FR2342245A1 - Converting water into hydrogen and oxygen - esp. for utilising waste heat from nuclear reactors - Google Patents

Converting water into hydrogen and oxygen - esp. for utilising waste heat from nuclear reactors

Info

Publication number
FR2342245A1
FR2342245A1 FR7705682A FR7705682A FR2342245A1 FR 2342245 A1 FR2342245 A1 FR 2342245A1 FR 7705682 A FR7705682 A FR 7705682A FR 7705682 A FR7705682 A FR 7705682A FR 2342245 A1 FR2342245 A1 FR 2342245A1
Authority
FR
France
Prior art keywords
decomposing
water
esp
hydrogen
stage
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Withdrawn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
FR7705682A
Other languages
French (fr)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2342245A1 publication Critical patent/FR2342245A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Catalysts (AREA)

Abstract

Process for decomposing water into hydrogen and oxygen comprises (1) reacting iodine with water and H2SO3 to form HI and H2SO4; (2) decomposing the HI into H2+I2; (3) decomposing the H2SO4 into H2O and SO3 e.g. via Fe2O3 or CuO; (4) decomposing the SO3 into SO2+O2 and (5) reacting the SO2 with water to form further H2SO3. Pref. stage (2) is operated at 400-900 degrees C, stage (3) at around the b.pt. of H2SO4 (nearly equal 300 degrees C) and stage (4) is conducted at 500-900 degrees C in the presence of a catalyst such as V2O5 or Pt. Stage (2) may be accomplished by reacting HI with Fe2O3 to form I2, FeO and H2O, and the FeO is reacted with H2O to form Fe2O3 and H2. Process is esp. useful for converting surplus heat, e.g. from nuclear reactors, into a useful fuel source. Process has less technical difficulties than decomposing water by electrolysis.
FR7705682A 1976-02-25 1977-02-25 Converting water into hydrogen and oxygen - esp. for utilising waste heat from nuclear reactors Withdrawn FR2342245A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66107276A 1976-02-25 1976-02-25

Publications (1)

Publication Number Publication Date
FR2342245A1 true FR2342245A1 (en) 1977-09-23

Family

ID=24652095

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705682A Withdrawn FR2342245A1 (en) 1976-02-25 1977-02-25 Converting water into hydrogen and oxygen - esp. for utilising waste heat from nuclear reactors

Country Status (4)

Country Link
JP (1) JPS52107296A (en)
BE (1) BE851499A (en)
DE (1) DE2706267A1 (en)
FR (1) FR2342245A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114195094A (en) * 2022-02-16 2022-03-18 浙江百能科技有限公司 Full-flow method and device for thermochemical sulfur-iodine cycle hydrogen production

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4840900B2 (en) * 2005-06-02 2011-12-21 独立行政法人日本原子力研究開発機構 Thermochemical hydrogen production method and thermochemical hydrogen production apparatus
JP4783173B2 (en) * 2006-02-15 2011-09-28 株式会社東芝 Hydrogen production method
JP5490074B2 (en) * 2010-12-28 2014-05-14 トヨタ自動車株式会社 Sulfur trioxide decomposition catalyst and hydrogen generation method
JP5497688B2 (en) 2011-05-25 2014-05-21 トヨタ自動車株式会社 Sulfur trioxide decomposition catalyst and hydrogen generation method
JP5821777B2 (en) * 2012-05-21 2015-11-24 トヨタ自動車株式会社 Ammonia synthesis method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2516441A1 (en) * 1974-04-27 1975-10-30 Agency Ind Science Techn Pyrolysis of water for pure hydrogen prodn - by reaction with iodine and sulphur dioxide and pyrolysis of hydriodic and sulphuric acids

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2516441A1 (en) * 1974-04-27 1975-10-30 Agency Ind Science Techn Pyrolysis of water for pure hydrogen prodn - by reaction with iodine and sulphur dioxide and pyrolysis of hydriodic and sulphuric acids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114195094A (en) * 2022-02-16 2022-03-18 浙江百能科技有限公司 Full-flow method and device for thermochemical sulfur-iodine cycle hydrogen production
CN114195094B (en) * 2022-02-16 2022-05-13 浙江百能科技有限公司 Full-flow method and device for thermochemical sulfur-iodine cycle hydrogen production

Also Published As

Publication number Publication date
JPS52107296A (en) 1977-09-08
BE851499A (en) 1977-08-16
DE2706267A1 (en) 1977-09-08

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Legal Events

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