Integrated oxygen generation and carbon dioxide absorption method apparatus and systems
First Claim
1. A method for producing oxygen and absorbing carbon dioxide in a single operation comprising providing a solution comprising a chemical species capable of reacting with carbon dioxide to form an insoluble precipitate and an oxygen source and a redox partner, said oxygen source and said redox partner reactable to form oxygen;
- introducing carbon dioxide into said solution;
contacting said carbon dioxide with said chemical species capable of reacting with carbon dioxide; and
precipitating said insoluble precipitate from said solution.
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Accused Products
Abstract
A method for producing oxygen and absorbing carbon dioxide in a single operation using a solution that contains an oxygen source and a redox partner that can react to form oxygen and a chemical species that can form an insoluble carbonate to precipitate and chemically store carbon dioxide. Carbon dioxide is introduced into the solution and the carbonate precipitates as the oxygen is generated. In particular, the invention uses an aqueous solution of permanganate and hydrogen peroxide that react in the presence of a catalyst to produce oxygen and manganese (II) ions. Carbon dioxide gas introduced into the solution reacts with the manganese (II) ions to precipitate manganese carbonate. Other cations capable of reacting with carbon dioxide to form an insoluble carbonate, for example calcium, barium and magnesium, may also be added to the solution to precipitate carbonate salts. Calcium permanganate may used as a source of both calcium and permanganate.
106 Citations
39 Claims
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1. A method for producing oxygen and absorbing carbon dioxide in a single operation comprising
providing a solution comprising a chemical species capable of reacting with carbon dioxide to form an insoluble precipitate and an oxygen source and a redox partner, said oxygen source and said redox partner reactable to form oxygen; -
introducing carbon dioxide into said solution;
contacting said carbon dioxide with said chemical species capable of reacting with carbon dioxide; and
precipitating said insoluble precipitate from said solution. - View Dependent Claims (2)
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3. A method for producing oxygen and absorbing carbon dioxide in a single operation comprising:
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providing a solution comprising a permanganate salt, water and hydrogen peroxide;
allowing said permanganate salt, water and hydrogen peroxide to react to produce manganese (II) ion and oxygen in the presence of a catalyst;
introducing carbon dioxide gas into said solution;
contacting said carbon dioxide with said manganese (II) ion; and
allowing manganese carbonate to precipitate. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for producing oxygen and absorbing carbon dioxide comprising:
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a tank for receiving an aqueous solution, comprising a material that does not catalyze the reaction of permanganate ion with hydrogen peroxide;
a catalyst for reacting a permanganate salt with hydrogen peroxide to produce oxygen positioned in said tank to contact the aqueous solution when added to said tank;
a carbon dioxide inlet in said tank positioned to introduce carbon dioxide into the solution when added to said tank; and
an oxygen outlet in said tank positioned to allow oxygen gas to escape. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A system for generating power comprising:
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a power generator for generating power or electricity, and an integrated oxygen generator/carbon dioxide absorber, said integrated oxygen generator/carbon dioxide absorber providing oxygen to said power generator and absorbing waste carbon dioxide from said power generator;
said integrated oxygen generator/carbon dioxide absorber comprising;
a tank comprising a material that does not catalyze the reaction of permanganate ion with hydrogen peroxide, an aqueous solution comprising a permanganate salt and hydrogen peroxide contained in said tank, a catalyst in contact with said aqueous solution for catalyzing the reaction of said permanganate salt with said hydrogen peroxide to produce oxygen, a carbon dioxide inlet in said tank positioned to introduce carbon dioxide into said aqueous solution and an oxygen outlet in said tank positioned to allow oxygen gas to escape from said tank. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification