Physical separation and sequestration of carbon dioxide from the exhaust gases of fossil fuel combustion
OwnerBert ZAUDERERinventor
Life of this patent
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Abstract
Methods are provided for physically removing all the carbon dioxide from the combustion products of solid, liquid, and gaseous fossil fuels. The combustors operate without excess air to maximize the carbon dioxide at the exhaust, which is compressed with the nitrogen and mixed with pressurized water to dissolve the carbon dioxide in a chamber from which the nitrogen gas is removed. The solution is drained into a second lower pressure chamber from which the carbon dioxide re-evolves as a gas, which is then pressurized for sequestration in limestone formations as calcium bicarbonate. The water is recycled to repeat the separation process, and depressurization of the two gases recovers most of the compression energy.
Claims10
A method for physically removing all carbon dioxide from combustion products of solid, liquid, and gaseous fossil fuels in energy systems, primarily electric power plants that contain components, including one or more of furnaces, boilers, gas turbines, and heat engines, and sequestering the separated carbon dioxide with water to form carbonic acid that when pressurized and injected into underground limestone formation will assure its permanent sequestration as calcium carbonate.
Dependencies are inferred from the claim text.