Method for extracting and sequestering carbon dioxide

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United States of America Patent

PATENT NO 6890497
APP PUB NO 20010022952A1
SERIAL NO

09759781

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Abstract

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A method and apparatus to extract and sequester carbon dioxide (CO2) from a stream or volume of gas wherein said method and apparatus hydrates CO2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not limited to, carbonates of alkali metals and alkaline earth metals, preferably carbonates of calcium and magnesium. Waste products are metal cations and bicarbonate in solution or dehydrated metal salts, which when disposed of in a large body of water provide an effective way of sequestering CO2 from a gaseous environment.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LAWRENCE LIVERMORE NATIONAL SECURITY, LLCLIVERMORE, CA1121

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caldeira, Kenneth G Livermore, CA 52 296
Rau, Gregory H Castro Valley, CA 2 180

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