LAPSE:2021.0371
Published Article
LAPSE:2021.0371
Analysis of Soot Deposition Mechanisms on Nickel-Based Anodes of SOFCs in Single-Cell and Stack Environment
Konrad Motylinski, Marcin Blesznowski, Marek Skrzypkiewicz, Michal Wierzbicki, Agnieszka Zurawska, Arkadiusz Baran, Maciej Bakala, Jakub Kupecki
May 17, 2021
Solid oxide fuel cells (SOFCs) can be fueled with various gases, including carbon-containing compounds. High operating temperatures, exceeding 600 °C, and the presence of a porous, nickel-based SOFC anode, might lead to the formation of solid carbon particles from fuels such as carbon monoxide and other gases with hydrocarbon-based compounds. Carbon deposition on fuel electrode surfaces can cause irreversible damage to the cell, eventually destroying the electrode. Soot formation mechanisms are strictly related to electrochemical, kinetic, and thermodynamic conditions. In the current study, the effects of carbon deposition on the lifetime and performance of SOFCs were analyzed in-operando, both in single-cell and stack conditions. It was observed that anodic gas velocity has an impact on soot formation and deposition, thus it was also studied in depth. Single-anode-supported solid oxide fuel cells were fueled with gases delivered in such a way that the initial velocities in the anodic compartment ranged from 0.1 to 0.7 m/s. Both cell operation and post-mortem observations proved that the carbon deposition process accelerates at higher anodic gas velocity. Furthermore, single-cell results were verified in an SOFC stack operated in carbon-deposition regime by dry-coupling with a downdraft 150 kWth biomass gasifier.
Keywords
Boudouard reaction, carbon deposition, SOFC
Suggested Citation
Motylinski K, Blesznowski M, Skrzypkiewicz M, Wierzbicki M, Zurawska A, Baran A, Bakala M, Kupecki J. Analysis of Soot Deposition Mechanisms on Nickel-Based Anodes of SOFCs in Single-Cell and Stack Environment. (2021). LAPSE:2021.0371
Author Affiliations
Motylinski K: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland; Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25
Blesznowski M: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland
Skrzypkiewicz M: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland [ORCID]
Wierzbicki M: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland; Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25
Zurawska A: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland
Baran A: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland; Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25 [ORCID]
Bakala M: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland; Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25
Kupecki J: Institute of Power Engineering, Mory 8, 01-330 Warsaw, Poland; Center for Hydrogen Technologies (CTH2), Institute of Power Engineering, Augustowka 36, 02-981 Warsaw, Poland; National Fuel Cell Research Center (NFCRC), University of California, Irvine Engi
Journal Name
Processes
Volume
8
Issue
11
Article Number
E1370
Year
2020
Publication Date
2020-10-29
Published Version
ISSN
2227-9717
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PII: pr8111370, Publication Type: Journal Article
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LAPSE:2021.0371
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doi:10.3390/pr8111370
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May 17, 2021
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May 17, 2021
 
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Calvin Tsay
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