51 results about "Air capture" patented technology

A direct air capture (DAC) of CO2 system includes a reaction reactor having a solid, amine-functionalized sorbent configured to sequester CO2 from air; an in-situ dual-function device configured as a CO2 conversion reactor and an exchange fluid regeneration device; and the exchange fluid, recirculating between the reaction reactor and the dual-function device, configured to capture the sequestered CO2 from the solid sorbent in the reaction reactor and release the captured CO2 in the conversion reactor, the exchange fluid including one or more amino acids.

A direct air capture CO2 system includes a CO2 extraction reactor having a chamber defined by a wall; an air inlet formed in the wall; an air outlet formed in the wall; and housing units defining internal volumes, the housing units arranged within the chamber, at least some of the housing units having spherical and / or ellipsoidal shapes, each of the internal volumes at least partially filled with functionalized CO2 sorbent particles.

An impregnated product is disclosed comprised of a nonwoven material impregnated with a carbon capture composition. When contacted with a gas stream, the impregnated product is well suited for removing gaseous carbon components from the gas stream, such as carbon dioxide. The impregnated product can be used in a direct air capture process. For instance, an air stream can be fed over a surface of the impregnated nonwoven product in a counter-current manner for removing carbon dioxide from the air stream. The carbon capture composition can then be removed from the nonwoven for releasing and collecting the carbon dioxide. The nonwoven and the carbon capture composition can then be recycled and reused in the process.

Disclosed herein is an apparatus and method for providing a direct air capture (DAC) system of carbon dioxide to improve the energy efficiency, operability, and economic performance of DAC technologies based on multiple types of methods, including thermal swing adsorption (TSA), pressure swing adsorption (PSA), and moisture swing adsorption (MSA). In particular, disclosed herein is a DAC apparatus comprising a first water extraction unit, a process unit comprising a second water extraction unit, a carbon dioxide capture unit, and a water release unit. The present invention also provides a logic control system for a preconditioner of the proposed DAC apparatus, comprising a controller and one or more control elements in communication with a fluid stream, wherein the controller is configured to adjust the temperature, water content, or a combination thereof of the second fluid stream, the third fluid stream, or both to a predetermined range based on the cost of capturing carbon dioxide on a net removal basis.

Systems and methods are provided for integrating direct air capture of carbon dioxide with capture of carbon dioxide from a point source. The systems and methods can include exposing an adsorbent to a low CO2 content gas flow (e.g., air) at conditions similar to ambient conditions to perform an initial amount of sorption of CO2. The initial sorption results in a partially loaded sorbent having a first sorbent loading. The partially loaded sorbent can then be exposed to a flue gas and / or other gas flow that contains a higher CO2 content. This allows a second sorption step to be performed using a higher CO2 content gas, resulting in an additionally loaded sorbent having a second (higher) sorbent loading. The sorbed CO2 can then be desorbed from the sorbent.

The present application aims to provide a lean water composite alkanolamine absorbent for low-concentration CO2 capture, belonging to the technical field of green carbon capture, which is a composite system of mixed alkanolamine-organic physical solvent-water. By regulating the types and proportions of the components, the water content of the system and the solvent regeneration energy consumption are significantly reduced while ensuring high CO2 absorption capacity. The water content of the absorbent is not higher than 20%, and it exhibits good absorption performance under low partial pressure CO2 conditions. The desorption regeneration energy consumption is about 77% lower than that of the same proportion alkanolamine high water content MEA system (MEA:EG:H2O=0.2:0:9.8). In the absorption-desorption cycle process, the absorbent exhibits good cycle stability, and its CO2 absorption performance does not significantly attenuate after multiple cycles. The lean water composite alkanolamine absorbent is suitable for low-concentration CO2 separation application scenarios such as direct air capture.

