WO2014083385A1 - Appareil et procédé de génération d'hydrogène et d'oxygène - Google Patents

Appareil et procédé de génération d'hydrogène et d'oxygène Download PDF

Info

Publication number
WO2014083385A1
WO2014083385A1 PCT/IB2012/056801 IB2012056801W WO2014083385A1 WO 2014083385 A1 WO2014083385 A1 WO 2014083385A1 IB 2012056801 W IB2012056801 W IB 2012056801W WO 2014083385 A1 WO2014083385 A1 WO 2014083385A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate means
side plate
casing
comprised
volume
Prior art date
Application number
PCT/IB2012/056801
Other languages
English (en)
Inventor
Dino GHINI
Original Assignee
Ghini Dino
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 Ghini Dino filed Critical Ghini Dino
Priority to PCT/IB2012/056801 priority Critical patent/WO2014083385A1/fr
Priority to EP12812389.0A priority patent/EP2925908A1/fr
Publication of WO2014083385A1 publication Critical patent/WO2014083385A1/fr

Links

Classifications

    • 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
    • C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
    • C01B3/08—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0203—Preparation of oxygen from inorganic compounds
    • C01B13/0207—Water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • 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
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Definitions

  • the invention relates to apparatuses and methods for generating hydrogen, and in particular it refers to an apparatus and a method for generating hydrogen and oxygen in gaseous form from an acid water solution.
  • Processes and methods are known for generating hydrogen by extraction from hydrocarbons and/or fossil fuels or by extraction from water.
  • hydrocarbons for example natural gas, methane
  • fossil fuels for example coal
  • Hydrogen can be extracted directly from the water by chemical processes that require the use of external electric and/or thermal energy.
  • thermolysis In thermolysis processes thermal energy is used to activate and maintain active the thermochemical reactions that enable the hydrogen to be extracted.
  • Hybrid or mixed extraction processes are also known that comprise combined thermochemical and electrochemical cycles.
  • An object of the present invention is to improve known apparatuses and methods for generating hydrogen in gaseous form.
  • Another object is to make an apparatus and a method that enable large quantities of hydrogen and oxygen in gaseous form to be generated from an inexpensive acid water solution, without the need to supply external electric and/or thermal energy.
  • a further object is to obtain an apparatus and a method that enables hydrogen and oxygen to be generated by exothermic electrochemical reactions that develop little heat.
  • Still another object is to devise an apparatus for generating hydrogen and oxygen that is very compact, can be dimensioned according to the required production and is easily transported and installed at the end users.
  • an apparatus for generating hydrogen and oxygen according to claim 1.
  • a method is provided for generating hydrogen and oxygen according to claim 19.
  • figure 1 is a partially sectioned schematic frontal view of the apparatus for generating hydrogen and oxygen according to the invention
  • figure 2 is an enlarged cross section according to line II-II of figure 1 , in which some parts have been removed;
  • figure 3 is an enlarged and partially sectioned perspective view of a casing and of plate means of the apparatus in figure 1.
  • an apparatus for generating hydrogen and oxygen in gaseous form comprising a container 2 in electrically insulating material, in particular plastics, which defines an internal volume 20 that is suitable for housing a casing 3 made of electrically conductive metal material, in particular stainless steel, for example AISI 316A steel.
  • the container 2 has, for example, a cylindrical shape and is closed at opposite ends by covers 24 fixed reversibly by, for example, bolts, to fixing flanges of said opposite ends.
  • the material of the container 2 is moreover acid-proof.
  • side plate means 4, 5 made of zinc and/or cadmium metal alloy and central plate means 6 made of a metal alloy containing one or more transition metals, i.e. elements of the "d" sector of the periodic table of the elements, in particular iron and/or nickel.
  • the side plate means 4, 5 is fixed and in contact on opposite sides 16, 17 of the central plate means 6 in such a manner as to permit the passage of electric current.
  • the side plate means 4, 5 and the central plate means 6 constitute a sort of galvanic cell and act as electrodes in the process of hydrogen generation explained in detail further on in the description.
  • the side plate means 4, 5 is in electrical connection with the casing 3.
  • a joint element 11 is provided that is made of zinc and placed in contact with the side plate means 4, 5 and interposed between the latter and the casing 3 in such a manner as to permit the passage of current from the side plate means 4, 5 to the casing 3.
