FR2898816A1 - Installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns working in alternative production/regeneration cycles and controlling units - Google Patents

Installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns working in alternative production/regeneration cycles and controlling units Download PDF

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Publication number
FR2898816A1
FR2898816A1 FR0651017A FR0651017A FR2898816A1 FR 2898816 A1 FR2898816 A1 FR 2898816A1 FR 0651017 A FR0651017 A FR 0651017A FR 0651017 A FR0651017 A FR 0651017A FR 2898816 A1 FR2898816 A1 FR 2898816A1
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FR
France
Prior art keywords
installation
fuel
hydrogen
fuel cell
means
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.)
Withdrawn
Application number
FR0651017A
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French (fr)
Inventor
Caroline Drouart
Olivier Cadet
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Air Liquide SA
Original Assignee
Air Liquide SA
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 Air Liquide SA filed Critical Air Liquide SA
Priority to FR0651017A priority Critical patent/FR2898816A1/en
Publication of FR2898816A1 publication Critical patent/FR2898816A1/en
Application status is Withdrawn legal-status Critical

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0662Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047Pressure swing adsorption
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00Structural combinations of different types of electrochemical generators
    • H01M16/003Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
    • H01M16/006Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers of fuel cells with rechargeable batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04208Cartridges, cryogenic media or cryogenic reservoirs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2256/00Main component in the product gas stream after treatment
    • B01D2256/16Hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/50Carbon oxides
    • B01D2257/502Carbon monoxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0208Other waste gases from fuel cells
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40007Controlling pressure or temperature swing adsorption
    • B01D2259/40009Controlling pressure or temperature swing adsorption using sensors or gas analysers

Abstract

The installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns (3) working in alternative production/regeneration cycles and controlling units (2, 4) that are provided by means of electric supply. The electric supply has a proton exchange membrane fuel cell (5) intended to fed in air and carburize from the fuel source. The fuel cell is functioning with a fuel made up of hydrogen gas or gas mixture rich in hydrogen. The installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns (3) working in alternative production/regeneration cycles and controlling units (2, 4) that are provided by means of electric supply. The electric supply has a proton exchange membrane fuel cell (5) intended to fed in air and carburize from the fuel source. The fuel cell is functioning with a fuel made up of hydrogen gas or gas mixture rich in hydrogen. A fraction of the gas mixture rich in hydrogen produced by the installation directly feeds the fuel entry of the pile so that the installation constitutes a source of fuel for the pile. The gas purification mixture is produced by the installation located on upstream entry by carburizing fuel cell such as means of chemisorption. The fuel source is made up of bottles of pressurized hydrogen gas to connect at the fuel entry of the pile. The controlling units have a cabinet such as sensors and valves, and a body of supervision such as computer/analogue. A box of input/output is located at a level of the circuit of the installation and electrically connected to the cabinet. The fuel cell is laid out near the box of input/output.

Description

La présente invention concerne une installation de production d'un mélange The present invention relates to a production facility of a mixture

gazeux riche en hydrogène par séparation par adsorption. hydrogen-rich gas by adsorptive separation. L'invention concerne plus particulièrement une installation de production d'un mélange gazeux enrichi en hydrogène par séparation par adsorption au moyen d'un circuit comprenant une pluralité de bouteilles ou colonnes d'adsorbants fonctionnant selon des cycles alternés de production/régénération, des organes de contrôle et de commande de l'installation destinés à être alimentés électriquement par des moyens d'alimentation en énergie électrique. The invention relates more particularly to an installation for producing a gas mixture enriched in hydrogen by adsorptive separation using a circuit comprising a plurality of bottles or adsorbent columns operated according to alternate cycles of production / regeneration, organs monitoring and control of the installation to be supplied electrically by the supply means into electrical energy. Ce type d'installation est appelée également PSA ( Pressure Swing Adsorption c'est-à-dire Adsorption Modulée en Pression). This type of installation is also known as PSA (Pressure Swing Adsorption is to say Adsorption Modulated Pressure). De telles installations sont destinées à être montées dans des environnements ou pays différents, ce qui peut poser des problèmes pour assurer l'alimentation électrique du matériel de contrôle de l'installation. Such installations are intended for installation in environments or different countries, which can pose problems to ensure the power supply to the plant control equipment. En effet, le matériel de contrôle de l'installation comprend typiquement des armoires et boîtiers alimentés électriquement qui sont reliés aux différents organes électriques du circuit tels que des capteurs de pression, des électro-vannnes... Pour assurer cette alimentation électrique, il est connu d'utiliser des transformateurs et l'alimentation électrique (réseau par exemple) disponible sur le site de l'installation. Indeed, the installation control material typically comprises electrically powered cabinets and housings which are connected to different electrical components of the circuit such as pressure sensors, electro-vannnes ... To provide this power, it is known to use transformers and power supply (eg network) available on the installation site. Cependant, cette solution nécessite de prévoir une connexion électrique spécifique pour l'installation. However, this solution requires providing a specific electrical connection for installation. De plus, le transformateur électrique doit être changé en fonction des différentes alimentations électriques disponibles d'un site à l'autre. In addition, the power adapter must be changed according to different power supplies available from one site to another. Enfin, cette solution connue est tributaire de la qualité du réseau électrique du site et notamment des coupures de courant susceptibles de se produire. Finally, this known solution is dependent on the power quality of the site, including power outages may occur.

