184 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.

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.

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.

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 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.

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).

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.

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.

Methods of improving sorbent lifetime when performing direct air capture (DAC) of carbon dioxide from carbon dioxide-containing gas mixtures are described. The methods use ammonia gas to regenerate sorbent and release carbon dioxide from the sorbent. These methods prevent degradation and erosion of the sorbent, extending lifetimes of DAC systems, greatly reducing operating cost and making these systems more economically feasible.

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.

The invention belongs to the field of CO2 capture, utilization and storage, and relates to a system and a method for preparing a green fuel by coupling direct air capture with in-situ catalytic conversion. The system comprises an electric energy supply and storage unit, a gas generation and control unit, an adsorption and conversion unit and a product collection and detection unit, and the electric energy supply and storage unit is electrically connected with the gas generation and control unit, the adsorption and conversion unit and the product collection and detection unit. The gas generation and control unit, the adsorption and conversion unit and the product collection and detection unit are connected in sequence. The electric energy supply and storage unit can utilize renewable energy sources to generate electricity and provide electric power for the whole system; the gas generation and control unit can form corresponding gas for adsorption, conversion and purging; the adsorption and conversion unit can realize capture and direct catalytic conversion of CO2 in air to form green fuel; the product collection and detection unit can be used for separating and collecting the generated green fuel and detecting the green fuel.

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.

A system includes a vessel including an inlet configured to receive a thermal energy source, the vessel connected to a feeder for introducing a solid sorbent to an interior of the vessel and a collector configured to receive the solid sorbent for removal of the solid sorbent from the vessel. The system also includes a heat exchanger disposed within the vessel, the heat exchanger configured to hold the solid sorbent and facilitate a heat exchange process between the solid sorbent and the thermal energy source, and an isolation system configured to isolate the interior of the vessel during introducing the solid sorbent into the vessel and / or during removing the solid sorbent from the vessel.

The adsorption section (304) includes a filter plate (414) including a first plate (602) having a first thickness, the first plate (602) defining a plurality of first flow channels through the first thickness to pass the gas flow (122), a second plate (604) having a second thickness, the second plate (604) defining a plurality of second flow channels through the second thickness to pass the gas flow (122), in one embodiment, a first plate (602) is attached to a gas flow (122), a second plate (604) is attached to the first plate (602) to define a plurality of pockets (606), each pocket (606) is separate from the remaining pockets (606), an adsorbent (608) is positioned in each pocket (606) to adsorb carbon dioxide from the gas flow (122), a first mesh (624) is attached to the first plate (602), the first mesh (624) has a plurality of first apertures, a second mesh (626) is attached to the second plate (604), the second mesh (626) has a plurality of second apertures, and a frame (402), a filter plate (414) is mounted in the frame (402).

Embodiments disclosed herein relate to a method of processing coal. The method includes subjecting raw coal to a liquefaction process effective to form a liquid pitch resin and subjecting the liquid pitch resin to a filtration process. The method further includes subjecting the liquid pitch resin to a low crystallinity spinning process to form raw fibers. The raw fibers are then further subjected to a stabilization process designed to oxygen crosslink the raw fibers to form stabilized fibers, and the stabilized fibers are further subjected to a carbonization process to form low thermal conductivity carbon fibers.

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.

A system and a method for continuously separating carbon dioxide from gas mixtures, utilizing a continuous loop of porous monoliths which support a sorbent within its pores. Continuously exposing a portion of the continuous loop of monoliths to a flow of gas mixture containing a minor proportion of carbon dioxide, to adsorb carbon dioxide from the flow. The loop passes through a sealed regeneration and carbon dioxide capture assembly located astride a portion of the loop, and which is capable of sealingly containing a monolith in relative movement through the assembly. The assembly chamber comprises a plurality of separately sealed zones, including at least one zone for purging oxygen from the monoliths, —a subsequent zone for heating the monolith to release the adsorbed carbon dioxide, and another cooling zone for cooling the monolith prior to reentering the adsorption portion of the loop where it is exposed to oxygen.

The disclosure herein relates generally to a filtration system for filtering a stream comprising at least one of a gas, plasma, and liquid. The filtration system includes a plurality of filters, disposed sequentially throughout the filtration system, for filtering a flow of the stream through the filtration system, and at least one conduit disposed between a first filter and second filter of the plurality of filters, the at least one conduit configured to alter the flow of the stream within the filtration system.

A direct air capture system for capturing, containing, and transporting airborne matter includes a filter assembly, a particle container configured to receive airborne matter loosened from the filter assembly, a means for cowling venting configured to utilize vacuum pressure to transport the airborne matter. The system also includes an electric motor assembly having a motor drive, a drive gear, and a drive shaft, as well as at least one scrubbing brush configured to loosen airborne matter from the filter assembly.

Provided are a direct air carbon sequestration system and method using a compound algae liquid coupled with a moisture swing adsorbent, relating to the technical field of air capture. The system comprises a CO2 adsorption device (2), a microalgae carbon sequestration device (3), and a solution-microalgae separation device (4). Ultralow-concentration carbon dioxide (400 ppm) in the atmosphere is captured by means of moisture swing adsorbents (5), and the carbon dioxide can be adsorbed by means of a compound algae liquid; on the basis of different pH values of the algae liquid, the CO2 adsorption device (2) uses different adsorption-desorption operating modes, so that the recycling rate of the adsorbents is greater than 80%; the algae liquid can be recycled by means of photosynthesis, and two carbon sources of a carbon-rich algae liquid and a high-concentration carbon dioxide gas are continuously and stably supplied; and therefore, direct air carbon dioxide capture and sequestration are achieved with high efficiency and low costs.

A system includes a direct air capture (DAC) system, including one or more gas capture systems configured to capture an undesirable gas from air. The system further includes a thermodynamic cycle including a fluid circuit having at least one compressor, at least one recuperator, at least one turbine, at least one first heat exchanger, and at least one second heat exchanger. The fluid circuit is configured to circulate a working fluid, the at least one first heat exchanger is configured to transfer heat from a heat source to the working fluid, and the at least one second heat exchanger is configured to transfer heat from the working fluid to the one or more gas capture systems.