276 results about "Air capture" patented technology

A direct air capture (DAC) system for capturing carbon dioxide (CO2) from a dilute gas source includes a gas-liquid contactor subsystem and a wash water regeneration subsystem. The gas-liquid contactor subsystem includes a capture section, a wash section, and at least one fan to produce a CO2-rich capture solution in the capture section and a used wash water stream in the wash section. The wash water regeneration subsystem is in fluid communication with the at least one gas-liquid contactor subsystem. The wash water regeneration subsystem receives at least a portion of the used wash water stream, regenerates the wash water stream, and flows the regenerated wash water stream to the wash section. The DAC system can include a capture solution regeneration subsystem receiving at least a portion of the CO2-rich capture solution, regenerate the CO2-rich capture solution, and flow the regenerated CO2 capture solution to the capture section.

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 (DAC) facility for capturing carbon dioxide (CO2) from atmospheric air is disposed on a plot of land having a prevailing wind direction and includes at least one contactor wall formed from a plurality of gas-sorbent contactors positioned side by side and a regeneration facility in communication with the plurality of gas-sorbent contactors The at least one contactor wall is disposed on the plot of land and extends along a wall axis parallel to the prevailing wind direction. Each gas-sorbent contactor of the plurality of gas-sorbent contactors includes a housing including a plurality of structural members; at least one air inlet and at least one air outlet;  a gas-sorbent interface; and at least one fan. The regeneration facility is configured to process the CO2-rich sorbent and to regenerate the CO2-rich sorbent to form a regenerated sorbent for the plurality of gas-sorbent contactors.

An integrated system for adsorbing carbon dioxide (CO2) in the air is described. The system includes: an adsorber that adsorbs the CO2 from the air using a sorbent; and a desorber, coupled to the adsorber, that desorbs the adsorbed CO2 from the sorbent (e.g., in an energy-efficient manner, such as without using steam) into an output of the system. In contrast with other approaches, the system may continuously move the sorbent, as an ensemble, through the system. Thus, the system may concurrently (and continuously) perform adsorption and desorption. Moreover, the sorbent may include a cost-effective and robust free-standing bulk solid. This may allow the sorbent to be used in multiple cycles or transits through the system. Furthermore, after the multiple cycles, the sorbent may be replaced while the system is operating, and the used sorbent may be recycled for subsequent reuse in the system.

A system includes a sensor at a first location proximate a polluting system to collect environmental data of a first type and an energy consumption monitoring platform at the first location to generate energy consumption data associated with the polluting system. The system includes a controller coupled to the sensor and the monitoring platform to direct communication of environmental data and energy consumption data to a remote computing server. A direct air capture (DAC) system at a second location removes a selected pollutant from ambient air and isolates a concentrated form of the pollutant as a raw material. A derivative product creation (DPC) system at a third location produces a derivative product from the raw material. The remote computing system accumulates pollutant credits based on removal of the selected pollutant by the DAC system and dissipates pollutant credits based on some of the energy consumption data.

A direct air carbon capture filter and a method. The direct air carbon capture filter (200a, 200b) includes a porous material (202) that removes solid particulates from the air; and a sorbent (204), attached to the porous material (202), that removes carbon dioxide from the air. The method (400) includes the processing of the direct air carbon capture filter (200a, 200b), where the processing is at least one of releasing of CO2 from the direct air carbon capture filter (200a, 200b), a disposing of the direct air carbon capture filter (200a, 200b), or a repurposing of the direct air carbon capture filter (200a, 200b). The unit includes a heat source to release the CO2 from the direct air carbon capture filter (200a, 200b) and a fan to direct the CO2.

The present invention relates to the use of a mycelium of a mycelium-forming fungal culture as a sorbent in a CO2 separation device, in particular a direct air capture system.

The invention relates to an anti-riot capturing net gun unmanned aerial vehicle with multi-angle capturing capability. The unmanned aerial vehicle comprises a flight control unit, a sensing prediction unit, a strategy generation unit, an execution control unit and a vector emission unit. The flight control unit is used for autonomously controlling the flight attitude and trajectory of the unmanned aerial vehicle and outputting flight attitude parameters and trajectory data; the perception prediction unit combines the parameters with the multi-modal sensor data to identify the target object and predict the motion trail of the target object; the strategy generation unit generates an optimal interception window and direction and outputs an interception direction instruction and interception time sequence information; the execution control unit controls a target steering cabin in the vector transmitting unit based on the information, and transmits a transmitting control instruction in a specified time window; and the vector transmitting unit adjusts the direction of the cabin body according to the instruction and transmits a net gun to realize air capture of a high-dynamic target. The unmanned aerial vehicle has high flexibility and multi-angle quick response capability, and is suitable for target control and capture in a complex environment.

