GB1486140A - Process for the production of hydrogen and oxygen by decomposition of water - Google Patents

Process for the production of hydrogen and oxygen by decomposition of water

Info

Publication number
GB1486140A
GB1486140A GB2167875A GB2167875A GB1486140A GB 1486140 A GB1486140 A GB 1486140A GB 2167875 A GB2167875 A GB 2167875A GB 2167875 A GB2167875 A GB 2167875A GB 1486140 A GB1486140 A GB 1486140A
Authority
GB
United Kingdom
Prior art keywords
water
oxygen
hydrogen
sulphide
oxide
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
GB2167875A
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 GB1486140A publication Critical patent/GB1486140A/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
    • 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

Abstract

1486140 Hydrogen and oxygen from water RHEINISCHE BRAUNKOHLENWERKE AG 20 May 1975 [20 May 1974] 21678/75 Heading C1A Hydrogen and oxygen are produced from water in a thermochemical multi-step cyclic process involving at least three process steps in which one or more auxiliary reactants selected from the sulphates, sulphides and oxides of Mn, Mg, Fe, Ni, Co and Zn as well as SO 2 , S, H 2 S, H 2 and O 2 are used, the process comprising (a) forming a divalent sulphate from the corresponding sulphide or from a mono-, di- or trivalent oxide of the auxiliary reactant metal by reacting in one process step (i) a sulphide with SO 2 or Sn in the presence or absence of water, or (ii) an oxide with SO 2 in the presence or absence of water, (b) treating the divalent sulphate formed to evolve SO 2 and O 2 , and in a further process step obtaining H 2 by cleaving H 2 S, or by reacting a divalent auxiliary metal sulphate, sulphide or oxide with H 2 O or H 2 S, (c) re-forming the starting materials of the process steps (a) and (b) in one or more further process steps, (d) recovering the resultant reaction products and recycling them to the corresponding process steps and, (e) removing at least part of the thereby obtained H 2 and O 2 as final products from the cyclic process. Preferably, each reaction step is carried out at 200‹ to 1100‹ C, with those steps evolving H 2 and O 2 being conducted in the range 900‹ to 1100‹ C.
GB2167875A 1974-05-20 1975-05-20 Process for the production of hydrogen and oxygen by decomposition of water Expired GB1486140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742424351 DE2424351A1 (en) 1974-05-20 1974-05-20 PROCESS FOR THE PRODUCTION OF HYDROGEN

Publications (1)

Publication Number Publication Date
GB1486140A true GB1486140A (en) 1977-09-21

Family

ID=5915998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2167875A Expired GB1486140A (en) 1974-05-20 1975-05-20 Process for the production of hydrogen and oxygen by decomposition of water

Country Status (6)

Country Link
JP (1) JPS516891A (en)
BE (1) BE829247A (en)
DE (1) DE2424351A1 (en)
FR (1) FR2272027A1 (en)
GB (1) GB1486140A (en)
NL (1) NL7505701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8691068B1 (en) * 2007-11-09 2014-04-08 University Of Central Florida Research Foundation, Inc. Solar metal sulfate-ammonia based thermochemical water splitting cycle for hydrogen production

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734376Y2 (en) * 1978-04-05 1982-07-29
CN112079333B (en) * 2020-09-07 2022-08-09 东方电气集团东方锅炉股份有限公司 Chain reaction hydrogen production system and hydrogen production method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8691068B1 (en) * 2007-11-09 2014-04-08 University Of Central Florida Research Foundation, Inc. Solar metal sulfate-ammonia based thermochemical water splitting cycle for hydrogen production

Also Published As

Publication number Publication date
JPS516891A (en) 1976-01-20
BE829247A (en) 1975-09-15
NL7505701A (en) 1975-11-24
FR2272027A1 (en) 1975-12-19
DE2424351A1 (en) 1975-12-04

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed