Process of producing hydrogen and oxygen from H.sub.2 O in a the

Details Process of producing hydrogen and oxygen from H.sub.2 O in a the Process of producing hydrogen and oxygen from H.sub.2 O in a the

1974-12-30

1976-11-30

Stern, Edward

Chemistry of inorganic compounds

Oxygen or compound thereof

423541R, 423544, 423592, 423558, 423622, 423657, 423658, C01B 1300, C01B 102, C01B 105, C01B 108

Patent

active

039950123

ABSTRACT:
A method of producing hydrogen and oxygen by splitting water in a thermocical cycle, according to which in a first method stage a gas mixture of from 1 to 50 parts by volume of steam and 2 parts by volume of sulfur dioxide is reacted at a temperature within the temperature range of from 200.degree. to 400.degree. C with an oxide of one of the metals manganese, iron, cobalt, nickel, zinc or cadmium for forming a metal sulfate and for freeing hydrogen gas. Thereupon the hydrogen gas is in a manner known per se separated from the residual gas mixture and in a second method stage after conversion of the metal oxide to a metal sulfate, the metal sulfate for purposes of decomposition or disintegration and for forming a metal oxide, sulfur dioxide gas and oxygen gas, is heated to a temperature within the temperature range of from 700.degree. to 1000.degree. C. Thereupon the oxygen gas is separated from the sulfur dioxide gas in a manner known per se.

REFERENCES:
patent: 1969567 (1934-08-01), Lee
patent: 2927001 (1960-03-01), McCullough
patent: 3053626 (1962-09-01), Patterson
patent: 3802993 (1974-04-01), VON Fredersdorff
patent: 3839550 (1974-10-01), Wentorf, Jr.
C & EN Sept. 3, 1973, pp. 32 & 33.

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