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WO2014117950A1 - Ensemble catalyseur pour un système de cellules à combustible à haute température - Google Patents

Ensemble catalyseur pour un système de cellules à combustible à haute température Download PDF

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Publication number
WO2014117950A1
WO2014117950A1 PCT/EP2014/000286 EP2014000286W WO2014117950A1 WO 2014117950 A1 WO2014117950 A1 WO 2014117950A1 EP 2014000286 W EP2014000286 W EP 2014000286W WO 2014117950 A1 WO2014117950 A1 WO 2014117950A1
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WO
WIPO (PCT)
Prior art keywords
catalyst
reforming
oxidation
catalytic converter
unit
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.)
Ceased
Application number
PCT/EP2014/000286
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German (de)
English (en)
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WO2014117950A8 (fr
Inventor
Jürgen RECHBERGER
Michael Reissig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVL List GmbH
Original Assignee
AVL List GmbH
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Filing date
Publication date
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Priority to DE112014000664.5T priority Critical patent/DE112014000664A5/de
Publication of WO2014117950A1 publication Critical patent/WO2014117950A1/fr
Publication of WO2014117950A8 publication Critical patent/WO2014117950A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/248—Reactors comprising multiple separated flow channels
    • B01J19/2495—Net-type reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/248—Reactors comprising multiple separated flow channels
    • B01J19/249—Plate-type reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
    • B01J8/025—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical in a cylindrical shaped bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0285—Heating or cooling the reactor
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00212—Plates; Jackets; Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00309—Controlling the temperature by indirect heat exchange with two or more reactions in heat exchange with each other, such as an endothermic reaction in heat exchange with an exothermic reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00823—Mixing elements
    • B01J2208/00831—Stationary elements
    • B01J2208/0084—Stationary elements inside the bed, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00938—Flow distribution elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2451—Geometry of the reactor
    • B01J2219/2454—Plates arranged concentrically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2451—Geometry of the reactor
    • B01J2219/2456—Geometry of the plates
    • B01J2219/2459—Corrugated plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2461—Heat exchange aspects
    • B01J2219/2465—Two reactions in indirect heat exchange with each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2469—Feeding means
    • B01J2219/247—Feeding means for the reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2491—Other constructional details
    • B01J2219/2492—Assembling means
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/06—Integration with other chemical processes
    • C01B2203/066—Integration with other chemical processes with fuel cells
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C01B2203/0822—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel the fuel containing hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C01B2203/0827—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel at least part of the fuel being a recycle stream
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Definitions

