WO2010121722A1 - Dispositif pour mélanger des flux de gaz - Google Patents

Dispositif pour mélanger des flux de gaz Download PDF

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Publication number
WO2010121722A1
WO2010121722A1 PCT/EP2010/002252 EP2010002252W WO2010121722A1 WO 2010121722 A1 WO2010121722 A1 WO 2010121722A1 EP 2010002252 W EP2010002252 W EP 2010002252W WO 2010121722 A1 WO2010121722 A1 WO 2010121722A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixing
premixing chamber
natural gas
inlet line
reformer
Prior art date
Application number
PCT/EP2010/002252
Other languages
German (de)
English (en)
Inventor
Gordon Folkerts
Matthias Kraus
Marc Schellen
Stefan Schweitzer-De-Bortoli
Original Assignee
Vaillant 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
Priority claimed from AT0132109A external-priority patent/AT508743A1/de
Application filed by Vaillant Gmbh filed Critical Vaillant Gmbh
Priority to EP10714192A priority Critical patent/EP2421638A1/fr
Publication of WO2010121722A1 publication Critical patent/WO2010121722A1/fr

Links

Classifications

    • 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
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B01J4/004—Sparger-type elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • 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
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B01J4/002—Nozzle-type elements
    • 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
    • C01B3/386—Catalytic partial combustion
    • 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
    • B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
    • B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
    • 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
    • C01B2203/025—Processes for making hydrogen or synthesis gas containing a partial oxidation step
    • C01B2203/0261—Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a catalytic partial oxidation step [CPO]
    • 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
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1005—Arrangement or shape of catalyst
    • C01B2203/1011—Packed bed of catalytic structures, e.g. particles, packing elements
    • 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
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1005—Arrangement or shape of catalyst
    • C01B2203/1023—Catalysts in the form of a monolith or honeycomb
    • 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
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1005—Arrangement or shape of catalyst
    • C01B2203/1029—Catalysts in the form of a foam
    • 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
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1276—Mixing of different feed components
    • C01B2203/1282—Mixing of different feed components using static mixers
    • 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
    • C01B2203/16—Controlling the process
    • C01B2203/1604—Starting up the process

Definitions

  • the invention relates to a device for mixing gas streams for the production of hydrogen, in particular in the reformer of a fuel cell system.
  • reformers are used to obtain the required hydrogen from hydrocarbon fuels. All substances required by the reformer for the course of the reaction, such as e.g. Air, natural gas or water are preferably supplied to the reformer in the gaseous state. In this case, a good mixing in terms of speed and concentration of the gas streams must be done to ensure an optimally running reforming process. Burners or afterburner facilities are available to provide the optimum reaction temperature.
  • the object of the present invention is to provide a device for mixing gas streams (eg air and natural gas) of a fuel cell system which ensures optimal mixing of these gas streams.
  • the mixing device should be made compact and small, and have low pressure losses.
  • This object is achieved by the device according to the invention for mixing at least two gaseous media, preferably air and natural gas in a fuel cell system in that the one medium via a first inlet line and the other medium via a further inlet line with a section which is in a premixing chamber of a Reformers opens, be merged and the inlet pipes are arranged perpendicular to each other, wherein the opening in the premixing inlet pipe along its portion of a casing with holes, mounted on the section facing side, axially surrounded.
  • gas streams eg air and natural gas
  • Fig. 1 shows a cross section of the device according to the invention
  • Fig. 2 is a schematic representation of a vacuum chamber of a
  • FIG. 1 shows the mixing device according to the invention, in which a volumetric flow of air and natural gas passes via inlet regions 1 and 2 into a premixing chamber 5 of a reformer 8.
  • the inlet regions 1, 2 are preferably formed as a tube.
  • the air in the inlet pipe 1 is supplied perpendicular to the natural gas inlet pipe 2 and then redirected to an outer pipe 3.
  • the natural gas inlet pipe 2 has, before the mouth into the premixing chamber 5, a section 4 which is axially enclosed as an inner pipe 4 by a casing 3.
  • the jacket 3 is preferably formed as a tube and forms together with the section 4 of the natural gas inlet tube 2 a double tube consisting of inner tube 4 and outer tube.
  • the natural gas and air stream is passed immediately before entering the premixing chamber 5 via an extension jump 6 in the premixing chamber 5, in which a further mixing takes place.
  • an extension jump 6 in the premixing chamber 5 in which a further mixing takes place.
  • Possible shapes for the catalyst structure 7 are ball, pellets, cylinders, honeycombs, spirals, granules or rings.
  • the catalyst may be applied to the surface of a monolithic carrier material, e.g. As on ceramics, metals, honeycomb, foams or corrugated laminates.
  • FIG. 2 shows schematically a vacuum chamber 14, preferably made of metal, which is inter alia a reformer 8, a fuel cell stack 10, an afterburner 11, a starting burner 12 and a heat exchanger 13 includes.
  • the air supply to the vacuum chamber 14 is made via a connection to the airway of the air exhaust accessory of a fuel cell micro-cogeneration apparatus.
  • the mixing device according to the invention is part of the reformer 8, which is supplied simultaneously with desulfurized natural gas and preheated air, wherein the total amount and the mixing ratio for process optimization can be varied. You can do this variable conveyors such as pumps and blowers or valves are provided.
  • the process quality is determined directly by means of suitable gas sensors and / or indirectly eg via mass or volume flows and process-relevant temperatures.
  • the required preheating of the air takes place depending on the operating state by the energy of the starting burner or afterburner exhaust gas in a heat exchanger 13, so that the reforming process can proceed optimally.
  • the resulting reformate has a temperature which is suitable for supplying the reformate to the fuel cell stack 10 without further relevant energy supply or removal.
  • the device for mixing gas streams such as air and natural gas ensures optimal mixing of the gas streams.
  • the design of the mixing device allows a compact and small design. A uniform velocity distribution before entry into the catalyst honeycomb structure of the premixing chamber with the lowest possible pressure loss is also ensured.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Fuel Cell (AREA)

