0
RESEARCH PAPERS

Feasibility of Autothermally Reformed Natural Gas on Anode Supported Solid Oxide Fuel Cells

[+] Author and Article Information
Matti Noponen, Matias Halinen, Jari Kiviaho, Jaakko Saarinen

 VTT Technical Research Centre of Finland, Biologinkuja 3-5, P.O. Box 1000, FIN-02044 VTT, Finland

J. Fuel Cell Sci. Technol 3(4), 438-444 (Mar 24, 2006) (7 pages) doi:10.1115/1.2349526 History: Received November 30, 2005; Revised March 24, 2006

Three different planar anode supported solid oxide fuel cells (SOFC) were tested with hydrogen, with autothermally prereformed natural gas from which sulfur was removed, and with autothermally prereformed natural gas that contained sulfur. The cells were obtained from Forschungszentrum Jülich (FZJ), Energy research Centre of the Netherlands (ECN), and HTceramix SA (HTc). All cells were so called Real-SOFC first generation cells. Cell polarizations were first measured with hydrogen, followed by a 200h test (25A, 800°C) with a selected fuel, and finally cell polarizations were measured with hydrogen. When hydrogen was used as the fuel in the 200h test, the performance for all cells was comparable and no degradation was observed. All cells underwent an initial deactivation process when reformate fuels were used but their cell voltage stabilized during the first 50h. All cells also showed deactivation after the reformate tests when the area specific resistance values were compared to the values obtained from the hydrogen tests. The deactivation was comparable between the sulfur-free and sulfur-rich reformate tests. Sulfur-rich reformate, however, caused oscillation in cell voltages as the sulfur level in natural gas was not constant.

FIGURES IN THIS ARTICLE
<>
Copyright © 2006 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Performance of the HTc cell on hydrogen

Grahic Jump Location
Figure 2

Performance of the FZJ cell on hydrogen

Grahic Jump Location
Figure 3

Performance of the ECN cell on hydrogen

Grahic Jump Location
Figure 4

Performance of the ECN cell on hydrogen and long retention time. Voltage responses are shown only at the same current densities as in Fig. 3 for clarity.

Grahic Jump Location
Figure 5

Molar fractions of the ATR products as a function of time

Grahic Jump Location
Figure 6

Steam to methane ratio (xH2O∕xCH4), methane conversion and the faradic equivalent current of the reformate (Ifuel) as a function of time

Grahic Jump Location
Figure 7

Durability of the HTc cell on hydrogen (a), sulfur-free ATR (b), and sulfur-rich ATR (c). Fuel and air utilizations are 20%, and cell temperature 800°C.

Grahic Jump Location
Figure 8

Durability of the FZJ cell on hydrogen (a), sulfur-free ATR (b), and sulfur-rich ATR (c). Fuel and air utilizations are 20%, and cell temperature 800°C.

Grahic Jump Location
Figure 9

Durability of the ECN cell on hydrogen (a), sulfur-free ATR (b), and sulfur-rich ATR (c). Fuel and air utilizations are 20%, and cell temperature 800°C.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In