  • the invention relates to a catalyst unit for a high-temperature fuel cell system with a reforming catalyst for treating a fuel for the fuel cell and an oxidation catalyst for the
  • the catalyst unit described above can be used, for example, in a compact power unit (APU) of a motor vehicle, where it serves to provide electrical and thermal energy.
  • APU compact power unit
  • High-temperature fuel cell system in which a cylindrical reforming catalyst is incorporated in an oxidation catalyst.
  • a cylindrical reforming catalyst is arranged in a combustion chamber for a flame burner, which is annularly surrounded by an oxidation catalyst.
  • the unused fuel components of the anode exhaust gas are fed together with the cathode exhaust gas into the combustion chamber and post-treated in the oxidation catalyst.
  • the gaseous products after the catalytic conversion reach via edge-side openings of the oxidation catalyst in a
  • the gases to be treated initially flow through a cylindrical, inner catalyst, are then deflected and passed in countercurrent to an annular, outer catalyst region. The two areas are separated by a cylindrical partition. Both the inner catalyst and the outer catalyst have a metallic carrier (mash) layer for the catalytic substance.
  • the object of the invention is to develop a catalyst unit for a high-temperature fuel cell system of the type mentioned in such a way that a compact unit, especially for use in an APU is given, with improvements in heat transfer and in the maintenance and care of the unit to be achieved ,
  • the catalyst tube receiving reforming catalyst metal tube are separated, wherein the metal tube has a sleeve which forms a housing for the reforming catalyst, and an inner tube which forms the inner wall of the annular oxidation catalyst.
  • the reforming catalyst is exchangeable used in the annular oxidation catalyst.
  • both catalysts are thus fixed in independent housings.
  • the reforming catalyst can thus be easily replaced if necessary.
  • the oxidation catalyst and / or the reforming catalyst have a metallic catalyst carrier, wherein the sleeve is in thermal contact with the catalyst carrier of the reforming catalyst and the inner tube with the catalyst carrier of the oxidation catalyst.
  • catalyst support of the oxidation catalyst and the catalyst support of the reforming catalyst are connected by welding to the respectively adjacent parts of the metal pipe.
  • Oxidation catalyst can account for a conventional sealing mat, the
  • a particular advantage of this embodiment is that due to the improved thermal conductivity of the temperature profile of the
  • Catalyst unit (axial and radial) can be homogenized.
  • the improved heat dissipation in particular hot zones (hot spots) can be prevented in the two catalysts.
  • the gas distributor housing (reformer manifold) arranged at the beginning of the reforming catalyst can have an annular space into which the supply line for the fuel-gas mixture to be treated opens, starting radially from the annular space
  • Access openings are arranged from the annular space to the inlet surface of the reforming catalyst.
  • the axial distance a of the tangential inlet of the supply line for the fuel-gas mixture from the inlet surface of the reforming catalyst to the diameter D of the reforming catalyst can have a ratio a: D in the range from 0.2 to 1, preferably from 0 , 3 to 0.6, resulting in a desired ring flow
  • the tangential inlet may open into a cylindrical or frusto-conical region of the gas distributor housing.
  • FIG. 1 shows a catalyst unit according to the invention for a high-temperature fuel cell system in a three-dimensional, partially cutaway representation
  • Fig. 2 is a schematic representation of the principle of operation and the
  • FIG. 3 is a sectional view of the catalyst unit of FIG. 1,
  • Fig. 4 shows a variant of the catalyst unit of FIG. 1 in a three-dimensional representation.
  • Fig. 5 shows a first embodiment of a gas distributor housing
  • FIG. 6 shows the gas distributor housing according to FIG. 5 in an axial plan view
  • FIG. 7 shows a second embodiment of a gas distributor housing
  • FIG. 1 shows a catalyst unit 10 according to the invention for a high-temperature fuel cell system (not further illustrated here) with a cylindrical reforming catalyst 11 and a reforming catalyst annular
  • the reforming catalyst 11 is used for the preparation of the fuel for the fuel cell BZ (see Fig. 2), which is supplied with an oxidizing agent via the supply line 23 and with a
  • frustoconical gas distributor housing or Reformermanifold 24 is distributed as homogeneously as possible over the inlet surface of the reforming catalyst 11.
  • the oxidation catalyst 12 is used for exhaust aftertreatment of a starter burner and the fuel cell system.
  • Reforming catalyst 11 forms, as well as an outer tube 15, which forms the inner wall of the annular oxidation catalyst 12.
  • the reforming catalyst 11 can thus be used interchangeably in the annular oxidation catalyst 12.
  • the oxidation catalyst 12 and / or the reforming catalyst 11 preferably have a metallic catalyst carrier 16, 17, wherein the sleeve 14 of the metal tube 13 is in thermal contact with the catalyst carrier 16 of the reforming catalyst 11 and the outer tube 15 with the catalyst carrier 17 of the oxidation catalyst 12.
  • the catalyst support 17 of the oxidation catalyst 12 and the catalyst support 16 of the reforming catalyst 11 consists of a metallic
  • Wire mesh or a metallic lamellar structure which are connected by welding to the respective adjacent parts 14, 15 of the metal tube 13.
  • the sleeve 14 of the reforming catalyst 11 can be interchangeable inserted into the inner tube 15 and the inner wall of the annular oxidation catalyst 12 by means of a clearance fit, for example in the range of 0.2 mm to 1.5 mm. It is in the end of the sleeve 14 on the part of the
  • a ring seal 25 for example, a swelling mat
  • a swelling mat for example, a swelling mat
  • FIG. 2 shows, in a schematic overview, the arrangement of the catalyst unit 10 according to the invention, including the cylindrical reforming catalyst 11 and the annular oxidation catalyst 12 in combination with a
  • the fuel F is supplied during the starting cycle by means of a fuel pump 35 to a starter burner 26, the exhaust gases in the annular
  • Oxidation catalyst 12 are guided and arranged centrally
  • Fuel pump 36 of the evaporation unit 37 is supplied and introduced into the anode exhaust gas of the recirculation line 27, and together with the required oxidant, for example, air L, by means of compressor 28 the
  • the compressor 29 serves to supply the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.g., air L) to the oxidizing agent (e.
  • Oxidation catalyst 12 is subjected to waste heat. In the starting phase will also the starter burner 26 supplied via the compressor 29 with the required air.
  • Fig. 3 shows a variant of the catalyst unit 10 according to the invention in an enlarged sectional view.
  • Oxidation catalyst 12 and the reforming catalyst 11 separates, consists essentially of the sleeve 14, which forms a housing for the reforming catalyst 11, and from the inner tube 15, which is the inner wall of the annular
  • Oxidation catalyst 12 forms.
  • the circumferential sealing flange 18 here has a ring seal 25 to the end face of the inner tube 15.
  • both the oxidation catalytic converter 12 and the reforming catalytic converter 11 have a metallic catalyst carrier 16, 17, the gas paths of the two catalytic converters 11 being separated by a metal tube 13 accommodating the reforming catalyst 11 are, which is in thermal contact with the catalyst support 17 of the oxidation catalyst 12 and the catalyst support 16 of the reforming catalyst 11, for example by welding.
  • FIGS. 5 to 7 show two alternative embodiments for the gas distributor housing 24, which is arranged on the input side of the reforming catalytic converter 11. It serves to process the fuel-gas mixture over the whole
  • Gas distributor housing 24 an annular space 32, in which the supply line 23 for the fuel-gas mixture, for example, opens radially, starting from the annular space 32 radial access openings 33 in the form of a perforated ring from
  • Annular space 32 are arranged to the inlet surface 30 of the reforming catalyst 11, so that the reforming catalyst 11 is applied as uniformly as possible with the mixture of anode exhaust gas, vaporized fuel and oxidant.
  • the Reformermanifold of FIG. 5 and Fig. 6 is characterized by a compact design with low axial height.
  • a measuring device for example a temperature sensor, can be introduced into the annular space 32 (see FIG. 6).
  • the oxidation catalyst 12 has a tubular outer wall 21 with exhaust outlet openings 22. In this case, the exhaust gas outlet openings 22 are located in an area protruding beyond the catalyst carrier 17 (see also FIGS. 1 and 4).
  • the gas distributor housing 24 may be integrally formed with the inner wall 15 of the annular oxidation catalyst 12 or connected thereto by welding.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

