EXTRACTION AND SEQUESTRATION OF CARBON DIOXIDE
First Claim
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1. A system for removing carbon dioxide from a fluid, comprising passing a stream of the fluid in contact with a sorbent to absorb and concentrate carbon dioxide from the fluid stream;
- releasing the carbon dioxide from the sorbent; and
delivering the carbon dioxide for use in a secondary process.
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Abstract
The present disclosure provides a method and apparatus for extracting carbon dioxide (CO2) from a fluid stream and for delivering that extracted CO2 to controlled environments for utilization by a secondary process. Various extraction and delivery methods are disclosed specific to certain secondary uses, included the attraction of CO2-sensitive insects, the ripening and preservation of produce, and the neutralization of brine.
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Citations
55 Claims
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1. A system for removing carbon dioxide from a fluid, comprising passing a stream of the fluid in contact with a sorbent to absorb and concentrate carbon dioxide from the fluid stream;
- releasing the carbon dioxide from the sorbent; and
delivering the carbon dioxide for use in a secondary process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- releasing the carbon dioxide from the sorbent; and
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9. A method for removing carbon dioxide from a gas, comprising:
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bringing said gas in contact with a resin contained in a plurality of chambers, wherein a plurality of chambers are connected in series; wetting said resin with water, wherein the water enters a first chamber and exits through a last chamber; collecting water vapor and carbon dioxide from said resin; separating said carbon dioxide from said water vapor; and delivering the carbon dioxide for use in a secondary process. - View Dependent Claims (10, 11, 12)
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- 13. A system for utilization of carbon dioxide that is substantially carbon neutral, comprising a carbon dioxide capture device that collects carbon dioxide from a fluid stream produced by a process that utilizes carbon dioxide, wherein the carbon dioxide capture device delivers the captured carbon dioxide for utilization by the process.
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15. A method of creating tradable carbon credits which comprises extracting CO2 from ambient air at a location adjacent or remote from where the CO2 is generated, using sorbent, selling, trading or transferring the resulting CO2 credits to a third party, and using the extracted CO2 in a secondary process.
- 16. A method for luring CO2 sensitive insects toward a specific location where a moisture sensitive CO2 sorbent that is partially or fully loaded with CO2 is exposed to moisture usually in excess of that present in the ambient air at the location.
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22. An apparatus for extracting a gaseous contaminant from a gas stream using a sorbent employing a humidity swing and for distilling a brine, comprising:
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a sorbent for capturing the contaminant; a capture unit, wherein the sorbent is exposed to the gas stream and becomes substantially saturated with the contaminant; an evaporation unit, wherein a brine is evaporated forming a concentrated brine and water vapor, and wherein the sorbent is brought in contact with the water vapor causing the sorbent to become substantially depleted of the contaminant according to a humidity swing; and a condensation unit, wherein the water vapor is separated from the contaminant. - View Dependent Claims (23, 24, 52, 53, 54, 55)
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25. An apparatus for stabilizing the level of carbon dioxide in an enclosed environment, comprising:
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a filter unit attached to said enclosed environment, containing a sorbent material for carbon dioxide capture; and a regenerating system for regenerating the sorbent material at least in part. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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- 33. A method for extracting carbon dioxide from a gas comprising bringing a stream of the gas in contact with a sorbent, releasing the carbon dioxide from the sorbent to create a carbon dioxide-enriched gas mixture, and bringing the enriched gas mixture in contact with an aqueous solution, wherein the aqueous solution absorbs carbon dioxide from the gas mixture.
- 43. A method for adding calcium bicarbonate to seawater without changing the alkalinity of the water, comprising using a sorbent that employs a humidity swing to extract carbon dioxide from the air resulting in a gas mixture, precipitating carbonic acid from the gas mixture to dissolve an amount of limestone, forming calcium bicarbonate, and depositing the calcium bicarbonate in the seawater with any remaining carbonic acid.
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45. A method of stabilizing sorbent CO2 levels in storage containers of fresh produce, comprising recovering excess CO2 from the storage containers using a sorbent for CO2.
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46. A method for removing a gaseous contaminant from a gas stream, comprising
placing said gas stream in contact with a sorbent, wherein the contaminant from said gas stream becomes loaded on said sorbent; -
releasing the gas from said substrate by use of a humidity swing;
wherein the humidity swing is performed by evaporating a brine to form concentrated brine and water vapor, and bringing the water vapor in contact with the loaded sorbent;and condensing the water vapor to separate the water vapor from the contaminant. - View Dependent Claims (47, 48, 49, 50, 51)
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Specification