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1. WO2022162423 - PROCESS AND PLANT FOR THE PRODUCTION OF HYDROGEN

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Publication Number WO/2022/162423
Publication Date 04.08.2022
International Application No. PCT/IB2021/050731
International Filing Date 29.01.2021
IPC
C01B 3/08 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
02Production of hydrogen or of gaseous mixtures containing hydrogen
06by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
08with metals
C25B 11/046 2021.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
11Electrodes; Manufacture thereof not otherwise provided for
04characterised by the material
042Electrodes formed of a single material
046Alloys
H01M 4/134 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
134Electrodes based on metals, Si or alloys
H01M 4/36 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
H01M 4/46 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
46Alloys based on magnesium or aluminium
CPC
B01J 7/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
7Apparatus for generating gases
02by wet methods
C01B 3/08
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
3Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it
02Production of hydrogen or of gaseous mixtures containing ; a substantial proportion of; hydrogen
06by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
08with metals
C01B 7/01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
7Halogens; Halogen acids
01Chlorine; Hydrogen chloride
H01M 4/88
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
H01M 4/9041
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
9041Metals or alloys
H01M 8/065
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
06Combination of fuel cells with means for production of reactants or for treatment of residues
0606with means for production of gaseous reactants
065by dissolution of metals or alloys; by dehydriding metallic substances
Applicants
  • GHINI, Dino [IT]/[IT]
Inventors
  • GHINI, Dino
Agents
  • ZARDI, Marco
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS AND PLANT FOR THE PRODUCTION OF HYDROGEN
(FR) PROCÉDÉ ET INSTALLATION DE GÉNÉRATION D’HYDROGÈNE
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Abstract
(EN) Process for the production of hydrogen from an aqueous solution containing hydrochloric acid in dissociated form, within said aqueous solution there being present at least one electrode composed of a metal alloy containing a plurality of metals with different standard reduction potentials, the process comprising the following steps: reduction to hydrogen of the hydronium ions present in the solution, as a result of a flow of electrons generated in the electrode between pairs of metals, from the lower potential metal to the higher potential metal, and extraction of hydrogen thus obtained from said aqueous solution.
(FR) L'invention concerne un procédé de génération d'hydrogène à partir d'une solution aqueuse contenant de l'acide chlorhydrique sous forme dissociée, dans ladite solution aqueuse, au moins une électrode composée d'un alliage métallique contenant une pluralité de métaux ayant différents potentiels de réduction standard. Le procédé comprend les étapes suivantes : la réduction de l'hydrogène des ions hydronium présents dans la solution, suite à un flux d'électrons générés dans l'électrode entre des paires de métaux, du métal à potentiel inférieur au métal à potentiel supérieur, et l'extraction de l'hydrogène ainsi obtenu à partir de ladite solution aqueuse.
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