L'invention concerne un ensemble catalyseur (10) pour un système de cellules à combustible à haute température comprenant un catalyseur de reformage (11) pour produire un carburant pour la cellule à combustible et un catalyseur d'oxydation (12) pour le post-traitement des gaz d'échappement, le catalyseur d'oxydation (12) étant disposé en forme d'anneau autour du catalyseur de reformage (11) conçu cylindrique. Selon l'invention, les chemins pour les gaz du catalyseur d'oxydation (12) et du catalyseur de reformage (11) sont séparés par un tube métallique (13) hébergeant le catalyseur de reformage (11), le tube métallique (13) présentant une gaine (14) qui forme un logement pour le catalyseur de reformage (11), ainsi qu'un tube intérieur (15) qui forme la paroi intérieure du catalyseur d'oxydation (12) en forme d'anneau.
PCT/EP2014/000286 2013-02-04 2014-02-04 Ensemble catalyseur pour un système de cellules à combustible à haute température Ceased WO2014117950A1 (fr)

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EP4485590A1 (fr) * 2023-06-29 2025-01-01 Robert Bosch GmbH Dispositif électrochimique, en particulier dispositif de pile à combustible

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US20040187386A1 (en) * 2003-03-26 2004-09-30 Wangerow James R. Simplified three-stage fuel processor
WO2006104787A2 (fr) * 2005-03-29 2006-10-05 Texaco Development Corporation Procede et dispositif destines a un systeme de production d'hydrogene a integration thermique
AT502131A2 (de) * 2006-10-03 2007-01-15 Avl List Gmbh Energieerzeugungseinheit mit zumindest einer hochtemperaturbrennstoffzelle
EP1987876A1 (fr) * 2007-04-24 2008-11-05 Samsung SDI Co., Ltd. Appareil de reformage de carburant, procédé de commande dudit appareil et système de pile à combustible doté dudit appareil
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US11220948B1 (en) 2020-07-02 2022-01-11 David A Endrigo Emissions reduction systems and methods
US11519318B2 (en) 2020-07-02 2022-12-06 David A. Endrigo Emissions reduction systems and methods
EP4485590A1 (fr) * 2023-06-29 2025-01-01 Robert Bosch GmbH Dispositif électrochimique, en particulier dispositif de pile à combustible

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AT513932B1 (de) 2016-11-15
WO2014117950A8 (fr) 2014-10-23
DE112014000664A5 (de) 2015-10-15
AT513932A1 (de) 2014-08-15

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