  • the joint element 1 1 is further shaped in such a manner as to block and support the side plate means 4, 5.
  • reaction solution S fills the internal volume 20 until it covers completely the casing 3 and is able to react with the side plate means 4, 5 and the central plate means 6 to generate hydrogen and oxygen in gaseous form, as explained in detail further on in the description.
  • the reaction solution S comprises water, a non ionic surfactant containing hydrochloric acid (HC1), titanium dioxide (Ti02) in powder form, a phosphoric acid solution (H3PO4) and an acid solution containing sulphuric acid (H2SO4).
  • HC1 hydrochloric acid
  • Ti02 titanium dioxide
  • H3PO4 phosphoric acid solution
  • H2SO4 acid solution containing sulphuric acid
  • the internal volume 20 comprises an accumulation volume 21 that is not occupied by the reaction solution S and is intended to house the pressurised hydrogen and oxygen in a gaseous phase generated during the generation process.
  • the apparatus further comprises an inlet conduit 13 for introducing into the container 2 the components of the reaction solution S, an outlet conduit 14 to enable the hydrogen and oxygen to exit and a discharge conduit 15 for complete emptying of the container 2.
  • a valve 25 is provided for closing or opening the discharge conduit 15.
  • the casing 3 has, for example, a tubular shape with a square section and comprises four side walls 31, each of which provided with one or more first openings 32 for the entry of the reaction solution S inside the casing and an upper wall 33 provided with at least a second opening 34 for the exit of the hydrogen and of the oxygen that develop in the reaction between the reaction solution S and the side plate means 5 and central plate means 6.
  • the side plate means 4, 5 comprises at least one passage hole 10 to enable the reaction solution S to reach the opposite sides 16, 17 of the central plate means 6.
  • the latter comprises, in the embodiment illustrated, a single central plate 6 having a substantially elongated rectangular flat shape.
  • the central plate means 6 can comprise a plurality of central plates arranged alongside and aligned to form an elongated flat element interposed between the side plate means 4, 5.
  • the side plate means comprises first side plate means 4 connected to a first side 16 of the central plate 6 and second side plate means 5 connected to a second side 17 of the central plate 6.
  • the side plate means 4, 5 comprises a plurality of side plates 8 that overlap and are alongside, each side plate 8 being provided with a respective passage hole 10.
  • the side plates 8 are grouped to form a series of blocks 9 of plates, each block 9 consisting of a plurality of side plates 8 (for example fifteen in number) combined in such a manner that the respective passage holes 10 are substantially aligned on each other and are aligned on the first openings 32 of the casing 3.
  • the blocks 9 are arranged alongside and aligned along the opposite sides 16, 17 of the central plate 6, for example four blocks 9 aligned for each side for a total of eighty-eight side plates 8.
  • the side plates 8 are linked together to form the blocks 9 by means of tubes of plastic 19 inserted into the passage holes 10.
  • the side plate means 4, 5 can comprise a plurality of elongated side plates having dimensions substantially corresponding to those of the single central plate 6, the elongated side plates being grouped to form two blocks of overlapping plates that are arranged on both sides of the central plate 6.
  • the reaction solution S comprises:
  • the surfactant in a percentage comprised between 0.15 and 0.20 %, in particular equal to 0.184 %
  • the mineralised or demineralised water in a percentage comprised between 45.9 and 80%, in particular comprised between 45.890 and 79.964%;
  • the acid solution in a percentage comprised between 14 and 48.2%, in particular comprised between 14.1 11 and 48.185%.
  • the surfactant comprises a hydrochloric acid (HCl)-based gel detergent in a 95% concentration by volume that includes non ionic surfactants in a 5% concentration by volume that have minimum primary biodegradability of 90%.
  • HCl hydrochloric acid
  • the phosphoric acid solution (H3P04) has a concentration by volume in distilled water comprised between 90 and 95%, in particular equal to 92%.
  • the acid solution comprises in water, for example demineralised water, sulphuric acid (H2S04) in a concentration by volume comprised between 25 and 45%, in particular comprised between 30 and 38%.
  • water for example demineralised water, sulphuric acid (H2S04) in a concentration by volume comprised between 25 and 45%, in particular comprised between 30 and 38%.
  • H2S04 sulphuric acid
  • the electrolytic mixture of water and acid solution is used and consumed in the process of generating hydrogen according to the reactions disclosed below, whereas the surfactant and the titanium dioxide take part in the process but are not substantially consumed.
  • the phosphoric acid solution also participates in the process and in certain conditions can be consumed, as explained below.
