Method for simultaneous removal and sequestration of CO2 in a highly energy efficient manner
First Claim
1. A system for removing and sequestering a preselected amount of carbon dioxide (CO2) from a gas having an original CO2 concentration, the system comprising:
- a reaction bed;
distribution means for introducing a gas having an original concentration of CO2 to the bed;
a CO2 solvent supplied to the bed;
chemical means disposed within the bed for removing a preselected amount of CO2 from the gas;
means for dissolving the removed, preselected amount of CO2 into the solvent; and
means for disposing of a portion of the solvent which contains the removed, preselected and dissolved CO2.
1 Assignment
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Accused Products
Abstract
A CO2 removal and sequestration system uses a limestone bed of coarse crushed limestone covering pipes which carry a flue gas. The pipes have spaced openings which permit flue gas to pass into the limestone bed. Water fills the bed to about {fraction (2/3 )} of the height of the limestone, which is higher than the depth of the pipes. The water flows through the bed at a predetermined rate. The bed is arranged as a series of parallel rows of beds with open channels between each pair of adjacent rows. The open channels are alternating water inlet and outlet channels. A flue gas delivery system includes headers and manifolds for distributing the flue gas at sufficient pressure to overcome existing water pressure at the pipe openings. The process includes the steps of removing CO2 from the flue gas in the bed, dissolving CO2 in the water in the bed, and then returning the water/CO2 to the ocean, river, lake or other area which may be used to store CO2.
84 Citations
20 Claims
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1. A system for removing and sequestering a preselected amount of carbon dioxide (CO2) from a gas having an original CO2 concentration, the system comprising:
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a reaction bed;
distribution means for introducing a gas having an original concentration of CO2 to the bed;
a CO2 solvent supplied to the bed;
chemical means disposed within the bed for removing a preselected amount of CO2 from the gas;
means for dissolving the removed, preselected amount of CO2 into the solvent; and
means for disposing of a portion of the solvent which contains the removed, preselected and dissolved CO2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20)
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13. An apparatus having a defined reaction bed for removing and sequestering CO2 from a gas, the apparatus comprising:
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a plurality of inlet channels having a defined length and height;
means for supplying water at a controlled flow rate into at least one inlet channel;
chemical means for removing CO2 from a gas having an original concentration of CO2, the chemical means being in fluidic contact with at least one inlet channel;
distribution means for distributing the gas so that the gas comes into contact with the chemical means;
a plurality of outlet channels having a defined length and height located proximate to the chemical means; and
means for transporting the water from the chemical means into at least one outlet channel, the means for transporting the water being in fluidic contact with the chemical means.
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Specification