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US 2005/0238563 A1Published application
Method for sequestering carbon dioxide
OwnerT. Eighmy, Kevin Gardner +1inventors
InventorsT. Eighmy, Kevin Gardner, Thomas Seager
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Abstract
A method for permanently sequestering CO2 by bringing a gas containing the CO2, which may be the atmosphere, into contact with alkaline waste materials containing Ca to form a carbonate that is stable and environmentally benign.
Claims8
A method for sequestering CO2 comprising:
- bringing a gas containing CO2 into contact with an alkaline waste material containing Ca-bearing phases;
- and allowing the CO2 to react with the Ca to produce CaCO3.
A method for sequestering CO2 comprising:
- humidifying a gas containing CO2;
- adding water to an alkaline waste material containing Ca-bearing phases;
- bringing the gas into contact with the waste material;
- and
- allowing the CO2 to react with the Ca to produce CaCO3.
2 more elements
Dependencies are inferred from the claim text.