  • the reaction solution S occupies a volume percentage comprised between 45 and 48%, in particular equal to 47%, whilst the side plate means 4, 5 and the central plate means 6 occupy a volume percentage comprised between 20 and 23%, in particular equal to 21.6%.
  • an accumulation volume 21 in particular equal to 31.4%) remains that is not occupied by the reaction solution S and is able to receive and accumulate in pressure the hydrogen and the oxygen that are generated by the process.
  • the central plate 6 can be made of one or more transition metals, i.e. metals belonging to the group "d" of the periodic table of the elements. Experiments and tests have been conducted using side plates of zinc and a central plate 6 made of iron, nickel and of iron and nickel alloy.
  • the total potential difference is the sum of the partial potential differences and is 0.82 V.
  • the metal plates immersed in the reaction solution S act as electrodes owing to the fact that they are placed in contact with on another.
  • the central plate 6 made of iron and/or nickel acts as a cathode (positive electrode) whilst the side plates 8 made of zinc act as an anode (negative electrode).
  • the function of the casing 3 is to become electrified in such a manner as to charge with negative ionic energy, by the joint element 1 1 creating a "Faraday cage effect" that has the function of accelerating the negative ions forced to pass into the passage holes 10 of the
  • the water can be demineralised (distilled) or mineralised.
  • the dissolved substances that constituted the fixed residue are inert and do not take part in the chemical reactions set out below.
  • the sulphuric acid is a polyprotic acid, i.e. an acid that can dissociate several times.
  • the electrolytic mixture inside the container 2 will determine the following behaviours of the side 8 and central 6 metallic plates.
  • the ions HS04 " deriving from the dissociation of the sulphuric acid move to the side plates 8 of zinc, causing the following reactions:
  • the iron and/or nickel of the central plate 6 does not participate in the reaction and does not undergo molecular modification, but acts as a catalyst, i.e. it enables the dissociation of the hydronium ions via heterogeneous catalysis.
  • the central plate 6 made of iron and/or nickel becomes the cathode, i.e. the positive electrode in which the negative reduction process occurs, whilst the side plates 8 made of zinc are after electronic migration the negative anode, i.e. the electrode in which the positive oxidation process occurs.
  • the reaction solution S further contains a gel detergent based on 95% hydrochloric acid (HC1) concentration, consisting of a 5% non ionic surfactant.
  • HC1 hydrochloric acid
  • the zinc chloride ( ⁇ 0 2 ) -then releases electrons that through contact are transmitted by the side plates 8 of zinc to the central plate 6 of iron and/or nickel.
  • hydrochloric acid In the electrolytic dissociation in the mixture with water the hydrochloric acid (HC1) forms hydronium ions ⁇ 3 ⁇ _ + and in contact with the side plates of zinc supplies the electronic flow transmitted to the central plate of iron and/or nickel.
  • the reaction solution S further contains a phosphoric acid solution (H3PO4) in a 92% concentration by volume with distilled water.
  • H3PO4 phosphoric acid solution
  • the phosphoric acid is polyprotic, i.e. has the ability to dissociate electrolytically at least three times, it is used to generate hydronium ions H3O and accelerate the reaction, in particular in an initial activation step.
  • reaction solution S the quantity of electrolytic solution (water and acid solution of sulphuric acid H2SO4+H2O) is lacking, the phosphoric acid will tend to react with the side plates 8 made of zinc according to the reaction:
  • the zinc phosphate (ZnPC ⁇ ) like the zinc sulphate, will precipitate to the bottom of the container without accumulating on the side plates owing to the action of the titanium dioxide.
  • the function of the non ionic surfactant is very important, because when it is solubilised in the electrolytic mixture it has the function of increasing the interaction distance between the molecules of the water and the positive and negative ions that form in the mixture, promoting the catalysis reaction. Further, experimental tests have shown that in cooperation of titanium oxide, the surfactant prevents the accumulation on the surfaces of the side plates 8 of zinc sulphate (ZnSC « 4), zinc phosphate (ZnPC ⁇ ) and zinc chloride (ZnCl 2 ).
  • the central plate 6 can be made using one or more of the transition metals belonging to sector "d" of the periodic table of the elements.
  • the iron and the nickel can then be replaced or cooperate with other elements such as chromium, cobalt, copper, molybdenum, technetium, ruthenium, rhodium, palladium, silver, cadmium, tungsten, rhenium, osmium, iridium, platinum, gold and mercury.
  • gaseous molecular hydrogen (H 2 ), monoatomic hydrogen (H), and gaseous molecular oxygen (0 2 ) will be released according to the relations A, B, C specified above in the quantity 3H 2 +0 2 +4H.