Un but de la présente invention est de pallier tout ou partie des inconvénients de l'art antérieur relevés ci-dessus. An object of the present invention to overcome all or part of the disadvantages of the prior art mentioned above. A cette fin, l'installation selon l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisé en ce que les moyens d'alimentation électrique comprennent une pile à combustible destinée à être alimentée en air et en carburant issu d'au moins une source de carburant. To this end the installation according to the invention, otherwise according to the generic definition given in the preamble above, is essentially characterized in that the power supply means comprises a fuel cell to be supplied air and fuel from at least one fuel source. Par ailleurs, l'invention peut comporter l'une ou plusieurs des caractéristiques suivantes : - la pile à combustible est du type fonctionnant avec un carburant constitué d'hydrogène gazeux ou un mélange gazeux riche en hydrogène, et en ce qu'une fraction du mélange gazeux riche en hydrogène produit par l'installation alimente directement l'entrée de carburant de la pile de façon que l'installation constitue une source de carburant pour la pile, -l'installation comprend des moyens de purification du mélange gazeux produit par l'installation situés en amont de l'entrée en carburant de la pile à combustible, tels que des moyens de chimisorption, - l'installation comprend une source de carburant constituée d'une pluralité de bouteilles d'hydrogène gazeux pressurisé aptes à être reliées fluidiquement à l'entrée de carburant de la pile, - les moyens de contrôle et de commande de l'installation comprennent une armoire de contrôle et de commande d'organes du circuit te Furthermore, the invention may comprise one or more of the following features: - the fuel cell is of the type operating with a fuel consisting of hydrogen gas or a gas mixture rich in hydrogen and in that a fraction of the hydrogen-rich gas mixture produced by the installation directly supplies the fuel inlet of the stack so that the facility is a source of fuel for the cell, -installation includes gas mixture purification means produced by installation located upstream of the input fuel of the fuel cell, such as means of chemisorption, - the installation comprises a fuel source comprised of a plurality of pressurized hydrogen gas cylinders adapted to be connected fluidically to the fuel inlet of the stack, - the means of monitoring and control of the installation comprises a control cabinet and control circuit of the bodies you ls que des capteurs et vannes, - les moyens de contrôle et de commande de l'installation comprennent un coffret d'entrées/sorties, ledit coffret d'entrées/sorties étant situé au niveau du circuit de l'installation et étant relié électriquement à l'armoire de contrôle et de commande, - les moyens de contrôle et de commande de l'installation comprennent un organe de supervision tel qu'un ordinateur ou analogue, - la pile à combustible est disposée dans ou a proximité du coffret d'entrées/sorties. ls as sensors and valves, - the means of monitoring and control of the installation comprises a box input / output, said input / output box is located at the installation circuit and being electrically connected to cabinet monitoring and control, - means of monitoring and control of the installation comprises a monitoring device such as a computer or the like, - the fuel cell is disposed in or near the cabinet entries /exits. - l'installation comporte un dispositif d'alimentation électrique sans interruption tel qu'au moins une batterie reliée électriquement aux moyens de contrôle et de commande de l'installation et/ou à la pile à combustible, pour assurer des phases de démarrages ou des transitoires de charge, - la pile à combustible est du type à membrane échangeuse de protons (PEMFC). - the installation comprises a power supply device without interruption such that at least one battery electrically connected to the control and command means of the plant and / or to the fuel cell, to provide phase starts or load transients, - the fuel cell is of the proton exchange membrane (PEM). D'autres particularités et avantages apparaîtront à la lecture de la description ci-après, faite en référence à la figure unique qui représente de façon schématique et partielle un exemple d'installation selon l'invention. Other features and advantages will appear on reading the following description, made with reference to the single figure which shows