies based on renewable sources. While hydrogen is considered a key energy source, its production at present time relies heavily on fossil fuels. Furthermore, distribution and storage are not well established and require substantial investments. This is a strong motivation to identify alternative, safe, high power density hydrogen carriers, where existing logistics and infrastructure can be utilized. In this contribution, ammonia and biogas are considered for high-efficient electricity production in solid oxide fuel cells (SOFCs). It is demonstrated that the properties and operating conditions of SOFC allow for direct use of these fuels, with fuel pretreatment inside the SOFC anode. The high efficient electricity production using pure ammonia or real biogas was successfully proven on state-of-the-art SOFCs. Even without optimization of operating parameters, electrical efficiencies of 40–50% and high and stable power output were demonstrated.

KW - SOFC

KW - Hydrogen carrier

KW - Ammonia

KW - Biogas

KW - Efficiency

U2 - 10.1016/j.ijhydene.2019.05.065

DO - 10.1016/j.ijhydene.2019.05.065

M3 - Journal article

VL - 44

SP - 18382

EP - 18392

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 33

ER -