  • the monoatomic hydrogen (H) will tend to be reabsorbed by the electrolytic mixture and will make a large contribution to ionic dissociation, enabling the speed of reaction and production of the gas to be increased.
  • the operation of the apparatus 1 and the method for using this apparatus to generate hydrogen and oxygen in a gaseous phase provide an initial starting step required to activate the electrochemical reactions.
  • reaction solution S Inside the previously opened container 2 or through the inlet conduit 13, the following is introduced in sequence to form the reaction solution S:
  • the mineralised or demineralised water in a volume percentage comprised between 45.9 and 80%, in particular comprised between 45.890 and 79.964%;
  • the acid solution in a volume percentage comprised between 14 and 48.2%, in particular comprised between 14.11 1 and 48.185%, and containing sulphuric acid (H2SO4) and the non ionic surfactant containing hydrochloric acid (HC1) and in a volume percentage comprised between 0.15 and 0.20 %, in particular equal to 0.184%.
  • the water and the acid solution form the electrolytic solution from which to extract, by the oxidation-reduction processes disclosed above, hydrogen and oxygen in gaseous form. Numerous tests have shown that it is necessary to introduce the water into the apparatus always before the acid solution and the surfactant to control the electrochemical reactions. In one production operating step, the reaction solution S must be integrated progressively and in particular the electrolytic solution that is consumed by dissociation, by delivering water and the acid solution according to a preset volume percentage.
  • the side plate means 4, 5 comprises 88 side plates 8 made of zinc, each square side plate 8 measuring 10x10x0.4 cm.
  • the central plate means 6 comprises a single central plate made of nickel measuring 10x40x1.2 cm.
  • the total volume occupied by all the assembled plates is 4 dm .
  • joint element 1 1 made of zinc The volume occupied by joint element 1 1 made of zinc is 0.080 dm .
  • the tubular casing made of stainless steel has a side square section of 12.6 cm, wall thickness 0.3 cm and height of 50 cm with an occupied volume of 0.781 dm3.
  • the container 2 has a cylindrical shape with an internal diameter of 18 cm and an internal
  • the internal volume 20 of the container 2 is thus equal to 18.55 dm .
  • reaction solution S The components of the reaction solution S are introduced according to the following quantities in volume:
  • the components of the electrolytic solution i.e. the acid solution of sulphuric acid and water, have to be introduced in preset ratios. Tests have been conducted with the following volume ratios:
  • the ratio (a) is the quantity of acid solution necessary for the first activation, i.e. the minimum quantity of acid solution necessary for activating the reaction.
  • the table shows how, by increasing the quantity of acid solution in relation to water, the speed reaction and generation (volume) of hydrogen and oxygen increase.
  • the gas (hydrogen and oxygen) generated by the reaction accumulates in the internal volume 20 in which the accumulation volume 21 not occupied by the reaction solution S is provided for the purpose. Inside this accumulation volume 21 the gas is maintained at an operating pressure between 2 and 3.5 bar. This operating pressure both enables the monoatomic hydrogen (H) developing in the reactions to be reabsorbed by the electrolytic mixture and prevents the non ionic surfactant from foaming and ensures the stability of the hydrogen and oxygen generation process.
  • the reactions can be stopped by interrupting hydrogen generation, by removing the metal plates from the apparatus 1 or emptying the reaction solution S from the container via the discharge conduit 15.
  • the pressure of the gas inside the container 2 enables the solution to exit.
  • the apparatus 1 enables large quantities of hydrogen to be generated from components (water, sulphuric acid, hydrochloric acid, phosphoric acid, surfactant) that are easily found on the market and are cheap.
  • the gas obtained consisting of hydrogen and oxygen can be used directly to supply internal combustion engines, boilers, fuel cells or other chemical/energy processes.
  • the apparatus of the invention is particularly compact because it comprises a container that can be transported and positioned on the premises of the end users. Further, it can be sized according to the specific hydrogen requirements to be meet limited needs (for example for domestic use) or larger-scale needs (electric power plants).
  • the apparatus and the method of the invention are not pollutant and harmful to the environment because they do not cause the production of toxic and harmful by products and generate gases (hydrogen and oxygen) that can be burnt completely.
  • the precipitates of zinc sulphate (ZnSC>4), zinc phosphate (ZnPC ⁇ ) and zinc chloride (ZnCl2) can be easily recovered and reused in different productive cycles.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

