Thermochemical process for the production of hydrogen and oxygen from water
AssigneeRheinische Braunkohlenwerke AG
InventorFriedrich F. Behr
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Abstract
In a thermochemical circulation process, hydrogen and oxygen are obtained from water wherein sulfuric acid and the paraffin hydrocarbon corresponding to the olefin used are formed from water, sulfur dioxide and a low-molecular weight olefin, particularly ethylene; the sulfuric acid is decomposed into water, sulfur dioxide and oxygen; the paraffin hydrocarbon is decomposed into the corresponding olefin and hydrogen; and after the removal of the hydrogen and oxygen, the remaining separation products are recycled into the first reaction.
Claims5
A process for the production of hydrogen and oxygen from water in a thermochemical, closed circulation process comprising:
- a. reacting sulfur dioxide, water and an olefin in the presence of catalytically active quantities of iodine in an exothermic reaction at temperatures of about 200.degree.-350.degree. C and pressures of about 20-300 atmospheres to produce sulfuric acid and a paraffin hydrocarbon corresponding to said olefin;
- b. decomposing the sulfuric acid at temperatures of about 600.degree.-950.degree. C into sulfur dioxide, water and oxygen;
- c. decomposing said paraffin hydrocarbon into hydrogen and the corresponding olefin at temperatures of about 500.degree.-750.degree. C;
- d. recycling into the exothermic reaction of step (a) the sulfur dioxide and water formed in step (b) and the olefin formed in step (c);
- and
- e. collecting and removing hydrogen and oxygen formed in steps (c) and (b), respectively.
Dependencies are inferred from the claim text.