Thermoelectrochemical cyclical process for production of hydroge

Details Thermoelectrochemical cyclical process for production of hydroge Thermoelectrochemical cyclical process for production of hydroge

1977-04-06

1978-03-21

Meros, Edward J.

Chemistry of inorganic compounds

Oxygen or compound thereof

204129, 423648R, C01B 1302, C01B 102

Patent

active

040804364

ABSTRACT:
A process for producing hydrogen and oxygen from water in a cyclical process wherein aqueous sulfuric acid, containing hydrogen bromide, is electrolyzed to form hydrogen and bromine. Bromine is reacted with sulfur dioxide and water into sulfuric acid and hydrogen bromide. The hydrogen bromide is separated from the sulfuric acid and recycled into the electrolysis. The sulfuric acid is thermally cracked to form sulfur dioxide, water and oxygen. Sulfur dioxide is recycled and combined with bromine for completion of the reaction cycle.

REFERENCES:
patent: 3888750 (1975-06-01), Brecher
patent: 3932599 (1976-01-01), Schulten et al.
"A Hydrogen-Energy System", copyright American Gas Association, 1973, pp. III-42 to III-68.
"Hydrogen Sought via Thermochemical Methods", C & EN, Sept. 3, 1973, pp. 32 and 33.
Pangborn et al. "Hydrogen Energy Theme Conference 1974" pp. 499-515.

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