Fabricating a composite for direct air capture of carbon dioxide includes soaking an activated carbon material in an aqueous solution that includes potassium carbonate to yield an infused activated carbon material, removing the infused activated carbon material from the aqueous solution, drying the infused activated carbon material to yield a dried activated carbon material, and equilibrating the dried activated carbon material in air for a length of time, thereby increasing the porosity of the dried activated carbon material to yield the composite for direct air capture of carbon dioxide.

A modular structure accommodating structured sorbent in a parallel plate arrangement for the separation of gases, such as the removal of CO2 from air in a direct air capture process is provided. The modular structure includes individual units which act as support structures for the sorbent, and the individual units can be assembled into a larger bed of arbitrary dimensions. The sorbent includes parallel plates through which fluid can flow in many directions (at least two perpendicular directions), with additional features in the support structure that mitigate bypassing effects and reduce parasitic thermal mass. A method for integrating sensors into the bed to understand the performance of the bed in gas separation while minimizing damage to the structure or disruption to performance is also provided.

A separation station (1) comprising a plurality of separation units (34) for separating carbon dioxide and / or water vapor from ambient air, each separation unit (34) having at least one continuous sealing peripheral wall surrounding at least one cavity (24) in the circumferential direction, said at least one continuous sealing peripheral wall defining an upstream opening (35) and an opposite downstream opening (36), said cavity (24) preferably containing at least one gas adsorption structure (25) for adsorbing said at least one gaseous component under ambient pressure and / or ambient temperature conditions, said plurality of separation units (34) being arranged in at least one substantially vertical collector device wall structure (2) surrounding a single common separation station cavity (21) in the lateral direction, said separation station cavity (21) being covered and closed at the upper side by at least one cover unit (1) provided with at least one air propulsion device (10).

A sorbent for direct air capture of CO2 includes a porous amine-functionalized polymeric material including a backbone and a plurality of side chains having amine groups branching from the backbone, the backbone including a rigid crosslinker having crosslinker groups, a ratio of the crosslinker groups to a total number of monomer repeating units in the polymeric material is about 0.1 to 0.4 such that the polymeric material's internal surface area is about 10 to 500 m2 / g.

A metal-organic framework (MOF) material for selective direct air capture of carbon dioxide includes a UiO-66-X MOF. X is covalently bonded to UiO-66. The X may be an aminosilane with one or more primary or secondary amine groups. A method of making the UiO-66-X. A method for capturing carbon dioxide directly from a CO2 containing gaseous composition.

The present invention relates to a method for operating a CO2 separation device (100; 200), in particular a direct air capture system (100; 200), comprising a desorption step for desorbing CO2 from a sorbent (2) present in an adsorption or desorption chamber (1), wherein the desorption step comprises applying a negative pressure to the adsorption or desorption chamber (1) and displacing the atmosphere in the adsorption or desorption chamber (1) containing CO2 and H2O, such that a molar ratio of CO2 to H2O is more than 50%.

The invention discloses an in-situ regeneration system and an in-situ regeneration method for directly capturing and taking water from air, and the in-situ regeneration system for directly capturing and taking water from air takes water from air while capturing carbon by a DAC (Digital-to-Analog Converter), and realizes in-situ action of low-temperature steam of a water adsorbent on a carbon dioxide adsorbent for desorption. Heat loss in the external steam conveying process is eliminated, the steam utilization efficiency is greatly improved, and meanwhile in-situ steam assists desorption of the carbon dioxide adsorbent so that the vacuum degree requirement in the regeneration process can be lowered.

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.