diagrammatically and partially an example of plant according to the invention. L'installation 1 (PSA) représentée à titre d'exemple comprend, dans un même conteneur 6, un circuit de production d'un mélange gazeux riche en hydrogène par séparation par adsorption. The installation 1 (PSA) shown by way of example comprises, in a single container 6, a circuit for producing a hydrogen-rich gas mixture by adsorptive separation. Classiquement le circuit comprend une pluralité de colonnes 3 d'adsorbants (cinq dans l'exemple représenté) fonctionnant selon des cycles alternés de production/régénération. Conventionally the circuit comprises a plurality of columns 3 adsorbent (five in the example shown) operating according to alternate cycles of production / regeneration. Le circuit comporte par ailleurs des organes non décrits en détail par soucis de concision, notamment des capteurs et électrovannes. The circuit also includes non members described in detail for reasons of conciseness, including sensors and solenoids. Le circuit comprend également des organes 2, 4 de contrôle et de commande de l'installation 1 destinés à être alimentés électriquement. The circuit also includes two bodies, 4 control and control of the installation 1 to be electrically powered. Les organes 2, 4 de contrôle et de commande de l'installation comprennent par exemple des armoires et/ou boîtiers électriques tels qu'un coffret 2 comprenant un automate pourvu d'un système d'Interface Homme Machine, un coffret (4) d'entrées/sorties disposé au sein du circuit et relié électriquement à l'automate. Bodies 2, 4 control and control of the system include, for example cabinets and / or electrical box such as a box 2 with a controller provided with a Human Machine Interface system, a cabinet (4) / O circuit disposed within and electrically connected to the PLC. Selon l'invention, les moyens d'alimentation électrique des organes 2, 4 de contrôle et de commande de l'installation 1 et/ou d'autres organes électriques de l'installation comprennent au moins une pile à combustible 5 alimentée en air et en carburant, par exemple de l'hydrogène gazeux. According to the invention, the power supply means of the bodies 2, 4 control and control of the plant 1 and / or other electrical members of the installation comprise at least one 5 fuel cell supplied with air and fuel, for example hydrogen gas. De cette façon l'installation 1 peut constituer une entité autonome et indépendante en ce qui concerne son alimentation électrique. This way the plant 1 may be an autonomous and independent entity regarding its power supply. De préférence, la pile à combustible 5 est du type fonctionnant avec un carburant constitué d'hydrogène gazeux ou un mélange gazeux riche en 20 hydrogène. Preferably, the fuel cell 5 is of the type operating with a fuel consisting of hydrogen gas or a gas mixture rich in hydrogen 20. Avantageusement, une fraction du mélange gazeux riche en hydrogène (H2) produit par l'installation 1 peut alimenter directement l'entrée de carburant de la pile 5 de façon que l'installation forme une source de carburant pour la pile 5. Avant son entrée dans la pile 5, le gaz riche en hydrogène peut subir une 25 purification, par exemple par chimisorption pour retirer par exemple tout ou partie du monoxyde de carbone présent dans le gaz produit. Advantageously, a fraction of the gas mixture rich in hydrogen (H2) produced by the plant 1 can directly supply the fuel inlet of the stack 5 so that the installation forms a fuel source for the stack 5. Before entering in the stack 5, the hydrogen-rich gas 25 may undergo purification, for example by chemisorption to remove for example all or part of the carbon monoxide present in the product gas. En variante ou en combinaison, la pile 5 à combustible peut être alimentée par une source de carburant constituée d'une pluralité de bouteilles d'hydrogène gazeux pressurisé. Alternatively or in combination, the fuel cell 5 may be powered by a fuel source comprised of a plurality of pressurized hydrogen gas bottles. 30 Typiquement la consommation électrique d'une telle installation peut être comprise entre 1 et 2 kW par exemple. 30 Typically, the power consumption of such an installation may be between 1 and 2 kW per example. Une pile à combustible ayant une puissance de 2,5 kW peut ainsi être utilisée avec une marge de puissance pour d'autres équipements électriques par exemple. A fuel cell having a power of 2.5 kilowatts and can be used with a power margin for other electrical equipment, for example.