Systems and methods for an atmospheric carbon dioxide removal system that includes a plurality of carbon capture containers, a plurality of fans, an air diverter, and a velocity stack. Each of the carbon capture containers has an outwardly facing side and an inwardly facing side with the inwardly facing side facing an enclosed space. The fans are disposed adjacent to the carbon capture containers. The fans are arranged to move air through the carbon capture containers in a first direction from the outwardly facing side into the enclosed space. The air diverter is disposed within the enclosed space and receives the air flowing in the first direction and redirects the air to flow in a second direction that is angled upwardly from the first direction. The velocity stack is disposed on top of the enclosed space and is configured to accelerate the flow of the air in the second direction.

Systems and methods of direct air capture are described. A method of fan speed control in a direct air capture (DAC) system includes actuating a first fan to produce a first airflow and a second fan to produce a second airflow. The first fan is disposed proximate to a first portion of the DAC system, and a plurality of adsorber panels are configured to be translated through the DAC system through at least the first portion and then subsequently through a second portion of the DAC system. The second fan is disposed proximate to the second portion of the DAC system, and a flow rate of the second airflow is less than the flow rate of the first airflow. Both the first airflow and the second airflow are configured to flow through the plurality of adsorber panels and be discharged through the first fan to an external environment.

The embodiment of the present application provides a method for directly capturing carbon dioxide from air. The method comprises the following steps: capturing carbon dioxide in air by an adsorber; performing first vacuumization in the adsorber after capturing carbon dioxide; introducing water vapor into the adsorber to increase the pressure in the adsorber and increase the temperature of the adsorbent in the adsorber, so as to desorb carbon dioxide; performing second vacuumization on the adsorber, and obtaining mixed gas formed by water vapor and carbon dioxide; and performing gas-liquid separation on the mixed gas to obtain carbon dioxide. The method reduces the regeneration energy consumption of the adsorbent and improves the concentration of the carbon dioxide product gas.

The present invention comprises: an enclosure having an air introduction unit and a discharge unit; an adsorption support body disposed inside the enclosure and including an adsorbent; a support unit including a plurality of rods disposed in the enclosure with both ends supported thereby, the rods being disposed in a plurality of rows so that the adsorption support body can be disposed via the rods; and an automatic replacement means provided in the enclosure to replace the adsorption support body. In addition, the present invention comprises: an enclosure having an air introduction unit and a discharge unit; an adsorption support body disposed inside the enclosure and including an adsorbent; a support unit including a plurality of rods disposed in the enclosure with both ends supported thereby, the plurality of rods being arranged in a plurality of rows so that the adsorption support body is disposed continuously via the plurality of rods; and a tension adjustment unit for adjusting the tension of the adsorption support body in at least one of the rods of the support unit.

The invention relates to a system for capturing at least one gas component from a gas stream, the system comprising: an adsorber section (2) for capturing the gas component from the gas stream using a granular sorbent material; a regeneration section (4) for receiving sorbent loaded with the gas component from the adsorber section (2) and for removing the captured gas component from the sorbent; a product section (8) for receiving and compressing the removed gas component; a transport section (6) for receiving regenerated sorbent from the regeneration section (4) and for providing the regenerated sorbent to the adsorber section (2); and a heat recovery system (12) for recovering thermal energy connected between the regeneration section (4) and the product section (8).

The present application relates to a kind of salt solution desorption direct air capture carbon adsorption material and its preparation and application, the material is prepared by the following method: (1) the ion exchange resin is weighed and placed in CuCl2 solution and is treated by first impregnation, filtration, washing, and metal-loaded ion exchange resin is obtained;(2) the metal-loaded ion exchange resin in step (1) is placed in NaOH solution and is treated by second impregnation, filtration, and direct air capture carbon adsorption material is obtained, that is, the target product.The direct air capture carbon adsorption material of the present application can adsorb and desorb CO2 under room temperature and normal pressure conditions.Due to acid-base neutralization and the synergistic effect of electrostatic attraction, low concentration CO2 in air reacts to be HCO3 ‑ Combined on coordination site.Because the coordination priority of Cl ‑ Is higher than HCO3 ‑ , desorption can be completed using salt solution, and the operation is simple, without additional energy consumption.CO2 adsorbed in the form of carbonate exists stably in solution phase, and has great potential in CO2 resource utilization.

