REMOVAL OF CARBON DIOXIDE FROM AIR
3 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to methods for removing CO2 from air, which comprises exposing sorbent covered surfaces to the air. The invention also provides for an apparatus for exposing air to a CO2 sorbent. In another aspect, the invention provides a method and apparatus for separating carbon dioxide (CO2) bound in a sorbent.
212 Citations
132 Claims
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1-115. -115. (canceled)
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116. :
- A process for removing CO2 from the air, comprising the steps of;
(a) passing the air in contact with a first CO2 sorbent to absorb CO2 from the air; (b) passing the CO2 sorbent from step (a) in contact with an ion exchange resin to absorb CO2 from the first CO2 sorbent; (c) contacting the ion exchange resin from step (b) with a second CO2 sorbent to absorb CO2 from the ion exchange resin; and (d) recovering the second CO2 sorbent via thermal swing or pressure swing, or electrolytically. - View Dependent Claims (117)
- A process for removing CO2 from the air, comprising the steps of;
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118. :
- An apparatus for recovering CO2 from the air, comprising in combination;
(a) a device in which the air is contacted with a first CO2 sorbent whereupon CO2 is absorbed from the air; (b) a device in which the first CO2 sorbent is contacted with an ion exchange resin whereupon CO2 is absorbed from the first CO2 sorbent; (c) a device in which the ion exchange resin is contacted with a second CO2 sorbent wherein CO2 is absorbed from the ion exchange resin; and (d) a device in which the second CO2 sorbent is recovered via thermal swing or pressure swing, or electrolytically. - View Dependent Claims (119)
- An apparatus for recovering CO2 from the air, comprising in combination;
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120. :
- A method of enhancing flux of carbon dioxide from the atmosphere into seawater which comprises raising the alkalinity of the seawater by removing anions other than OH−
, HCO3−
and CO3−
from the seawater. - View Dependent Claims (121, 124, 125)
- A method of enhancing flux of carbon dioxide from the atmosphere into seawater which comprises raising the alkalinity of the seawater by removing anions other than OH−
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122. :
- A method of enhancing flux of carbon dioxide from the atmosphere to seawater which comprises raising the alkalinity of seawater by electrolytically splitting a salt into an acid/base pair with the resulting cations being added to the seawater.
- View Dependent Claims (123)
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126. :
- An apparatus for the capture of CO2 from the atmosphere comprising an anionic membrane exposed to a flow of air.
- View Dependent Claims (127)
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128. :
- The method for the capture of CO2 from air which comprises exposing all anionic membrane to a flow of air.
- View Dependent Claims (129)
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130. :
- A method for enhancing contact between a trace gas in a gas stream and a liquid or solid sorbent in which sorbent covered surfaces are created in an open and/or reticulated cell foam with flow channels that are large relative to a pore size of the foam and that guide a majority of gas flow along low resistance pathways through layers of the foam, and wherein the open cell foam is filled predominantly with gas and wherein gas volumes inside the foam are interconnected with each other and are connected to the gas flow in the channels passing through the foam, and continuously or intermittently mixing the gas flow through the channels with gas flow that moves through the bulk volume of the foam.
- View Dependent Claims (131, 132)
Specification