GB1486053A - Production of hydrogen and oxygen from water - Google Patents

Production of hydrogen and oxygen from water

Info

Publication number
GB1486053A
GB1486053A GB2168075A GB2168075A GB1486053A GB 1486053 A GB1486053 A GB 1486053A GB 2168075 A GB2168075 A GB 2168075A GB 2168075 A GB2168075 A GB 2168075A GB 1486053 A GB1486053 A GB 1486053A
Authority
GB
United Kingdom
Prior art keywords
iron
water
chloride
hcl
oxygen
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.)
Expired
Application number
GB2168075A
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.)
Rheinbraun AG
Original Assignee
Rheinische Braunkohlenwerke AG
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 Rheinische Braunkohlenwerke AG filed Critical Rheinische Braunkohlenwerke AG
Publication of GB1486053A publication Critical patent/GB1486053A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C01B3/061—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 by reaction of metal oxides with water
    • C01B3/063—Cyclic methods
    • 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
    • C01B3/068—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 the hydrogen being generated from the water as a result of a cyclus of reactions, not covered by groups C01B3/063 or C01B3/105
    • 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
    • C01B3/10—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 by reaction of water vapour with metals
    • C01B3/105—Cyclic methods
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/03—Preparation from chlorides
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Catalysts (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Iron (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1486053 Hydrogen and oxygen from water RHEINISCHE BRAUNKOHLENWERKE AG 20 May 1975 [20 May 1974] 21680/75 Heading C1A Hydrogen and oxygen are obtained from water in a thermochemical multi-step cyclic process involving at least four process steps in which water and one or more auxiliary reactants selected from iron oxides, iron chlorides, Cl 2 , HCl, H 2 and O 2 are reacted at elevated temperatures, wherein (a) in one process step an iron chloride is formed by the reaction of an iron oxide with Cl 2 thereby setting free O 2 , or with HCl, (b) another iron chloride is formed by the reaction of the same or another iron oxide with Cl 2 and/or HCl in another process step (c) the iron oxide or oxides used in process steps (a) and (b) are re-formed from the iron chloride by reacting the latter with one or more auxiliary reactants or water in at least two further process steps and thereby (i) setting free H 2 and (ii) setting free O 2 when an iron chloride is formed by reacting an iron oxide with HCl in step (a) or step (b), and (d) separately recovering the H 2 and O 2 formed. Preferably, steps (a) and (b) are conducted at 450‹ to 1050‹ C., with ferrous chloride being formed in step (a) and ferric chloride in step (b).
GB2168075A 1974-05-20 1975-05-20 Production of hydrogen and oxygen from water Expired GB1486053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742424381 DE2424381A1 (en) 1974-05-20 1974-05-20 PROCESS FOR THE PRODUCTION OF HYDROGEN

Publications (1)

Publication Number Publication Date
GB1486053A true GB1486053A (en) 1977-09-14

Family

ID=5916020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2168075A Expired GB1486053A (en) 1974-05-20 1975-05-20 Production of hydrogen and oxygen from water

Country Status (6)

Country Link
JP (1) JPS5118296A (en)
BE (1) BE829249A (en)
DE (1) DE2424381A1 (en)
FR (1) FR2272025A1 (en)
GB (1) GB1486053A (en)
NL (1) NL7505702A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022106911A1 (en) * 2020-11-20 2022-05-27 Ecubes D.O.O. Process for the production of hydrogen by means of thermal energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022106911A1 (en) * 2020-11-20 2022-05-27 Ecubes D.O.O. Process for the production of hydrogen by means of thermal energy

Also Published As

Publication number Publication date
NL7505702A (en) 1975-11-24
JPS5118296A (en) 1976-02-13
BE829249A (en) 1975-09-15
DE2424381A1 (en) 1975-12-04
FR2272025A1 (en) 1975-12-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee