An analysis of biogas reforming process on Ni/SDC catalyst

G. Brus, Y. Komatsu, S. Kimijima, J. S. Szmyd

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The conversion of biogas to electricity presents an attractive niche application for fuel cells. Thus attempts have been made to use biogas as a fuel for high temperature fuel cell systems such as SOFC. Biogas can be converted to hydrogen-rich fuel in a reforming process. For hydrocarbon-based fuel, three types of fuel conversion can be considered in reforming reactions: an external reforming system, an indirect internal reforming system and a direct internal reforming system. High-temperature SOFC eliminates the need for an expensive external reforming system. The possibility of using internal reforming is one of the characteristics of high temperature fuel cells like SOFC. However, for hightemperature operation, thermal management of the SOFC system becomes an important issue. To properly carry out thermal management, both detailed modeling and numerical analyses of the phenomena occurring inside the SOFC system is required. In the present work, the process of reforming biogas on an Ni/SDC catalyst has been numerically and experimentally investigated. Measurements including different thermal boundary conditions, steam-to-carbon ratios and several different fuel compositions were taken. A numerical model containing methane/steam reforming reaction, dry reforming reaction and shift reaction has been proposed to predict the gas mixture composition at the outlet of the reformer. The results of the numerical computation were compared with experimental data and good agreement has been found. The results indicate the importance of combined, numerical and experimental studies in the design of SOFC reformers. The combined approach used leads to the successful prediction of the outlet gas composition for different modelling conditions.

Original languageEnglish
Title of host publicationBiomass and Renewable
PublisherAabo Akademi University
Pages207-215
Number of pages9
ISBN (Print)9781456303112
Publication statusPublished - 2010 Jan 1
Event23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 - Lausanne, Switzerland
Duration: 2010 Jun 142010 Jun 17

Publication series

NameProceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
Volume2

Conference

Conference23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
CountrySwitzerland
CityLausanne
Period10/6/1410/6/17

Keywords

  • Biogas reforming
  • Dry reforming
  • Methane/steam reforming
  • Ni/SDC catalyst

ASJC Scopus subject areas

  • Energy(all)
  • Environmental Science(all)

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