GB1252222A – – Google Patents
GB1252222A – – Google Patents
Info
Publication number
GB1252222A
GB1252222A
GB1252222DA
GB1252222A
GB 1252222 A
GB1252222 A
GB 1252222A
GB 1252222D A
GB1252222D A
GB 1252222DA
GB 1252222 A
GB1252222 A
GB 1252222A
Authority
GB
United Kingdom
Prior art keywords
alkaline earth
bromide
reaction
hydrogen
earth metal
Prior art date
1969-02-19
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
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.)
1969-02-19
Filing date
1970-01-21
Publication date
1971-11-03
1970-01-21
Application filed
filed
Critical
1971-11-03
Publication of GB1252222A
publication
Critical
patent/GB1252222A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
H05H1/00—Generating plasma; Handling plasma
H05H1/24—Generating plasma
H05H1/26—Plasma torches
H05H1/30—Plasma torches using applied electromagnetic fields, e.g. high frequency or microwave energy
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
C01B3/10—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
1,252,222. Hydrogen. EUROPEAN ATOMIC ENERGY COMMUNITY. 21 Jan., 1970 [19 Feb., 1969], No. 3009/70. Heading C1A. A process for the production of hydrogen is based on a cycle of reactions which comprise: (1) Reacting mercury with hydrogen bromide to form mercuric bromide and hydrogen (2) reacting the mercuric bromide with an alkaline earth metal hydroxide to form an alkaline earth bromide, mercuric oxide and water (3) decomposing the mercuric oxide to give mercury and oxygen (4) hydrolysing the alkaline earth bromide to form the alkaline earth hydroxide and hydrogen bromide, the reaction products hydrogen bromide, mercury and, preferably, the alkaline earth hydroxide are recycled to the reaction system. For reaction (1) the temperature range may be between 25‹ and 300‹ C. The hydrogen bromide may be in liquid or gaseous form, or in solution, and the reaction may be carried out at elevated pressure. In reaction (2) temperature may be in the range 90-100‹ C., and it is preferred to use an excess of alkaline earth metal hydroxide. Specified alkaline earth metal hydroxides are Ca(OH) 2 , Sr(OH) 2 and Ba(OH) 2 . Reaction (3) takes place under normal pressure at a temperature between 500‹ and 600‹ C. Reaction (4) is preferably carried out at 600- 750‹ C. at elevated pressure; this may be accomplished by heating the starting materials in a closed container. Alternatively the alkaline earth metal bromide may be heated at normal pressure in a current of water vapour, and the water vapour condensed to recover the HBr.
GB1252222D
1969-02-19
1970-01-21
Expired
GB1252222A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
NL6902604A
NL6902604A
(en)
1969-02-19
1969-02-19
Publications (1)
Publication Number
Publication Date
GB1252222A
true
GB1252222A
(en)
1971-11-03
Family
ID=19806198
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1252222D
Expired
GB1252222A
(en)
1969-02-19
1970-01-21
Country Status (10)
Country
Link
US
(1)
US3594124A
(en)
JP
(1)
JPS4934316B1
(en)
AT
(1)
AT297658B
(en)
BE
(1)
BE745580A
(en)
CH
(1)
CH527122A
(en)
DE
(1)
DE2005015A1
(en)
FR
(1)
FR2035558A5
(en)
GB
(1)
GB1252222A
(en)
LU
(1)
LU60372A1
(en)
NL
(1)
NL6902604A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4002729A
(en)
*
1976-04-06
1977-01-11
The United States Of America As Represented By The United States Energy Research And Development Administration
Method for thermochemical decomposition of water
US20060219816A1
(en)
2005-04-05
2006-10-05
Durr Systems
Rotary atomizer component
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB232431A
(en)
*
1924-05-29
1925-04-23
Emil Collett
Improved process for the production of hydrogen
NL84820C
(en)
*
1952-01-01
1956-11-15
1969
1969-02-19
NL
NL6902604A
patent/NL6902604A/xx
unknown
1970
1970-01-21
GB
GB1252222D
patent/GB1252222A/en
not_active
Expired
1970-01-30
DE
DE19702005015
patent/DE2005015A1/en
active
Pending
1970-02-06
US
US9399A
patent/US3594124A/en
not_active
Expired – Lifetime
1970-02-06
BE
BE745580D
patent/BE745580A/en
unknown
1970-02-11
CH
CH198270A
patent/CH527122A/en
not_active
IP Right Cessation
1970-02-13
AT
AT134570A
patent/AT297658B/en
not_active
IP Right Cessation
1970-02-17
FR
FR7005668A
patent/FR2035558A5/fr
not_active
Expired
1970-02-18
JP
JP45013536A
patent/JPS4934316B1/ja
active
Pending
1970-02-18
LU
LU60372D
patent/LU60372A1/xx
unknown
Also Published As
Publication number
Publication date
JPS4934316B1
(en)
1974-09-13
US3594124A
(en)
1971-07-20
FR2035558A5
(en)
1970-12-18
CH527122A
(en)
1972-08-31
NL6902604A
(en)
1970-08-21
DE2005015A1
(en)
1970-09-10
BE745580A
(en)
1970-07-16
AT297658B
(en)
1972-04-10
LU60372A1
(en)
1970-04-22
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Concentrating method for aqueous solution of alkali metal hydroxide
Legal Events
Date
Code
Title
Description
1972-03-15
PS
Patent sealed [section 19, patents act 1949]
1983-09-07
PCNP
Patent ceased through non-payment of renewal fee