A direct air capture (DAC) process for capturing CO2 from a stream of air by passing air through a capture unit comprising a sorbent structure The sorbent structure comprises an active component comprising sodium aluminate in an amount from 5 wt% and up to 40 wt% and a metal-containing support in an amount of at least 55 wt%, both based on the weight of the sorbent structure. The metal-containing support is selected from the group consisting of a metal alloy, metal oxide, metal-non-metal alloy, a ceramic material, and any combination thereof. The method further comprises capturing the carbon dioxide by the sorbent to provide a treated stream of air with less carbon dioxide exiting the capture unit.

Solid adsorbents based on amidine-containing aliphatic amine polymers with resistance to oxidative damage in air and water at elevated temperatures compared to the prior art is disclosed. The solid adsorbent exhibits a high porosity and reactivity for the adsorption of carbon dioxide (CO2) from ambient air and does not require a porous substrate material such as porous silica to generate said porosity and reactivity to or with CO2. The material is particularly useful as a CO2 adsorbent for Direct Air Capture (DAC) applications.

A phosphonium-based polymeric ionic liquid for moisture-swing direct air capture of carbon dioxide is disclosed. The polymeric ionic liquid comprises a styrene-based backbone and phosphonium groups covalently bonded to the backbone, each substituted with methyl, and bicarbonate counterions associated with the phosphonium groups. The polymeric ionic liquid adsorbs carbon dioxide under cyclic wet-dry conditions and exhibits a capture capacity of at least 500 μmol per gram. Methods of producing the polymeric ionic liquid and methods of capturing carbon dioxide using alternating humidity cycles are also disclosed.

A direct air capture system to remove atmospheric carbon dioxide is provided. The system may include a solid carbon dioxide sorbent and a thermal regeneration module that cycle an exchange fluid. The exchange fluid may include an amine with an affinity for carbon dioxide such that it removes carbon dioxide from the solid sorbent. The exchange fluid may be heated such as with water vapor to remove carbon dioxide from the exchange fluid such that it can be recycled back to the solid sorbent.

A direct air capture CO2 system includes a CO2 extraction reactor having a chamber defined by a wall; an air inlet formed in the wall; an air outlet formed in the wall; and shell units defining an internal volume arranged in the chamber, at least some of the shell units having a spherical and / or ellipsoidal shape, each internal volume being at least partially filled with functionalized CO2 adsorbent particles.

The invention relates to a drying apparatus (1) for regeneration of an adsorber material (15) by heating, in particular for reducing a carbon dioxide content in the adsorber material (15), preferably for use in a DAC (direct air capture) system (20) for removing carbon dioxide from ambient air, comprising a regenerator chamber (2) for accommodating the adsorber material (15) and a discharge device (3), connected to the regenerator chamber (2), for discharging gases released from the adsorber material (15), in particular carbon dioxide and / or water vapor, from the regenerator chamber (2).

A direct air capture of CO2 system includes a first reaction reactor configured to sequester CO2 from ambient air via a fluid sorbent including one or more amino acids; and an in-situ bipolar membrane electrolyzer, connected to the first reaction reactor, configured to both (a) regenerate the fluid sorbent via chemical removal of CO2 from the fluid sorbent and (b) react the removed CO2 to a non-CO2 end-product.

A device for passive atmospheric carbon dioxide collection comprises a vessel with an opening, a sorbent regeneration system, and a lid. Attached to the vessel is a sorbent structure featuring multiple coaxial ducts, each containing sorbent material and a central void along a shared axis. This structure transitions between a collection configuration-where the ducts extend through the vessel's opening, exposing the sorbent material to airflow for CO2 capture and a release configuration, where the ducts nest within each other inside the vessel, allowing the regeneration system to release the captured CO2, forming an enriched gas. An expansion mechanism facilitates movement between these configurations. The device may include features such as ducts made of sorbent material, permeable duct sections for airflow, directional vanes to enhance CO2 capture, and a microcontroller with sensors to optimize operation.

