WO2004070866A2 - Procede d'utilisation de la chaleur perdue d'un reformeur de pile a combustible - Google Patents

Procede d'utilisation de la chaleur perdue d'un reformeur de pile a combustible Download PDF

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Publication number
WO2004070866A2
WO2004070866A2 PCT/DE2004/000212 DE2004000212W WO2004070866A2 WO 2004070866 A2 WO2004070866 A2 WO 2004070866A2 DE 2004000212 W DE2004000212 W DE 2004000212W WO 2004070866 A2 WO2004070866 A2 WO 2004070866A2
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
reformer
reaction gases
fuel cell
compressor
Prior art date
Application number
PCT/DE2004/000212
Other languages
German (de)
English (en)
Other versions
WO2004070866A3 (fr
Inventor
Claus Hoffjann
Hans-Jürgen Heinrich
Original Assignee
Airbus Deutschland Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Airbus Deutschland Gmbh filed Critical Airbus Deutschland Gmbh
Publication of WO2004070866A2 publication Critical patent/WO2004070866A2/fr
Publication of WO2004070866A3 publication Critical patent/WO2004070866A3/fr

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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
    • H01M8/06—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
    • H01M8/04—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
    • 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

Definitions

  • the invention relates to methods for using waste heat from a fuel cell reformer for the purpose of splitting off hydrogen from hydrocarbons and water, the reaction gases of the reformer being expanded and thus cooled in at least one turbine with one or more turbine stages, and wherein the rotational energy obtained in the turbine is in Compressed air, hydraulic and / or electrical energy generators are used and / or any mechanical devices (20) are provided as kinetic energy.
  • hydrocarbons such as, for example, B. natural gas or mineral oil products (gasoline, diesel, kerosene, etc.) and air.
  • hydrocarbons they have to be converted by splitting the molecular chains and oxidizing the carbon contained in a reformer process so that free hydrogen atoms can ultimately be made available to the fuel cell for reaction.
  • high-temperature fuel cells e.g. oxide ceramic fuel cell - SOFC or molten carbonate fuel cell - MCFC
  • these reformer processes take place internally at temperatures of approx. 600-1000 ° C.
  • the invention is based on the object of creating a method of the type mentioned at the outset in which the waste heat and heated reaction gases which occur in external reformer processes are used to generate energy by means of fuel cells.
  • the object is achieved in that gray water is processed by evaporation for use in the reformer process, and that the casing of the device is used in whole or in part for preheating and evaporation of the fuels to be reformed and the amount of water supplied.
  • Embodiments of the method according to the invention are described in subclaims 2 to 6.
  • An arrangement according to the invention for carrying out the method is characterized in that the compressor and turbine are mechanically connected to one another via a shaft, and in that a gear is interposed between the shaft connection.
  • a major advantage of the invention is - in addition to the use of the waste heat and heated reaction gases occurring in external reformer processes in a turbine for energy generation - that the fuel reformer is supplied with water in addition to the hydrocarbon and air.
  • a hydrocarbon CXHY, atmospheric oxygen 02 and water H20 as reaction products produce hydrogen H2, a small proportion of carbon monoxide CO, carbon dioxide C02 and a remaining proportion of water vapor H20.
  • the nitrogen component N2 supplied by the air is partially oxidized to nitrogen oxide NOX.
  • the product that can be used for the fuel cell is hydrogen.
  • the other reaction gases are produced as exhaust gases.
  • a device for generating the hydrogen 13 from hydrocarbon is connected upstream of a fuel cell 1, to which oxygen 16 is also supplied in addition to hydrogen 13.
  • This device has, among other things, a compressor 3, a turbine 4 with one or more turbine stages, a reformer 5, an evaporator 6 or 7 and a heat exchanger (cooler) 8.
  • the turbine 4 is mechanically connected to the compressor 3 via a shaft connection with an intermediate gear 10 or a separable coupling element 9.
  • the compressor 3 can also be in mechanical connection via the shaft connection mentioned with a generator 18 for generating electrical energy or with a hydraulic motor 19 or a hydraulic pump 20.
  • the reaction gases from the reformer 5 must be cooled.
  • heat exchangers (coolers) 8 are used in a conventional manner.
  • the waste heat is completely waste heat that is given off to the surrounding atmosphere.
  • this heat exchanger 8 is to be supplemented by one or more upstream, single-stage or multi-stage turbines 4, in which or in which the reaction gases of the reformer 5 are first expanded and thus cooled.
  • the heat exchanger 8 is only intended to regulate the temperature to the optimum fuel cell level.
  • the rotational energy obtained from the turbine (s) 4 is used to generate compressed air, with which the reformer 5 and fuel cell 1 can be supplied proportionately (17 - bleed air).
  • a compressed air compressor 3 instead of the direct connection ses a compressed air compressor 3, the generation of electrical energy in the generator 1).
  • the condensate 1) obtained from the water and the remaining fractions of hydrocarbons when the reaction gases are cooled is advantageously returned to the reformer process.
  • the waste heat on the wall of the reformer cell is intended to evaporate 6, 7 fuel and / or water.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

