Abstract: The present disclosure provides for substituted epoxide modified sorbents and contactors, methods of using sorbents and contactors to capture CO2, structures including the sorbent, and systems and devices using sorbents and contactors to capture CO2. The present disclosure provides for sorbents and contactors that can include a CO2-philic phase and a support. The CO2-philic phase can include a modified amine polymer that is the reaction product of an amine and a substituted epoxide.

Abstract: The present disclosure provides for sorbents, methods of using sorbents and contactors to capture CO2, structures including the sorbent, and systems and devices using sorbents to capture CO2. The methods, systems, contactors, and sorbents of the present disclosure can be advantageous since they are robust and reduce the cost of capturing CO2, in particular from ambient air. The present disclosure provides for sorbents having a support and a CO2-philic phase that includes phosphite containing molecules, which leads to a sorbent that is effective for capturing CO2.

Abstract: A system used for, and a method for, removing carbon dioxide from a carbon dioxide laden gas mixture, the system comprising a group of carbon dioxide removal structures moving along a closed curve track. At one location along the track is located a desorption or regeneration box, into which each capture structure passes in order to be regenerated. The majority of the CO2 removal structures are fed ambient air, or an admixture of ambient air with a minor portion of a flue gas, and exhaust CO2-lean air. At least one selected such removal structure within each group, at a location immediately preceding its entry into the capture structure, is fed a flue gas comprising at least 4% CO2 by volume. Alternatively, a second capture structure at a location immediately preceding the location where the one selected capture structure is fed flue gas, is fed the exhaust stream from the selected removal structure.

Abstract: A system and method for, removing carbon dioxide from a carbon dioxide laden gas mixture, the system comprising a group of carbon dioxide removal structures moving along a closed curve track. At one location along the track is located a desorption or regeneration box, into which each capture structure passes in order to be regenerated. The majority of the CO2 removal structures are fed ambient air, or an admixture of ambient air with a minor portion of a flue gas, and exhaust CO2-lean air. At least one selected such removal structure within each group, at a location immediately preceding its entry into the capture structure, is fed a flue gas comprising at least 4% CO2 by volume. A method for removing carbon dioxide from the atmosphere is provided utilizing a system operating in the same manner as the preceding system.

Abstract: A system and method for, removing carbon dioxide from a carbon dioxide laden gas mixture, the system comprising a group of carbon dioxide removal structures moving along a closed curve track. At one location along the track is located a desorption or regeneration box, into which each capture structure passes in order to be regenerated. The majority of the CO2 removal structures are fed ambient air, or an admixture of ambient air with a minor portion of a flue gas, and exhaust CO2-lean air. At least one selected such removal structure within each group, at a location immediately preceding its entry into the capture structure, is fed a flue gas comprising at least 4% CO2 by volume. A method for removing carbon dioxide from the atmosphere is provided utilizing a system operating in the same manner as the preceding system.