The invention belongs to the technical field of carbon dioxide trapping, and particularly relates to a fluidized bed device for direct air trapping of carbon dioxide and a using method thereof.The fluidized bed device comprises a flowing rail car, hollow supporting pipes are fixed to the four end corners of the top of the flowing rail car, and a shell is fixed to the tops of the multiple hollow supporting pipes; a discharging cavity and a material collecting cavity are formed in the shell, a plurality of trays are assembled at the upper end of the flowing rail car and are sequentially arranged in the direction of the positive vertical plane, adsorption media are placed in the trays, a plurality of supporting rods are fixed among the trays and are distributed in a linear shape, and the supporting rods are arranged in the shell. And a plurality of air holes are uniformly formed in the side wall of the tray. Unipolar charges are released to the dust collection coiled material through the discharging rod, so that the dust collection coiled material can adsorb dust close to the tray, and the situation that dust in air falls on the surface of an adsorption medium, and the carbon dioxide trapping efficiency of the adsorption medium is reduced is avoided.

The present invention relates to a temperature control arrangement (1) for temperature control of a sorbent bed (110) for obtaining carbon dioxide from a gaseous medium, comprising: - a pipe arrangement (20) with a pipe (21), and - a lamella arrangement (30) in the sorbent discharge (110) with an elongated lamella (31), wherein the tube (21) runs along a longitudinal direction (L) of the lamella (31) and contacts the lamella (31) along the longitudinal direction (L). The invention further relates to a sorbent container arrangement (100) with the temperature control arrangement (1) according to the invention and a device (200) for obtaining carbon dioxide from the gaseous medium with the temperature control arrangement (1) according to the invention.

The invention belongs to the technical field of tunnel construction ventilation, and particularly relates to an air volume compensation system and method for single-hole auxiliary main-hole multi-working-face air bin type ventilation. The system comprises a main fan, an air bin, a purification bin A, a purification bin B and a dirty air capturing module, the main fan is arranged outside the transverse hole and connected with a main air pipe, the main air pipe penetrates through the purification bin B in the transverse hole and is connected with the air bin, the air bin is arranged at the position where the transverse hole intersects with the left line of the main hole and the right line of the main hole, and an inclined branch hole is formed in the position where the left line of the main hole intersects with the transverse hole. The purification bin A is arranged in the inclined branch hole, relay fans are arranged at the air outlets, along the left line and the right line of the main hole, of the air bin correspondingly, and air distribution pipes are installed on the relay fans correspondingly. Dirty air exhausted by a tunnel face is purified through the purification bin A and then supplied to the air bin to serve as air volume compensation, negative pressure and high energy consumption during air bin operation are reduced, dirty air exhausted by multiple working faces is treated through the purification bin B, air flow circulation at the intersection position is accelerated, and the air quality in a tunnel is guaranteed.

This invention discloses a CO2 direct air capture system and method for increasing CO2 partial pressure. The system includes a first air pump, a second air pump, a microbial fuel cell device, a CO2 capture device, a rich liquid desorption unit, and a CO2 storage unit. The microbial fuel cell device includes a reactor housing, a proton exchange membrane, wires, and external circuitry. The first air pump is located outside the microbial fuel cell device and pumps ambient air into the cathode chamber. A jacket is provided outside the reactor housing to enclose the reactor housing. The CO2 capture device is a sealed housing with a liquid inlet, a liquid outlet, an air inlet, and an air outlet. The air outlet of the cathode chamber of the microbial fuel cell device is connected to the air inlet of the CO2 capture device via a pipe, and a second air pump is installed on the pipe. The rich liquid desorption unit includes a battery waste heat heating device and an electrically heated desorber. The CO2 storage unit includes a CO2 compressor and a CO2 storage container.

The invention relates to new carbon dioxide (CO2) adsorbents based on modified weak base anion exchange resin (WBAER) sorbents comprising a crosslinked polymeric backbone containing appended primary and / or secondary amines. The WBAER materials are insoluble in water and common organic solvents, have surface areas of 5-50 m2 / g, and can be in either bead or powder form. The WBAER materials are suspended in water and / or polar organic solvents and treated with polyfunctional epoxide compounds to effect the modification. The modified materials exhibit significantly improved oxidative stability compared with the unmodified ion-exchange resins without significantly impacting their CO2 uptake capacity or CO2 uptake kinetics. The modified materials remain insoluble in water and common organic solvents and, therefore, are not susceptible to leaching under steam-based or moisture-based sorbent regeneration conditions.

The disclosure presents an integrated system consisting of a wastewater production unit, e-methane reactor, an electrolyzer for producing hydrogen, a cryogenic separation unit and an ammonia production unit, where e-methane is produced by reaction of carbon dioxide obtained from direct air capture / biogenic CO2 / captured industrial CO2 emissions / oxidized solid carbon, and from CO2 separated from biogas obtained from wastewater treatment, and hydrogen gas from electrolysis of water. The hydrogen gas is also reacted with nitrogen obtained from the cryogenic unit for the synthesis of ammonia, where heat from ammonia synthesis is transferred to e-methane reactor for energy efficiency. By integrating these units and reactors, the disclosure provides a system for efficient use of energy and by-products.

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.

The present disclosure relates to relates to sorbent coated carbon fibers, modules containing the same, and their use in reducing carbon dioxide levels via direct air capture.

Systems and methods for capturing carbon dioxide from multiple different sources at least in part via the electrochemical production of acids and / or bases are generally described. The carbon dioxide may be captured at least in part via exposure of a first input gas stream from a first source to a capture agent (e.g., a liquid solution comprising electrogenerated basic species) to generate carbonate anions, and then subsequent conversion of at least some of the carbonate anions to bicarbonate anions via capture of additional carbon dioxide from a second input gas stream from a second, different source. The first source may be ambient air (e.g., for a direct air capture process), while the second source may be a point source of carbon dioxide (e.g., industrial effluent).

Systems and methods for mobile offshore carbon capture and sequestration operations. One system includes a first floating offshore installation featuring a direct air capture (DAC) unit, carbon dioxide dehydration unit, CO2 compression unit, and transfer system, and a second floating offshore installation featuring carbon dioxide injection facilities to inject carbon dioxide into an underground reservoir. In other systems and methods, a subsea system is substituted for the second floating offshore installation.

The invention relates to new carbon dioxide adsorbents based on modified weak base anion exchange resins (WBAERs) comprising a crosslinked polymeric backbone containing appended primary and / or secondary amines. The WBAERS materials are insoluble in water and common organic solvents, have surface areas of 5-50 m2 / g, and can be in either bead or powder form. The WBAER materials are suspended in water or a polar organic solvent and treated with haloalcohol or halohydrin compounds to effect the modification. The modified materials exhibit significantly improved oxidative stability compared with the unmodified ion-exchange resins without much impact on their CO2 uptake capacity or CO2 uptake kinetics. The modified materials remain insoluble in water and common organic solvents and, therefore, are not susceptible to leaching under steam-based or moisture-based sorbent regeneration conditions.

A hazardous gas direct air capture (DAC) module includes a frame enclosing a plurality of hazardous gas capture contactors, and a first air mover configured to draw air into an inlet side of the frame and over the plurality of hazardous gas capture contactors to remove hazardous gas from the air, producing clean air. The DAC module also includes a flow director operatively coupled to the frame and configured to direct the clean air exiting the outlet side of the frame away from the frame to reduce re-entry of the clean air into the inlet side of the frame. A DAC system includes set(s) of DAC modules with each set including a first plurality of DAC modules arranged in a first line, and a second plurality of DAC modules arranged in a second line parallel to the first line. The module / system reduce clean air recirculation and more efficient.

A direct air capture module (120, 220) for use with a heating, ventilation and / or air conditioning system (110) having a supply air conduit (112) and an exhaust air conduit (114) within a duct (190) of the heating, ventilation and / or air conditioning system (110). The direct air capture module (120, 220) including a heating arrangement (129) mountable to a first sector of a segment of the duct (190), the first sector of the first segment of the duct (190) being within the exhaust air conduit (114) of the duct (190), the heating arrangement (129) operable to heat the first sector of the segment of the duct (190) in a manner such that the first sector of the segment of the duct (190) with the heating arrangement (129) defines a heating-and-regeneration zone (106). The direct air capture module (120, 220) further including an adsorbent unit (122, 222) mountable within the segment of the duct (190) of the heating, ventilation and / or air conditioning system (110).

The present disclosure provides a method for removing carbon dioxide from a gas comprising carbon dioxide, the method comprising contacting the gas comprising carbon dioxide with a fluidized solid adsorbent, thereby removing carbon dioxide from the gas and forming a carbon dioxide depleted gas.