Par ailleurs, l'installation peut comprendre un dispositif d'alimentation électrique sans interruption tel qu'au moins une batterie reliée électriquement aux éléments 2, 4 de contrôle et de commande de l'installation 1 et/ou à la pile à combustible 5, pour assurer par exemple des phases de démarrages ou des transitoires de charge. Furthermore, the installation may comprise a power supply device without interruption such that at least one battery electrically connected to the elements 2, 4 control and control of the plant 1 and / or the fuel cell 5, to ensure, for example, phases of start-up or load transients. De préférence, la batterie est dimensionnée pour permettre une autonomie d'alimentation de l'installation 1 de l'ordre de 10 minutes par exemple. Preferably, the battery is sized to allow a power autonomy of the plant 1 of the order of 10 minutes for example.

Claims (10)

REVENDICATIONS
1. Installation de production d'un mélange gazeux enrichi en hydrogène et d'au moins un effluent gazeux, à partir d'un flux gazeux comprenant de l'hydrogène, par emploi d'une unité de séparation par adsorption au moyen d'un circuit comprenant une pluralité de bouteilles ou colonnes (3) d'adsorbants fonctionnant selon des cycles alternés de production/régénération, des organes (2, 4) de contrôle et de commande de l'installation (1) destinés à être alimentés électriquement par des moyens d'alimentation électrique, caractérisé en ce que les moyens d'alimentation électrique comprennent une pile à combustible (5) destinée à être alimentée en air et en carburant issu d'au moins une source de carburant. 1. Installation for producing a gas mixture enriched in hydrogen and at least one gaseous effluent from a gas stream comprising hydrogen, by use of an adsorptive separation unit by means of a circuit comprising a plurality of cylinders or columns (3) of adsorbent operating in accordance with alternate cycles of production / regeneration, bodies (2, 4) for monitoring and control of the installation (1) to be powered electrically by power supply means, characterized in that the power supply means comprises a fuel cell (5) to be supplied with air and fuel from at least one fuel source.
2. Installation selon la revendication 1, caractérisée en ce que la pile à combustible (5) est du type fonctionnant avec un carburant constitué d'hydrogène gazeux ou un mélange gazeux riche en hydrogène, et en ce qu'une fraction du mélange gazeux riche en hydrogène produit par l'installation (1) alimente directement l'entrée de carburant de la pile (5) de façon que l'installation constitue une source de carburant pour la pile (5). 2. Installation according to claim 1, characterized in that the fuel cell (5) is of the type operating with a fuel comprised of hydrogen gas or a gas mixture rich in hydrogen and in that a fraction rich gas mixture hydrogen produced by the plant (1) directly feeds the input of the fuel cell (5) so that the facility is a source of fuel for the stack (5).
3. Installation selon la revendication 2, caractérisée en ce qu'elle comprend des moyens de purification du mélange gazeux produit par l'installation situés en amont de l'entrée en carburant de la pile à combustible (5), tels que des moyens de chimisorption. 3. Installation according to claim 2, characterized in that it comprises means for purifying the gas mixture produced by the installation located upstream of the input fuel of the fuel cell (5), such as means of chemisorption.
4. Installation selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'elle comprend une source de carburant constituée d'une pluralité de bouteilles d'hydrogène gazeux pressurisé aptes à être reliées fluidiquement à l'entrée de carburant de la pile (5). 4. Installation according to any one of claims 1 to 3, characterized in that it comprises a fuel source comprised of a plurality of pressurized hydrogen gas cylinders adapted to be connected fluidically to the fuel inlet of the battery (5).
5. Installation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les moyens (2, 4) de contrôle et de commande de l'installation (1) comprennent une armoire (2) de contrôle et de commande d'organes du circuit tels que des capteurs et vannes. 5. Installation according to any one of claims 1 to 4, characterized in that the means (2, 4) for monitoring and control of the installation (1) comprises a cabinet (2) for monitoring and control of organs of the circuit such as sensors and valves.
6. Installation selon la revendication 5, caractérisée en ce que les moyens (2, 4) de contrôle et de commande de l'installation (1) comprennent un coffret (4) d'entrées/sorties, ledit coffret (4) d'entrées/sorties étant situé auniveau du circuit de l'installation (1) et étant relié électriquement à l'armoire (2) de contrôle et de commande. 6. Installation according to claim 5, characterized in that the means (2, 4) for monitoring and control of the installation (1) comprises a box (4) I / O, said cabinet (4) of inputs / outputs being located auniveau of installing circuit (1) and being electrically connected to the cabinet (2) for monitoring and control.
7. Installation selon la revendication 5 ou 6, caractérisée en ce que les moyens (2, 4) de contrôle et de commande de l'installation (1) comprennent un organe de supervision tel qu'un ordinateur ou analogue. 7. Installation according to claim 5 or 6, characterized in that the means (2, 4) for monitoring and control of the installation (1) comprises a supervision member such as a computer or the like.
8. Installation selon l'une quelconque des revendications 6 à 7, caractérisée en ce la pile à combustible (5) est disposée dans ou a proximité du coffret (4) d'entrées/sorties. 8. Installation according to any one of claims 6-7, characterized in that the fuel cell (5) is arranged in or near the enclosure (4) I / O.
9. Installation selon l'une quelconque des revendications 1 à 8, caractérisée en ce qu'elle comporte un dispositif d'alimentation électrique sans interruption tel qu'au moins une batterie reliée électriquement aux moyens (2, 4) de contrôle et de commande de l'installation (1) et/ou à la pile à combustible, pour assurer des phases de démarrages ou des transitoires de charge. 9. Installation according to any one of claims 1 to 8, characterized in that it comprises a power supply device without interruption such that at least one battery electrically connected to the means (2, 4) for monitoring and control installation (1) and / or the fuel cell to ensure the phases of start-up or load transients.
10. Installation selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la pile à combustible est du type à membrane échangeuse de protons (PEMFC). 10. Installation according to any one of claims 1 to 9, characterized in that the fuel cell is of the proton exchange membrane (PEM).
FR0651017A 2006-03-24 2006-03-24 Installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns working in alternative production/regeneration cycles and controlling units Withdrawn FR2898816A1 (en)