This invention relates to the field of indoor air purification technology, specifically disclosing a high-efficiency carbon dioxide air capture system for indoor air purification. The system includes: predicting concentration trends based on historical CO2 concentration time-series data using an additive Holt-Winters exponential smoothing model; performing a two-dimensional interval verification combining the human comfort concentration range and the efficient adsorption range of LiOH to determine whether an adsorption command is triggered; calculating the theoretical adsorption capacity and instantaneous reaction rate using a thermodynamic-kinetic coupling model; determining the initial dosage based on the total CO2 release; correcting the initial dosage through historical data correlation analysis to avoid the risk of clumping; and finally, calling historical addition time data to calculate the effective duration and adsorption risk duration to determine the timing of LiOH addition. This achieves efficient CO2 capture and precise CO2 concentration control, improves the utilization rate of LiOH materials, and reduces the risk of application.

This invention discloses a non-contact drone recovery system and method, relating to the field of drone material recovery technology. The non-contact drone recovery system includes an intelligent lifting terminal and a recovery pod. The intelligent lifting terminal, deployed at the recovery point, includes an airship module, a tethering rope, and a first docking module. The first docking module can rise from the recovery point to a preset height under the buoyancy of the airship module. The recovery pod, mounted on the drone, includes a second docking module and a locking mechanism. The second docking module has a capture chamber. This invention achieves high-tolerance aerial capture by having the drone identify the first docking module and adjust its position, allowing the tethering rope to pass through the side opening of the second docking module into the capture chamber, and guiding the first docking module to fall into the capture chamber under gravity. This significantly reduces the requirements for drone hovering accuracy and improves the safety and reliability of the recovery operation.

Implementations of the disclosed subject matter provide a method for operating a direct air capture (DAC) process including a fractal network layout. The method may include providing a plurality of base units, each base unit may include a plurality of DAC modules and a primary level node. Each primary level node may be connected to each of the DAC modules within the base unit by a process connection and / or a utility connection. A secondary level unit may include the plurality of base units. The secondary level unit may include a secondary level node which may be connected to each of the primary level nodes by process and / or utility connections. The method may include receiving an air stream at each of the DAC modules, contacting the air stream with a sorbent material, generating and transporting an outlet stream comprising CO2 from each of the DAC modules to the secondary level node.

The present invention relates to a composite electrode for electrochemical direct air capture and a method for preparing the same. The composite electrode is an xR−yGPL electrode, wherein R represents a redox active molecule, GPL represents a gas permeation layer, x represents the loading of the redox molecule, y represents the loading of the gas permeation layer, wherein x=2~10 mg cm −2 ,y=0.2~1 mg cm −2 ; the redox molecule contains two pyridine groups. The present invention first proposes a method for preparing a composite electrode for electrochemical direct air capture. The composite electrode inhibits the diffusion of O2 to the surface of the redox molecule, inhibits the oxygen-induced side reaction, and enhances the capture stability of the redox molecule in the oxygen-rich environment. Under the condition of 400 ppm CO2 and 21% O2, the direct capture CO2 capacity of the composite electrode reaches 3 mmol g –1 分子 ; under the condition of 70% relative humidity (70% RH), the faradic efficiency can also reach more than 50%.

A direct air capture system for capturing carbon dioxide (CO2) from atmospheric air includes at least one contactor wall, a liquid distribution system, and a regeneration system in fluid communication with the liquid distribution system. The at least one contactor wall includes a plurality of gas-liquid contactors positioned side by side. Each gas-liquid contactor of the plurality of gas-liquid contactors includes a housing, at least one inlet, at least one outlet, at least one packing section disposed between the at least one inlet and the at least one outlet, and a fan. The liquid distribution system includes at least one liquid collection device. The at least one liquid collection device includes a lower liquid collector that includes a floor positioned beneath the packing sections of the plurality of gas-liquid contactors, and a plurality of walls extending upwardly from the floor.