L'invention concerne un appareil de génération d'hydrogène et d'oxygène qui comprend : - un récipient (2) fait de matière isolante de façon électrique et définissant un volume interne (20), - un boîtier (3) fait d'une matière métallique électroconductrice, inséré dans ledit volume interne (20), - des moyens de plaque latéraux (4, 5) faits de zinc et/ou d'alliage métallique de cadmium et fixés en contact avec les côtés opposés (16, 17) du moyen de plaque central (6) fait d'un alliage métallique contenant un ou plusieurs métaux de transition, en particulier le fer et/ou le nickel, lesdits moyens de plaque latéraux (4, 5) et ledit moyen de plaque central (6) étant reçus à l'intérieur dudit boîtier (3), lesdits moyens de plaque latéraux (4, 5) étant en connexion électrique avec ce dernier ; - une solution de réaction (S) disposée pour remplir ledit volume interne (20) jusqu'à ce qu'il couvre complètement ledit boîtier (3) et disposée pour interagir avec lesdits moyens de plaque latéraux (4, 5) et ledit moyen de plaque central (6) pour générer de l'hydrogène et de l'oxygène sous forme gazeuse, ladite solution de réaction comprenant de l'eau, un tensio-actif non ionique contenant de l'acide chlorhydrique (HCl), du dioxyde de titane (TiO2) sous forme pulvérulente, une solution d'acide phosphorique (H3PO4) et une solution acide contenant de l'acide sulfurique (H2SO4).
PCT/IB2012/056801 2012-11-28 2012-11-28 Appareil et procédé de génération d'hydrogène et d'oxygène WO2014083385A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2012/056801 WO2014083385A1 (fr) 2012-11-28 2012-11-28 Appareil et procédé de génération d'hydrogène et d'oxygène
EP12812389.0A EP2925908A1 (fr) 2012-11-28 2012-11-28 Appareil et procédé de génération d'hydrogène et d'oxygène