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FR0651017A FR2898816A1 (en) 2006-03-24 2006-03-24 Installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns working in alternative production/regeneration cycles and controlling units

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FR0651017A FR2898816A1 (en) 2006-03-24 2006-03-24 Installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns working in alternative production/regeneration cycles and controlling units

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927729A1 (en) * 1989-08-23 1991-02-28 Uhde Gmbh Aiding ammonia or methanol prodn. by steam reforming - with energy from fuel cell using oxygen and hydrogen from adsorption system
US20020127442A1 (en) * 2000-12-08 2002-09-12 Connor Denis J. Methods and apparatuses for gas separation by pressure swing adsorption with partial gas product feed to fuel cell power source
US20050098033A1 (en) * 2003-11-12 2005-05-12 Kiran Mallavarapu Control of a hydrogen purifying pressure swing adsorption unit in fuel processor module for hydrogen generation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927729A1 (en) * 1989-08-23 1991-02-28 Uhde Gmbh Aiding ammonia or methanol prodn. by steam reforming - with energy from fuel cell using oxygen and hydrogen from adsorption system
US20020127442A1 (en) * 2000-12-08 2002-09-12 Connor Denis J. Methods and apparatuses for gas separation by pressure swing adsorption with partial gas product feed to fuel cell power source
US20050098033A1 (en) * 2003-11-12 2005-05-12 Kiran Mallavarapu Control of a hydrogen purifying pressure swing adsorption unit in fuel processor module for hydrogen generation

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