METHODS OF SEQUESTERING CO2
2 Assignments
0 Petitions
Accused Products
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.
167 Citations
40 Claims
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1-20. -20. (canceled)
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21. A method, comprising:
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treating at least a portion of flue gas emitted from a cement plant, wherein said flue gas comprises carbon dioxide, with a proton removing agent to produce a solution comprising carbonate ions; treating said solution with alkaline-earth-metal-ions to produce a precipitate comprising carbonate; delivering at least a portion of said precipitate to said cement plant as a feedstock. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method, comprising:
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treating at least a portion of flue gas emitted from a cement plant, wherein said flue gas comprises carbon dioxide, with a hydroxide from an electrochemical cell to produce a solution comprising carbonate ions; treating said solution with alkaline-earth-metal-ions to produce a precipitate comprising carbonate; delivering at least a portion of said precipitate to said cement plant as a feedstock. - View Dependent Claims (34, 35, 36, 37, 38)
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39. An integrated plant, comprising:
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a cement plant emitting flue gas comprising carbon dioxide; a gas conveyer to convey said flue gas from said cement plant to a precipitation plant; and said precipitation plant configured to treat said flue gas with a proton removing agent to produce a solution comprising carbonate ions and to treat said solution with alkaline-earth-metal-ions to produce a precipitate comprising carbonate. - View Dependent Claims (40)
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Specification