Selon l'invention, il est prévu d'utiliser la chaleur perdue et des gaz de réaction chauffés résultant de processus réalisés dans un reformeur externe pour la production d'énergie au moyen de piles à combustibles. A cet effet, les gaz de réaction du reformeur sont détendus dans au moins une turbine présentant au moins un étage de turbine et ainsi refroidis. L'énergie de rotation obtenue dans la turbine est utilisée dans des générateurs d'énergie pneumatiques, hydrauliques, et/ou électriques et/ou mise à disposition de dispositifs mécaniques quelconques en tant qu'énergie de déplacement.
PCT/DE2004/000212 2003-02-07 2004-02-06 Procede d'utilisation de la chaleur perdue d'un reformeur de pile a combustible WO2004070866A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10305075A DE10305075A1 (de) 2003-02-07 2003-02-07 Verfahren zur Nutzung der Abwärme eines Brennstoffzellen-Reformers
DE10305075.2 2003-02-07

Publications (2)

Publication Number Publication Date
WO2004070866A2 true WO2004070866A2 (fr) 2004-08-19
WO2004070866A3 WO2004070866A3 (fr) 2006-02-02

Family

ID=32797328

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/000212 WO2004070866A2 (fr) 2003-02-07 2004-02-06 Procede d'utilisation de la chaleur perdue d'un reformeur de pile a combustible

Country Status (2)

Country Link
DE (1) DE10305075A1 (fr)
WO (1) WO2004070866A2 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943059A1 (de) * 1999-09-09 2001-03-15 Daimler Chrysler Ag System zur Auskondensation einer Flüssigkeit aus einem Gasstrom
DE10130095A1 (de) * 2000-08-25 2002-03-07 Gen Motors Corporotion Detroit Antriebseinrichtung für einen Kompressor eines Brennstoffzellensystems
WO2002039514A2 (fr) * 2000-11-13 2002-05-16 Honeywell International Inc. Turbocompresseur pneumatique a trois roues pour systemes de piles a combustible pem
WO2002070402A2 (fr) * 2001-03-05 2002-09-12 Shell Internationale Research Maatschappij B.V. Appareil et procede de production d'hydrogene
US20020160238A1 (en) * 2001-03-21 2002-10-31 Labinov Solomon Davidovich New fossil fuel combined cycle power system
US6510695B1 (en) * 1999-06-21 2003-01-28 Ormat Industries Ltd. Method of and apparatus for producing power

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523487A1 (de) * 1985-07-01 1987-01-08 Kloeckner Humboldt Deutz Ag Verfahren und anlage zur erzeugung von elektrischer energie
JPH106359A (ja) * 1996-06-19 1998-01-13 Fanuc Ltd 射出成形機
KR100501481B1 (ko) * 1997-06-09 2005-09-26 에어 워터 가부시키가이샤 가스발생장치및그를사용한가스발생방법
DE19908905C2 (de) * 1999-03-02 2003-03-20 Daimler Chrysler Ag Brennstoffzellensystem mit zugeordneter Wasserstofferzeugungsanlage
DE10053778A1 (de) * 2000-10-30 2002-05-08 Alstom Switzerland Ltd Verfahren zum Erzeugen eines Wasserstoff (H2) und Kohlenmonoxid (CO)enthaltenden Syngases sowie Vorrichtung zur Durchführung des Verfahrens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6510695B1 (en) * 1999-06-21 2003-01-28 Ormat Industries Ltd. Method of and apparatus for producing power
DE19943059A1 (de) * 1999-09-09 2001-03-15 Daimler Chrysler Ag System zur Auskondensation einer Flüssigkeit aus einem Gasstrom
DE10130095A1 (de) * 2000-08-25 2002-03-07 Gen Motors Corporotion Detroit Antriebseinrichtung für einen Kompressor eines Brennstoffzellensystems
WO2002039514A2 (fr) * 2000-11-13 2002-05-16 Honeywell International Inc. Turbocompresseur pneumatique a trois roues pour systemes de piles a combustible pem
WO2002070402A2 (fr) * 2001-03-05 2002-09-12 Shell Internationale Research Maatschappij B.V. Appareil et procede de production d'hydrogene
US20020160238A1 (en) * 2001-03-21 2002-10-31 Labinov Solomon Davidovich New fossil fuel combined cycle power system

Also Published As

Publication number Publication date
DE10305075A1 (de) 2004-09-02
WO2004070866A3 (fr) 2006-02-02

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