Methods of sequestering CO2
First Claim
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1. A method of sequestering carbon dioxide, the method comprising:
- (i) contacting an alkaline-earth-metal-ion-containing salt water with CO2 from an industrial waste stream;
(ii) removing protons from said alkaline-earth-metal-ion-containing salt water by an electrochemical protocol, wherein the electrochemical protocol produces no chlorine gas;
(iii) subjecting the alkaline-earth-metal-ion-containing salt water to carbonate compound precipitation conditions to produce a man-made precipitated storage stable carbon dioxide sequestering product; and
(iv) disposing of the precipitated storage stable carbon dioxide sequestering product to sequester carbon dioxide.
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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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39 Claims
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1. A method of sequestering carbon dioxide, the method comprising:
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(i) contacting an alkaline-earth-metal-ion-containing salt water with CO2 from an industrial waste stream; (ii) removing protons from said alkaline-earth-metal-ion-containing salt water by an electrochemical protocol, wherein the electrochemical protocol produces no chlorine gas; (iii) subjecting the alkaline-earth-metal-ion-containing salt water to carbonate compound precipitation conditions to produce a man-made precipitated storage stable carbon dioxide sequestering product; and (iv) disposing of the precipitated storage stable carbon dioxide sequestering product to sequester carbon dioxide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification