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Selective CO Methanation in H₂-Rich Gas for Household Fuel Cell Applications

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005412
URN to cite this document: urn:nbn:de:bvb:703-epub-5412-6

Title data

Garbis, Panagiota Katherina ; Jess, Andreas:
Selective CO Methanation in H₂-Rich Gas for Household Fuel Cell Applications.
In: Energies. Vol. 13 (2020) Issue 11 . - No. 2844.
ISSN 1996-1073
DOI der Verlagsversion: https://doi.org/10.3390/en13112844

Format: PDF
Name: energies-13-02844.pdf
Version: Published Version
Available under License Creative Commons BY 4.0: Attribution
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Polymer electrolyte membrane fuel cells (PEMFCs) are often used for household applications, utilizing hydrogen produced from natural gas from the gas grid. The hydrogen is thereby produced by steam reforming of natural gas followed by a water gas shift (WGS) unit. The H2-rich gas contains besides CO2 small amounts of CO, which deactivates the catalyst used in the PEMFCs. Preferential oxidation has so far been a reliable process to reduce this concentration but valuable H2 is also partly converted. Selective CO methanation considered as an attractive alternative. However, CO2 methanation consuming the valuable H2 has to be minimized. The modelling of selective CO methanation in a household fuel cell system is presented. The simulation was conducted for single and two-stage adiabatic fixed bed reactors (in the latter case with intermediate cooling), and the best operating conditions to achieve the required residual CO content (100 ppm) were calculated. This was done by varying the gas inlet temperature as well as the mass of the catalyst. The feed gas represented a reformate gas downstream of a typical WGS reaction unit (0.5%–1% CO, 10%–25% CO2, and 5%–20% H2O (rest H2)).

Further data

Item Type: Article in a journal
Keywords: CO methanation; ruthenium catalyst; process simulation; adiabatic reactor
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions
Research Institutions > Research Units
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-5412-6
Date Deposited: 22 Apr 2021 09:10
Last Modified: 22 Apr 2021 09:11
URI: https://epub.uni-bayreuth.de/id/eprint/5412


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