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2012/056801 WO2014083385A1 (fr) 2012-11-28 2012-11-28 Appareil et procédé de génération d'hydrogène et d'oxygène

Publications (1)

Publication Number Publication Date
WO2014083385A1 true WO2014083385A1 (fr) 2014-06-05

Family

ID=47520205

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/056801 WO2014083385A1 (fr) 2012-11-28 2012-11-28 Appareil et procédé de génération d'hydrogène et d'oxygène

Country Status (2)

Country Link
EP (1) EP2925908A1 (fr)
WO (1) WO2014083385A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022162423A1 (fr) * 2021-01-29 2022-08-04 Ghini Dino Procédé et installation de génération d'hydrogène

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951802A (en) * 1957-06-05 1960-09-06 Joseph C White Electrolytic oxygen generator
DE3643352A1 (de) * 1986-12-18 1988-06-23 Satzinger Gebhard Gmbh Co Einrichtung zur elektrochemischen erzeugung von gasen zum transport von fluiden medien
US20080190781A1 (en) * 2005-04-28 2008-08-14 Chao Huang Electrochemical Method for Producing and Storing Hydrogen by the Redox of Zinc and Water
US20110048962A1 (en) * 2009-08-27 2011-03-03 Sun Catalytix Corporation Compositions, electrodes, methods, and systems for water electrolysis and other electrochemical techniques
US20120027672A1 (en) * 2010-07-28 2012-02-02 Chung Yuan Christian University Hydrogen-generating material and method for generating hydrogen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951802A (en) * 1957-06-05 1960-09-06 Joseph C White Electrolytic oxygen generator
DE3643352A1 (de) * 1986-12-18 1988-06-23 Satzinger Gebhard Gmbh Co Einrichtung zur elektrochemischen erzeugung von gasen zum transport von fluiden medien
US20080190781A1 (en) * 2005-04-28 2008-08-14 Chao Huang Electrochemical Method for Producing and Storing Hydrogen by the Redox of Zinc and Water
US20110048962A1 (en) * 2009-08-27 2011-03-03 Sun Catalytix Corporation Compositions, electrodes, methods, and systems for water electrolysis and other electrochemical techniques
US20120027672A1 (en) * 2010-07-28 2012-02-02 Chung Yuan Christian University Hydrogen-generating material and method for generating hydrogen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022162423A1 (fr) * 2021-01-29 2022-08-04 Ghini Dino Procédé et installation de génération d'hydrogène

Also Published As

Publication number Publication date
EP2925908A1 (fr) 2015-10-07

Similar Documents

Publication Publication Date Title
Zhang et al. Redox-mediated water splitting for decoupled H2 production
US20200153068A1 (en) Molten air rechargeable batteries
US7513978B2 (en) Method and apparatus for generating hydrogen
Chery et al. Overview on CO2 valorization: challenge of molten carbonates
Peljo et al. All-vanadium dual circuit redox flow battery for renewable hydrogen generation and desulfurisation
US20050126924A1 (en) Commercial production of hydrogen from water
WO2015056641A1 (fr) Dispositif d'électrolyse d'eau et système de stockage d'énergie et d'alimentation en énergie utilisant celui-ci
Alam et al. Experimental study of hydroxy gas (HHO) production with variation in current, voltage and electrolyte concentration
US20220074059A1 (en) Electrolytic cell for h2 generation
JP2006298670A (ja) 水素発生方法及びその装置、並びに電気化学エネルギー生成方法及びそのシステム
Li et al. Canadian advances in the copper–chlorine thermochemical cycle for clean hydrogen production: a focus on electrolysis
WO2014083385A1 (fr) Appareil et procédé de génération d'hydrogène et d'oxygène
JP4368284B2 (ja) 水素ガス発生装置、水素ガスの製造方法および燃料電池
WO2019002841A1 (fr) Générateur d'hydrogène
US20230010889A1 (en) Device for producing hydrogen and/or ammonia and a method for producing hydrogen and/or ammonia
KR20200022442A (ko) 자체-지속 가능한 고체 산화물 연료 전지 시스템 및 가스정에 전력 공급하는 방법
Ratlamwala et al. Energy and exergy analyses of hybrid photocatalytic hydrogen production reactor for CuCl cycle
KR102204669B1 (ko) 산-염기 용액을 이용한 수소생산 장치
CN111465717A (zh) 用于在固体物质中储存电能的方法
US20130088184A1 (en) Battery device utilizing oxidation and reduction reactions to produce electric potential
WO2006113463A2 (fr) Appareil et procede permettant une production controlable d'hydrogene a une vitesse acceleree
Uekert et al. Electrolyzer and Fuel Cell Recycling for a Circular Hydrogen Economy
JP7464996B2 (ja) 水素の持続可能な生成のための継続的なプロセス
WO2013112619A1 (fr) Appareil et procédés de séparation et/ou séquestration
AU2004237840B2 (en) Commercial production of hydrogen from water

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12812389

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2012812389

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012812389

Country of ref document: EP