Process for the production of hydrogen and oxygen from water. [iron and chlorine compounds]

Patent · Tue Mar 20 04:00:00 EST 1979

OSTI ID:6281258

Knoche, K F; Cremer, H; Steinborn, G

A multi-phase thermochemical circulating process for producing hydrogen and oxygen from water is described, using the system of iron and chlorine compounds. Hydrogen is released by the reaction of iron(II)-oxide with water vapor and the oxygen by the reaction of chlorine with water vapor, iron(II)-oxide or iron (II, III)-oxide. Intermediately-formed iron (II)-chloride is hydrolyzed with water vapor to iron(II)-oxide in a multi-stage reaction at a gradually raised temperature, whereby in the hydrolysis the formation of metallic iron or of iron(II, III)-oxide is avoided.

• Assignee: Rheinische Braunkohlenwerke Aktiengesellschaft
• Patent Number(s): US 4145402
• OSTI ID: 6281258
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080102* -- Hydrogen-- Production-- Thermochemical Processes
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE
CRYOGENIC FLUIDS
DECOMPOSITION
ELEMENTS
FLUIDS
HALOGENS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROLYSIS
IRON COMPOUNDS
IRON OXIDES
LYSIS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PRODUCTION
SOLVOLYSIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WATER