Abstract

La présente invention concerne un dispositif pour mélanger au moins deux milieux gazeux, de préférence de l'air et du gaz naturel, dans un système de piles à combustible, dans lequel le premier milieu et l'autre milieu se rejoignent respectivement au moyen d'une première conduite d'admission et d'une autre conduite d'admission avec un segment débouchant sur une chambre de prémélange d'un reformeur, les conduites d'admission étant placées perpendiculairement l'une à l'autre. La conduite d'admission débouchant sur la chambre de prémélange est entourée axialement, le long de sa section, d'une gaine comportant des trous ménagés sur la face de la gaine qui est orientée vers la section.
PCT/EP2010/002252 2009-04-22 2010-04-13 Dispositif pour mélanger des flux de gaz WO2010121722A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10714192A EP2421638A1 (fr) 2009-04-22 2010-04-13 Dispositif pour mélanger des flux de gaz

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102009018186 2009-04-22
DE102009018186.5 2009-04-22
ATA1321/2009 2009-08-21
AT0132109A AT508743A1 (de) 2009-08-21 2009-08-21 Vorrichtung zum mischen von gasströmen

Publications (1)

Publication Number Publication Date
WO2010121722A1 true WO2010121722A1 (fr) 2010-10-28

Family

ID=42341563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/002252 WO2010121722A1 (fr) 2009-04-22 2010-04-13 Dispositif pour mélanger des flux de gaz

Country Status (2)

Country Link
EP (1) EP2421638A1 (fr)
WO (1) WO2010121722A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111671444A (zh) * 2014-08-07 2020-09-18 贝克顿·迪金森公司 具有膜元件的一体式安全管密封件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055425A1 (de) * 2004-11-17 2006-05-24 Forschungszentrum Jülich GmbH Mischkammer für einen Reformer sowie Verfahren zum Betreiben derselben
US7255840B2 (en) * 2003-06-26 2007-08-14 Praxair Technology, Inc. Autothermal reactor and method for production of synthesis gas
US20070212294A1 (en) * 2006-03-10 2007-09-13 Korea Advanced Institute Of Science And Technology Fuel reformer comprising spraying device, sprayer used in the fuel reformer and fuel reforming method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7255840B2 (en) * 2003-06-26 2007-08-14 Praxair Technology, Inc. Autothermal reactor and method for production of synthesis gas
DE102004055425A1 (de) * 2004-11-17 2006-05-24 Forschungszentrum Jülich GmbH Mischkammer für einen Reformer sowie Verfahren zum Betreiben derselben
US20070212294A1 (en) * 2006-03-10 2007-09-13 Korea Advanced Institute Of Science And Technology Fuel reformer comprising spraying device, sprayer used in the fuel reformer and fuel reforming method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111671444A (zh) * 2014-08-07 2020-09-18 贝克顿·迪金森公司 具有膜元件的一体式安全管密封件
CN111671444B (zh) * 2014-08-07 2024-04-16 贝克顿·迪金森公司 具有膜元件的一体式安全管密封件

Also Published As

Publication number Publication date
EP2421638A1 (fr) 2012-02-29

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