The present invention pertains to a carbon dioxide capture system (100), comprising a frame (200), a fixed structure (102) surrounding and attached to the frame (200); a first adsorption cell (218) and a second adsorption cell (218) disposed in frame (200), the first adsorption cell (218) and the second adsorption cell (218) each including an inlet at a first open end (308) and an outlet at a second open end (306); an upper arm (602) coupled to the fixed structure (102); a lower arm (604) coupled to the fixed structure (102) and positioned on the opposite side of the frame (200) from the upper arm (602); an upper lid (214) coupled to the upper arm (602) and movable between an open position and a closed position and a lower lid (214) coupled to the lower arm (604) and movable between an open position and a closed position in which the upper lid (214) and the lower lid (214) seal the first adsorption cell (218) for desorption, further comprising a first steam piping (216) connected to the upper lid (214) for providing steam via the upper lid (214) to the first adsorption cell (218), further comprising a second steam piping (222) connected to the lower lid (214) for extracting steam and carbon dioxide via the lower lid (214) from the first adsorption cell (218), where either by rotation of the frame (200) of by movement of the arms (601, 604) the steam piping (216, 222) is connected to a adsorption cells (218).

This invention relates to the field of low-carbon energy system control technology, and particularly to a time-decoupled, multi-element carbon capture synergistic flexible control method and system. The method includes: constructing a dynamic load model for modular direct air capture using a time-decoupling approach, achieving real-time response reduction characteristics in the adsorption stage and batch constraint translation characteristics in the regeneration stage; constructing a continuous, flexible, and adjustable load model for the regeneration tower based on decoupling technology for post-combustion carbon capture solvent storage; establishing a multi-level synergistic control strategy based on green electricity supply gradients to construct a dynamic priority order for direct air capture and post-combustion carbon capture; and establishing a full-cycle synergistic optimization model considering carbon assets, with the goal of minimizing the system's net cost parameters, to solve the global operation strategy for modular direct air capture and post-combustion carbon capture. This invention effectively solves the problem of how to transform the carbon capture process into a flexibly adjustable load and achieve synergistic optimization with green electricity.

Cryogenic removal of carbon dioxide from the atmosphere, or CryoDAC (Cryogenic Direct Air Capture), uses extremely low temperatures to convert atmospheric CO2 into a frozen solid while other components of air such as oxygen and nitrogen remain as gases. Air from the atmosphere is passed through a recuperative heat exchanger to cool the air to a temperature slightly above the deposition point of CO2. The cooled air is then passed over a deposition surface chilled to a temperature below the deposition point of CO2. Carbon dioxide in the air transitions from gas to solid form upon contact with the deposition surface. The frozen CO2 is collected and stored. The cold air with CO2 removed is passed back through the recuperative heat exchanger to cool incoming air and is then returned to the atmosphere. The deposition surface may be cooled by a cryogenic refrigerator.

A direct air carbon capture catalyst system wherein using direct air capture, combined with electrolysis of water and molecular separation, leftover carbon dioxide may undergo a hydrogenation process in a catalyst reactor to produce a desired hydrocarbon as a product, while storing other components of air, such as nitrogen and oxygen separated in earlier steps as side products.

According to various embodiments, a direct air capture system includes: a wind turbine that includes at least one blade that includes one or more openings, wherein, in operation, first air flows across the at least one blade, causing the wind turbine to generate electrical energy, and causing the one or more openings to receive second air; a conduit that fluidly couples the one or more openings to a carbon dioxide (CO2) adsorption chamber that includes one or more amine-based CO2 adsorbers, wherein, in operation, the CO2 absorption chamber receives the second air via the one or more openings; and a carbon desorption apparatus that desorbs CO2 from the one or more amine-based CO2 adsorbers.