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Title: Solid-oxide fuel cell system having an upstream reformate combustor

Abstract

A solid-oxide fuel cell system wherein a reformate combustor is disposed in the reformate flow path between a hydrocarbon reformer and a fuel cell stack. At system start-up, reformate is partially burned within the combustor by admitting combustion air, and the partially-burned reformate is passed through the anode chambers of the stack to warm the anodes. In addition, reformate is passed through a cathode-air heat exchanger to warm combustion air entering the cathode chambers of the stack. The combustor may continue to be supplied with a low level of air during steady-state operation of the SOFC, thereby providing a moist environment within the anode chambers to prevent coking of the anodes and providing additional heat to the reformate. The combustor decouples the reformer from the stack thermodynamically, permitting the reformer and the stack each to run in its own optimal temperature range.

Inventors:
; ; ;
Publication Date:
Research Org.:
Delphi Technologies, Inc., Troy, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531622
Patent Number(s):
7,645,532
Application Number:
10/909,577
Assignee:
Delphi Technologies, Inc. (Troy, MI)
DOE Contract Number:  
FC26-02NT41246
Resource Type:
Patent
Resource Relation:
Patent File Date: 2004-08-02
Country of Publication:
United States
Language:
English

Citation Formats

Weiss, Amanda M., Mukerjee, Subhasish, Haltiner, Jr., Karl J., and Alexander, Gregory W. Solid-oxide fuel cell system having an upstream reformate combustor. United States: N. p., 2010. Web.
Weiss, Amanda M., Mukerjee, Subhasish, Haltiner, Jr., Karl J., & Alexander, Gregory W. Solid-oxide fuel cell system having an upstream reformate combustor. United States.
Weiss, Amanda M., Mukerjee, Subhasish, Haltiner, Jr., Karl J., and Alexander, Gregory W. Tue . "Solid-oxide fuel cell system having an upstream reformate combustor". United States. https://www.osti.gov/servlets/purl/1531622.
@article{osti_1531622,
title = {Solid-oxide fuel cell system having an upstream reformate combustor},
author = {Weiss, Amanda M. and Mukerjee, Subhasish and Haltiner, Jr., Karl J. and Alexander, Gregory W.},
abstractNote = {A solid-oxide fuel cell system wherein a reformate combustor is disposed in the reformate flow path between a hydrocarbon reformer and a fuel cell stack. At system start-up, reformate is partially burned within the combustor by admitting combustion air, and the partially-burned reformate is passed through the anode chambers of the stack to warm the anodes. In addition, reformate is passed through a cathode-air heat exchanger to warm combustion air entering the cathode chambers of the stack. The combustor may continue to be supplied with a low level of air during steady-state operation of the SOFC, thereby providing a moist environment within the anode chambers to prevent coking of the anodes and providing additional heat to the reformate. The combustor decouples the reformer from the stack thermodynamically, permitting the reformer and the stack each to run in its own optimal temperature range.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {1}
}

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Works referenced in this record:

Hybrid electrical power system
patent, October 1999


Method for soot-free start-up of autothermal reformers
patent, September 2000


Solid electrolyte fuel cell power generating system
patent, October 2001


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