Thermochemical water splitting: the reverse Deacon reaction and alternatives

Conference · Thu Jan 01 04:00:00 EST 1976 · Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States)

OSTI ID:7150052

Ulrichson, D L; Yeh, Y S

The reverse Deacon reaction is shown to require very high temperatures (1100/sup 0/K or higher) or a catalyst to obtain satisfactory reaction rates. If a high temperature is used, the reverse reaction is likely to occur as the products are cooled. The reverse reaction could be minimized by very rapid cooling but this would incur irreversible heat losses in addition to the heat required to drive the reaction. The work of separation and recycle is also very large for this reaction. Preliminary experimental work on the chlorination of magnesia and the hydrolysis of magnesium chloride indicates that both these reactions must be run as solid gas reactions. In addition, they must be run in such a way that diffusional limitations to the reaction rate are avoided. Successful demonstration of such a process may lead to a good alternate to the reverse Deacon reaction.

• Research Organization: Ames Lab., IA
• OSTI ID: 7150052
• Conference Information: Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Journal Volume: 21:3
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080102* -- Hydrogen-- Production-- Thermochemical Processes
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINATION
CHLORINE COMPOUNDS
DECOMPOSITION
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROLYSIS
LYSIS
MAGNESIUM CHLORIDES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
SOLVOLYSIS
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE
WATER