JPS57145003A - Preparation of hydrogen by decomposition of water - Google Patents

Preparation of hydrogen by decomposition of water

Info

Publication number
JPS57145003A
JPS57145003A JP2685381A JP2685381A JPS57145003A JP S57145003 A JPS57145003 A JP S57145003A JP 2685381 A JP2685381 A JP 2685381A JP 2685381 A JP2685381 A JP 2685381A JP S57145003 A JPS57145003 A JP S57145003A
Authority
JP
Japan
Prior art keywords
raw material
water
metal
oxide
temperature
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.)
Pending
Application number
JP2685381A
Other languages
Japanese (ja)
Inventor
Kiyoshi Otsuka
Akira Morikawa
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.)
NIPPON KIHATSUYU KK
JGC Corp
Original Assignee
NIPPON KIHATSUYU KK
JGC Corp
Japan Gasoline Co Ltd
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 NIPPON KIHATSUYU KK, JGC Corp, Japan Gasoline Co Ltd filed Critical NIPPON KIHATSUYU KK
Priority to JP2685381A priority Critical patent/JPS57145003A/en
Publication of JPS57145003A publication Critical patent/JPS57145003A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

  • Carbon And Carbon Compounds (AREA)

Abstract

PURPOSE: To obtain H2 gas and a mixed gas of CO, CO2, and CH4 separately, relatively inexpensively, by reducing an oxide of a metal of the II or III group with a carbonaceous raw material, bringing the reducing substance into contact with H2O, and consuming repeatedly water and the carbonaceous raw material.
CONSTITUTION: An oxide shown by the formula MXOY of a metal of the II or III group is blended with carbon or a carbonaceous raw material and heated to carry out a reaction shown by the formulaI, and the oxide is reduced to a metal element and/or lower oxide shown by the formula MXOY-n. The reduced substance from the former stage is brought into contact with water and/or steam to evolve H2 by the reaction shown by the formula II and simultaneously to oxidize the reduced substance. Since in the operation the MXOY is specified as above-mentioned, water decomposition at low temperature of about 300°C can be attained. The reduction temperature, depending upon the kinds of the metal M and carbonaceous the raw material, is preferably ≥ about 400°C. If the temperature is too high, a high-quality material is required for a reaction tube, so it is not advantageous. The practical temperature of water decomposition is about 200W500°C.
COPYRIGHT: (C)1982,JPO&Japio
JP2685381A 1981-02-27 1981-02-27 Preparation of hydrogen by decomposition of water Pending JPS57145003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2685381A JPS57145003A (en) 1981-02-27 1981-02-27 Preparation of hydrogen by decomposition of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2685381A JPS57145003A (en) 1981-02-27 1981-02-27 Preparation of hydrogen by decomposition of water

Publications (1)

Publication Number Publication Date
JPS57145003A true JPS57145003A (en) 1982-09-07

Family

ID=12204825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2685381A Pending JPS57145003A (en) 1981-02-27 1981-02-27 Preparation of hydrogen by decomposition of water

Country Status (1)

Country Link
JP (1) JPS57145003A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002004345A1 (en) * 2000-07-07 2002-01-17 National University Of Singapore Method for hydrogen production
WO2004020330A1 (en) * 2002-08-30 2004-03-11 Tohoku Techno Arch Co., Ltd. Method of thermochemical decomposition of water
WO2007102875A2 (en) * 2005-12-22 2007-09-13 Seldon Technologies, Inc. Methods of producing hydrogen using nanotubes and articles thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002004345A1 (en) * 2000-07-07 2002-01-17 National University Of Singapore Method for hydrogen production
WO2004020330A1 (en) * 2002-08-30 2004-03-11 Tohoku Techno Arch Co., Ltd. Method of thermochemical decomposition of water
WO2007102875A2 (en) * 2005-12-22 2007-09-13 Seldon Technologies, Inc. Methods of producing hydrogen using nanotubes and articles thereof
WO2007102875A3 (en) * 2005-12-22 2007-12-21 Seldon Technologies Llc Methods of producing hydrogen using nanotubes and articles thereof

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