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Methods of sequestering CO2

  • US 7,887,694 B2
  • Filed: 12/24/2008
  • Issued: 02/15/2011
  • Est. Priority Date: 12/28/2007
  • Status: Active Grant
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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