METHODS OF SEQUESTERING CO2
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Abstract
Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include precipitating a storage stable carbon dioxide sequestering product from an alkaline-earth-metal-containing water and then disposing of the product, e.g., by placing the product in a disposal location or using the product as a component of a manufactured composition. Also provided are systems for practicing methods of the invention.
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Citations
44 Claims
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1-20. -20. (canceled)
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21. A method of sequestering carbon dioxide from a gaseous waste stream of an industrial plant, comprising:
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a) charging brine with the gaseous waste stream to produce a CO2-charged solution; b) producing a slurry from the CO2-charged solution, wherein the slurry comprises carbonates and/or bicarbonates; and c) pumping the slurry underground. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method of sequestering carbon dioxide from a gaseous waste stream of an industrial plant, comprising:
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a) preparing a sodium hydroxide solution in an electrochemical process; b) charging brine with the gaseous waste stream to produce a CO2-charged solution; and c) using the sodium hydroxide solution in a process adapted to produce a precipitate comprising a metal carbonate, metal bicarbonate, or combination thereof from the CO2-charged solution.
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44. A method of sequestering carbon dioxide from a gaseous waste stream of an industrial plant, comprising:
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a) preparing a sodium hydroxide solution in an electrochemical process; b) charging seawater with the gaseous waste stream to produce a CO2-charged solution; and c) using the sodium hydroxide solution to produce a precipitate comprising a metal carbonate, metal bicarbonate, or combination thereof, from the CO2-charged solution.
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Specification