Solid-oxide fuel cell system having means for controlling tail gas combustion temperature
Abstract
In a solid-oxide fuel cell system, the fuel cell tail gas contains significant residual amounts of combustibles which are burned in a combustor with spent cathode air to reduce system emissions and to reclaim chemical energy in the form of heat, the hot exhaust being used to pre-heat air entering the fuel cell system. The tail gas combustibles content can vary widely as can the combustion temperature. When the temperature becomes unacceptably low, a control valve in the spent cathode air return is adjusted to divert a portion of the air around the combustor, thus enriching the fuel/air mixture and causing the combustion temperature to increase. When the temperature becomes unacceptably high, a control valve in the combustor fresh air supply is adjusted to provide more air, thus causing the mixture to become leaner and the combustion temperature to decrease.
- Inventors:
- Issue Date:
- Research Org.:
- Delphi Technologies, Inc., Troy, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531503
- Patent Number(s):
- 7001682
- Application Number:
- 10/178,863
- Assignee:
- Delphi Technologies, Inc. (Troy, MI)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- FC26-02NT41246
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2002-06-24
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Haltiner, Jr., Karl J. Solid-oxide fuel cell system having means for controlling tail gas combustion temperature. United States: N. p., 2006.
Web.
Haltiner, Jr., Karl J. Solid-oxide fuel cell system having means for controlling tail gas combustion temperature. United States.
Haltiner, Jr., Karl J. Tue .
"Solid-oxide fuel cell system having means for controlling tail gas combustion temperature". United States. https://www.osti.gov/servlets/purl/1531503.
@article{osti_1531503,
title = {Solid-oxide fuel cell system having means for controlling tail gas combustion temperature},
author = {Haltiner, Jr., Karl J.},
abstractNote = {In a solid-oxide fuel cell system, the fuel cell tail gas contains significant residual amounts of combustibles which are burned in a combustor with spent cathode air to reduce system emissions and to reclaim chemical energy in the form of heat, the hot exhaust being used to pre-heat air entering the fuel cell system. The tail gas combustibles content can vary widely as can the combustion temperature. When the temperature becomes unacceptably low, a control valve in the spent cathode air return is adjusted to divert a portion of the air around the combustor, thus enriching the fuel/air mixture and causing the combustion temperature to increase. When the temperature becomes unacceptably high, a control valve in the combustor fresh air supply is adjusted to provide more air, thus causing the mixture to become leaner and the combustion temperature to decrease.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 21 00:00:00 EST 2006},
month = {Tue Feb 21 00:00:00 EST 2006}
}
Works referenced in this record:
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Works referencing / citing this record:
Solid oxide fuel cell with flexible fuel rod support structure
patent, October 2018
- Palumbo, Nathan; Persky, Joshua; Heinig, Brendan
- US Patent Document 10,109,867
Fuel cell assemblies with integrated reactant-conditioning heat exchangers
patent, April 2011
- Vanderwees, Doug
- US Patent Document 7,923,162
Solid oxide fuel cell systems with hot zones having improved reactant distribution
patent, December 2013
- Poshusta, Joseph C.; Booten, Charles W.; Martin, Jerry L.
- US Patent Document 8,614,023
Solid oxide fuel cell systems with hot zones having improved reactant distribution
patent, May 2016
- Poshusta, Joseph C.; Booten, Charles W.; Martin, Jerry L.
- US Patent Document 9,343,758