CA2486706A1 - Method and system for thermal management of a fuel cell - Google Patents

Method and system for thermal management of a fuel cell Download PDF

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Publication number
CA2486706A1
CA2486706A1 CA002486706A CA2486706A CA2486706A1 CA 2486706 A1 CA2486706 A1 CA 2486706A1 CA 002486706 A CA002486706 A CA 002486706A CA 2486706 A CA2486706 A CA 2486706A CA 2486706 A1 CA2486706 A1 CA 2486706A1
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CA
Canada
Prior art keywords
fuel cell
methane
methanator
supply stream
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002486706A
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French (fr)
Other versions
CA2486706C (en
Inventor
Karl Foger
Scott Neil Barrett
Thang Pham
Khaliq Ahmed
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Ceramic Fuel Cells Ltd
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Individual
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Publication of CA2486706A1 publication Critical patent/CA2486706A1/en
Application granted granted Critical
Publication of CA2486706C publication Critical patent/CA2486706C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M2008/1293—Fuel cells with solid oxide electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M2008/147—Fuel cells with molten carbonates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0637—Direct internal reforming at the anode of the fuel cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Abstract

A method for the thermal management of a fuel cell, which method comprises: processing a fuel supply stream comprising hydrogen, steam, at least one carbon oxide and optionally methane using a methanator to produce a fuel cel l supply stream comprising a controlled concentration of methane; and reformin g within the fuel cell methane present in the fuel cell supply stream, wherein the way in which the methanator is operated is adjusted in response to fluctuations in the temperature of the fuel cell such that the concentration of methane in the fuel cell supply stream is controlled in order to achieve a desired level of reforming of methane within the fuel cell.

Claims (13)

1. A method for the thermal management of a fuel cell, which method comprises:
processing a fuel supply stream comprising hydrogen, steam, at least one carbon oxide and optionally methane using a methanator to produce a fuel cell supply stream Comprising a controlled concentration of methane; and reforming within the fuel cell methane present in the fuel cell supply stream, wherein the way in which the methanator is operated is adjusted in response to fluctuations in the temperature of the fuel cell such that the concentration of methane in the fuel cell supply stream is controlled in order to achieve a desired level of reforming of methane within the fuel cell, the methanator being by-passed in order to vary the amount of fuel supply stream which is processed by the methanator in order to achieve a rapid response in methane production depending on fluctuations in fuel cell temperature on transitions between differing load demands on the fuel cell.
2. A method according to claim 1, wherein the methane concentration in the fuel cell supply stream is controlled by varying the temperature and/or pressure at which the methanator is operated.
3. A method according to claim 1, wherein the methane concentration in the fuel cell supply stream is controlled by varying the amount of steam supplied to the methanator.
4. A method according to claim 1, wherein a fuel is processed upstream of the methanator in order to produce the fuel supply stream.
5. A method according to claim 4, wherein the fuel is petrol, diesel, LPG, LNG, an alcohol or natural gas.
6. A method according to claim 4, wherein the fuel is bioethanol, biodiesel, rapeseed oil, rapeseed methyl ester, canola oil, canola methyl ester, corn oil, hemp oil, switch grass oil, fatty acid methyl esters, linseed oil, linseed methyl ester, sunflower oil, sunflower oil methyl ester, soy bean oil, palmitic acid, lauric acid, stearic acid or lanoleic acid.
7. A method according to claim 4, wherein the fuel is processed using an autothermal reformer, a catalytic partial oxidation reactor or partial oxidation reactor.
8. A method according to claim 1, wherein the fuel cell is a solid oxide fuel cell or a molten carbonate fuel cell.
9. A method according to claim 1, wherein the fuel cell forms part of an auxiliary power unit.
10. A method according to claim 9, wherein the auxiliary power unit is used in an automotive application.
11. A fuel cell system comprising:
a methanator suitable for processing a fuel supply stream comprising hydrogen, steam, at least one carbon oxide and optionally methane to produce a fuel cell supply stream comprising a controlled concentration of methane; and a fuel cell which is provided downstream of and in communication with the methanator and which is suitable for reforming methane present in the fuel cell supply stream delivered to an anode of the fuel cell from the methanator, wherein the system comprises means for adjusting the way in which the methanator is operated in response to fluctuations in the temperature of the fuel cell such that the concentration of methane in the fuel cell supply stream is controlled in order to achieve a desired level of reforming of methane within the fuel cell, said means comprising a methanator by-pass to vary the amount of fuel supply stream supplied to the methanator.
12. A feel cell system according to claim 11, which forms part of an auxiliary power unit.
13. A fuel cell system according to claim 12, wherein the auxiliary power unit is used in an automotive application.
CA2486706A 2002-05-21 2003-05-20 Method and system for thermal management of a fuel cell Expired - Fee Related CA2486706C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPS2448 2002-05-21
AUPS2448A AUPS244802A0 (en) 2002-05-21 2002-05-21 Fuel cell system
PCT/AU2003/000609 WO2003098728A1 (en) 2002-05-21 2003-05-20 Fuel cell system

Publications (2)

Publication Number Publication Date
CA2486706A1 true CA2486706A1 (en) 2003-11-27
CA2486706C CA2486706C (en) 2011-04-19

Family

ID=3836014

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2486706A Expired - Fee Related CA2486706C (en) 2002-05-21 2003-05-20 Method and system for thermal management of a fuel cell

Country Status (8)

Country Link
US (1) US8057947B2 (en)
EP (1) EP1506589B1 (en)
JP (1) JP4515253B2 (en)
AT (1) ATE473527T1 (en)
AU (2) AUPS244802A0 (en)
CA (1) CA2486706C (en)
DE (1) DE60333283D1 (en)
WO (1) WO2003098728A1 (en)

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Also Published As

Publication number Publication date
US8057947B2 (en) 2011-11-15
AU2003229365A1 (en) 2003-12-02
AU2003229365B2 (en) 2008-10-16
CA2486706C (en) 2011-04-19
JP4515253B2 (en) 2010-07-28
JP2005535068A (en) 2005-11-17
EP1506589A4 (en) 2007-11-07
EP1506589B1 (en) 2010-07-07
ATE473527T1 (en) 2010-07-15
US20050181247A1 (en) 2005-08-18
AUPS244802A0 (en) 2002-06-13
WO2003098728A1 (en) 2003-11-27
DE60333283D1 (en) 2010-08-19
EP1506589A1 (en) 2005-02-16

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